Home About us Products Services Contact us Bookmark
:: wikimiki.org ::
US 6th Fleet

US 6th Fleet

The Sixth Fleet is a US Navy operational unit, headquartered on the command ship Mount Whitney (LCC-20) with its homeport in Gaeta, Italy and operating in the Mediterranean Sea. The Sixth Fleet consists of approximately 40 ships, 175 aircraft and 21,000 people and is the major operational component of Naval Forces Europe. The principal striking power of the Sixth Fleet resides in its aircraft carriers and the modern jet aircraft, its submarines, and its reinforced battalion of US Marines on board amphibious ships deployed in the Mediterranean.

Mission

The Sixth Fleet has both US national and NATO responsibilities. The Commander of the Sixth Fleet, Vice Adm. John "Boomer" Stufflebeem, reports to the Commander, U.S. Naval Forces, Europe in the U.S. chain of command and to Joint Forces Command Naples when the Sixth Fleet operates as part of NATO as COMSTRKFORNATO (Commander Striking Forces NATO).

Organization

The United States Sixth Fleet is operationally organized into task forces. Each task force is responsible to the Sixth Fleet Commander for specific functions related to assigned units.

Task Force 60 Battle Force

Task Force 60 is Sixth Fleet's Battle Force. It is composed of one or more aircraft carriers, each with an accompanying complement of approximately six cruisers and destroyers. On board the aircraft carrier is an air wing of 65 – 85 aircraft. The air wing is the primary striking arm of the Battle Force, and includes attack, fighter, anti-submarine, and reconnaissance aircraft. Ships accompanying the carrier serve as defensive and offensive platforms with duties involving anti-air, surface and submarine warfare. In addition to its major role of controlling the seas, the Battle Force can also project its power over land.

Task Force 61 Amphibious Assault

Task Force 61 is the Mediterranean Amphibious Ready Group (MARG). It is composed of approximately three amphibious ships and their embarked landing craft. From these ships, United States Marine ground forces can move ashore by sea and air in amphibious assault of emergency evacuation missions. Once ashore, the ships of Task Force 61 logistically support the ground forces, until the objective of the landing has been accomplished, and the Marine Forces return to the ships.

Task Force 62 Marine Expeditionary Unit

Task Force 62 is the combat-ready ground force composed of a Marine Expeditionary Unit (MEU) of approximately 1,800 Marines. Transported in Task Force 61 ships, the MEU is equipped with armor, artillery, and transport helicopters that enable it to conduct operations ashore, or evacuate civilians from troubled areas.

Task Force 63 Logistics Force

Task Force 63 is the Logistics Force. Composed of oilers, provision ships, and repair ships, its mission is the delivery of supplies at sea, and effecting repairs to other ships and equipment of the Fleet.

Task Force 64 Strategic Missile Deterrence

Task Force 64 consists of nuclear-powered submarines armed with long-range strategic missiles (SSBN). Until the end of the 1970s these ships were homeported in Rota, Spain. The mission is strategic deterrence.

Task Force 67 Land-Based Maritime Patrol Aircraft

Task Force 67 is composed of land-based maritime patrol aircraft. These aircraft operate over the waters of the Mediterranean in anti-submarine, reconnaissance, surveillance, and mining roles.

Task Force 66/69 Submarine Warfare

Task Force 66/69 is responsible for planning and coordinating area submarine and anti-submarine warfare operations in the Mediterranean. Specifically, Task Force 69 is composed of attack submarines that provide capability to destroy enemy surface ships and submarines, as well as protect other Sixth Fleet ships from attack.

Partial list of ships


- USS Mount Whitney (LCC-20) Command ship Old list (ca. 1965?):
- USS La Salle (AGF-3)
- USS Bang (SS-385)
- USS Oriskany (CV-34)
- USS Tarawa (CV-40)
- USS Albany (CA-123)
- USS Essex (CV-9)
- USS Forrestal (CVA-59)
- USS Intrepid (CV-11)
- USS Baltimore (CA-68)
- USS Topeka (CL-67)
- USS Shangri-La (CV-38)
- USS Leyte (CV-32)
- USS Kearsarge (CV-33)
- USS New Jersey (BB-62)
- USS Gyatt (DD-712)

History and recent operations

The United States has maintained a naval presence in the Mediterranean since the early 19th century, when U.S. Naval forces first engaged the Barbary Pirates to prevent them from interfering with commercial shipping. The earliest squadron was known as the Mediterranean Squadron. In 1946, President Truman dispatched battleship Missouri to the Eastern Mediterranean to counter Soviet threats to Turkey and Iran. The small fleet maintained in the Mediterranean by U.S. Naval Forces, Eastern Atlantic and Mediterranean was known as Naval Forces Mediterranean and had as its flagship, a destroyer tender, anchored at Naples, Italy. The cruiser USS Dayton relieved the tender USS Shenandoah as flagship and began operating with the fleet. The title of Naval Forces Mediterranean was changed to Commander Sixth Task Fleet and then, in 1950, Commander, Sixth Fleet. The Sixth Fleet provided military, logistical and humanitarian assistance to support NATO operations in Kosovo during the Yugoslav wars. It also participated in the so-called Operation Allied Force, Joint Task Force Noble Anvil, Operation Shining Hope and Operation Joint Guardian.

External links


- [http://www.c6f.navy.mil/ Official Commander of 6th Fleet Website]
- [http://www.geocities.com/SoHo/1527/sixthfleet.html Photographic Tribute to the 6th Fleet]
- [http://deploymentlink.osd.mil/news/aug01/news_82901_001.shtml Black Sea Port Visits]
- [http://www.us-israel.org/jsource/Society_&_Culture/navy1.html Relations with Israeli Navy]

See also

Military of Italy Category:Fleets 6th Fleet

US Navy

The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. The U.S. Navy consists of 281 ships and over 4,000 aircraft. It has over half a million men and women on active or ready reserve duty. The United States Navy traces its origins to the Continental Navy, which the Continental Congress established during the American Revolutionary War. The United States Constitution, ratified in 1789, empowered Congress "to provide and maintain a navy." Acting on this authority, Congress ordered the construction and manning of six frigates; one of the original six, USS Constitution, familiarly known as "Old Ironsides," survives to this day. The War Department administered naval affairs from that year until Congress established the Department of the Navy on April 30, 1798. The Navy became part of the Department of Defense upon its establishment in 1947.

History of the Navy

Main article: History of the United States Navy History of the United States Navy The Continental Navy was established in Philadelphia by the Continental Congress on October 13, 1775, which authorized the procurement, fitting out, manning, and dispatch of two armed vessels to search for munitions ships supplying the British Army in America. The legislation also established a Naval Committee to supervise the work. The Continental Navy operated some 50 ships over the course of the American Revolutionary War, but no more than about 20 at one time. After the war, Congress sold the surviving ships and released the seamen and officers. Congress ordered the construction and manning of six frigates on March 27, 1794, and three years later welcomed into service the first three: USS United States, Constellation and Constitution. The frigates became famous in the War of 1812, where they unexpectedly defeated British Royal Navy forces several times. During the American Civil War, the Navy was an innovator in the use of ironclad warships, but after the war slipped into obsolescence. A modernization program beginning in the 1880s brought the U.S. into the first rank of the world's navies by the beginning of the 20th century. 20th century (middle) and USS Annapolis (SSN 760) (front)]] The Navy saw little action during World War I, but grew into a formidable force in the years before World War II. Japan unsuccessfully attempted to allay this strategic threat with a late-1941 surprise attack on Pearl Harbor. During the next three years, the U.S. Navy grew into the most powerful in the world. It is widely accepted that currently the United States Navy remains the most powerful in the world.

Organization

The Navy is administered by the Department of the Navy, led by the Secretary of the Navy (SECNAV). The senior naval officer, the Chief of Naval Operations (CNO), is the four-star admiral immediately under the Secretary of the Navy. The Secretary of the Navy and Chief of Naval Operations are responsible for organizing, recruiting, training, and equipping the Navy so the Navy is ready for operation under the command of the Unified Combatant Commanders. (Also see United States Armed Forces Organization.) President | SECDEF | ------------------- | | SECNAV | | | CNO Unified Combatant Commanders | | -------------------- | | | | Shore establishment Operating Forces (including fleets)

Fleets

The two main fleets are the Pacific Fleet and the Atlantic Fleet. Under these two organizations fall the numbered fleets.
- 1st Fleet - no longer active
- 2nd Fleet – Atlantic Ocean — Flagship Iwo Jima, Norfolk, Virginia
- 3rd Fleet – Eastern and Northern Pacific Ocean — Flagship Coronado, San Diego, California (In peacetime the Third Fleet has no ARG and the carriers in the area are either on their way to the Seventh Fleet or conducting training cruises, after an overhaul for example.)
- 4th Fleet – Disbanded.
- 5th Fleet – Middle East — Headquartered at Manama, Bahrain
- 6th Fleet – Mediterranean Sea — Flagship Mount Whitney, Gaeta, Italy
- 7th Fleet – Western Pacific and Indian Ocean — Flagship Blue Ridge, Yokosuka, Japan

Shore commands

In addition to afloat fleets, the Navy maintains several "Naval Forces Commands" which operate naval shore facilities and serve as liaison units to local ground forces of the Air Force and Army. Such commands are answerable to a Fleet Commander as the shore component of the afloat command. During times of war, all Naval Forces Commands augment to become task forces of a primary fleet. Some of the larger Naval Forces Commands include:
- Commander Naval Forces Korea (CNFK)
- Commander Naval Forces Marianas (CNFM)
- Command Naval Forces Japan (CNFJ)

Staff corps

In addition to the regular line commands of the navy, several staff corps are also maintained which augment the line community and whose personnel are assigned to both line and staff commands. The current staff corps of the United States Navy are as follows:
- Navy Supply Corps
- Navy Medical Corps
- Navy Medical Service Corps
- Navy Nurse Corps
- Navy Chaplains Corps
- Navy Civil Engineer Corps (Seabees)
- Navy Judge Advocate General (JAG)

Weapons

Ships

Main article: U.S. Navy ships See also List of ships of the United States Navy for a more complete listing of ships past and present. The names of commissioned ships of the U.S. Navy start with USS, meaning 'United States Ship'. Non-commissioned, civilian-manned vessels of the U.S. Navy have names that begin with USNS, standing for 'United States Naval Ship'. A letter-based hull classification symbol is used to designate a vessel's type. The names of ships are selected by the Secretary of the Navy. The names are usually those of U.S. states, cities, towns, important people, famous battles, fish, and ideals. The U.S. Navy pioneered the use of nuclear reactors aboard naval vessels; today, they power most U.S. aircraft carriers and submarines. See United States Naval reactor. As of January 2004, a relatively small number of ship classes accounted for the bulk of the U.S. naval fleet. These include:

Aircraft carriers

United States Naval reactor on November 3, 2003. Approximately fifty aircraft can be counted on deck.]] Aircraft carriers are the major strategic arm of the Navy. They put U.S. air power within reach of most land-based military power. The US Navy's carriers are much larger and more powerful than those of the rest of the world. See also: List of aircraft carriers of the United States Navy and List of escort aircraft carriers of the United States Navy. Modern aircraft carriers since CV-67 are typically named for living or dead politicians; previous aircraft carriers were named for battles and famous fighting ships of the Navy.
- Kitty Hawk class (1 ship)
- Enterprise — Norfolk, Virginia
- John F. Kennedy — Mayport Naval Station, Florida
- Nimitz class (9 ships, 1 under construction)
  - USS Nimitz (CVN-68)
  - USS Dwight D. Eisenhower (CVN-69)
  - USS Carl Vinson (CVN-70)
  - USS Theodore Roosevelt (CVN-71)
  - USS Abraham Lincoln (CVN-72)
  - USS George Washington (CVN-73)
  - USS John C. Stennis (CVN-74)
  - USS Harry S. Truman (CVN-75)
  - USS Ronald Reagan (CVN-76)
  - USS George H.W. Bush (CVN-77)

Amphibious assault ships

The largest of all amphibious warfare ships amphibious assault ships resemble small aircraft carriers; capable of V/STOL, STOVL, VTOL tiltrotor and rotary wing aircraft operations; contains a welldeck to support use of Landing Craft Air Cushion and other watercraft. Amphibious assault ships are typically named after World War II aircraft carriers, a name source kept over from the earliest ones, which were converted WWII carriers.
- Wasp class (7 ships)
- Tarawa class (4 ships active, 1 decommissioned)

Amphibious transport docks

Amphibious transports are warships that embark, transport, and land elements of a landing force for a variety of expeditionary warfare missions. Amphibious transport docks are named for cities, except for USS New York (LPD-21), which is named for the state of New York and USS Somerset (LPD-25), which is named for Somerset County, Pennsylvania.
- San Antonio class (3 launched, 2 under construction, 3 planned, 2 projected)
- Austin class (10 ships active, 1 Decommissioned, 1 converted to AGF)

Submarines

:Main article: Submarines in the United States Navy There are two major types of submarines, ballistic and attack. Ballistic subs have a single, strategic mission: carrying nuclear SLBMs. Attack submarines have several tactical missions, including sinking ships and subs, launching cruise missiles, and gathering intelligence. Sea attack submarines are typically named for cities; land attack submarines (Virginia and Ohio-class boats) are typically named for states. Earlier attack submarines were named for fish, while earlier ballistic missile submarines were named for "famous Americans" (although many of these were actually foreigners).
- Ohio class (18 in commission) — ballistic missile submarines, 4 to be converted into guided missile submarines
- Virginia class (1 in commission, 3 under construction, 2 on order) — attack submarines
- Seawolf class (3 in commission) — attack submarines
- Los Angeles Class (51 in commission) — attack submarines

Cruisers

Guided missile cruisers can conduct air warfare, surface warfare and undersea warfare. All modern cruisers are named for battles. Previous cruisers were either named for cities (until CG-12), the redesignated frigates were named for naval heroes (CG-15 to CG-35) or states (CG-36 to CG-42).
- Ticonderoga class (23 in commission) — first ships to carry the Aegis combat system

Destroyers

See also the List of destroyers of the United States Navy. All destroyers have been named for naval heroes since USS Bainbridge (DD-1).
- Arleigh Burke class (44 in commission as of June 2005) — first ship class with comprehensive design for stealth technology.

Frigates

Modern frigates mainly perform anti-submarine warfare and escort other ships. The U.S. Navy is gradually retiring its frigates; some of their jobs will be performed by the nascent littoral combat ship. [http://peoships.crane.navy.mil/lcs/] Named, like the destroyers, for naval heroes.
- Oliver Hazard Perry class (30 ships in commission)

Battleships

All U.S. battleships have been retired, although two Tomahawk-capable ships remain in "Inactive" Reserve. They are maintained in accordance with the National Defense Authorization Act of 1996. Current plans in the United States Navy call for keeping the battleships on the NVR until the naval surface fire support gun and missile development programs achieve operational capability, which is expected to occur sometime between 2003 and 2008. All battleships except USS Kearsarge (BB-5) were named for states.
- Iowa class

Early vessels


- USS Constitution — "Old Ironsides," oldest commissioned warship afloat
- USS Monitor — first US ironclad warship, also first rotating turret
- USS Merrimack — a wooden warship rebuilt by the Confederates as the ironclad CSS Virginia
- USS Alligator — the first submarine of the Civil War, but sunk while being towed during a storm.
- CSS Hunley — First submarine to sink a ship in a combat engagement, though it sunk in the aftermath as well. Built by the Confederates near the end of the Civil War. Sank USS Housatonic with a spar-mounted torpedo.

Naval aircraft

torpedo, 2003]]
- A-4 Skyhawk
- AV-8B Harrier II
- C-2 Greyhound
- E-2C Hawkeye
- E-6B Mercury
- EA-6B Prowler
- ES-3 Shadow
- FH-1 Phantom
- F-14 Tomcat
- F-15 Eagle
- F-16 Fighting Falcon
- F/A-18 Hornet
- F/A-18E/F Super Hornet
- EA-18G Growler
- F-35 Joint Strike Fighter
- H-3 Sea King
- CH-46 Sea Knight
- CH-53 Sea Stallion
- SH-2 Seasprite
- SH-60 Sea Hawk
- P-3C Orion see also Multimission Maritime Aircraft
- S-3B Viking
- V-22 Osprey
- T-6A Texan II
- T-45 Goshawk
- Aerial Common Sensor (no designation yet)

Harbor defense

The United States Navy has, in the last few years, greatly expanded its harbor defense forces in response to the War on Terrorism. The main components of Naval Harbor Defense include:
- Inshore Boat Units (IBUs)
- Mobile Inshore Undersea Warfare Units (MIUWUs)
- Special Boat Units (SBUs)

Special warfare

The Navy Seals are the U.S. Navy's primary special warfare units whose purpose is to engage in "special activities other than war". The Navy also maintains an EOD Corps (Explosive Ordnance Disposal) as well as a small corps of Surface Warfare personel known by the designator "Special Operations Underway".

Missiles, guns, equipment


- Trident missile
- Poseidon missile
- Tomahawk missile
- Polaris missile
- Naval Space Surveillance System
- CIWS

Submarine warfare and nuclear deterrence

The submarine has a long history in the USN. It began in the late 19th century, with the building of the SS-1, USS Holland. The boat was in service for 10 years and was a developmental and trials vessel for many systems on other early submarines. The submarine really came of age in World War I. The USN did not have a large part in this war, with its action mainly being confined to escorting convoys later in the war and sending a division of battleships to reinforce the British Grand Fleet. However, there were those in the USN submarine service who saw what the Germans had done with their U-boats and took careful note. Doctrine in the inter-war years emphasised the submarine as a scout for the battle fleet, and also extreme caution in command. Both these axioms were proven wrong after the attack on Pearl Harbor in December 1941. The submarine skippers of the fleet boats of World War II waged a very effective campaign against Japanese merchant vessels, doing to Japan what Germany failed to do to the United Kingdom. They were aggressive and effective, and operated far from the fleet. In addition to their commerce raiding role, submarines also proved valuable in air-sea rescue. There was many an American aircraft carrier pilot who owed his life to the valour of USN submarine crews, including future U.S. President George H. W. Bush.

Navy revolutions

After WWII, things continued along much the same path until the early 1950s. Then a revolution, that was to forever change the nature of the submarine arm occurred. That revolution was USS Nautilus. The Nautilus was the first nuclear-powered submarine. Up until that point, submarines had really been, at their most basic level, torpedo boats that happened to be able to go underwater. They had been tied to the surface by the need to charge their batteries using diesel engines relatively often. The nuclear power plant of the Nautilus meant that the boat could stay underwater for literally months at a time, the only limit in the end being the amount of food that the boat could carry. Another revolution in submarine warfare came with USS George Washington. Nuclear powered, like Nautilus, George Washington added strategic ballistic missiles to the mix. Earlier submarines had carried strategic missiles, but the boats had been diesel powered, and the missiles required the boat to surface in order to fire. The missiles were also cruise missiles, which were vulnerable to the defences of the day in a way that ballistic missiles were not. George Washington's missiles could be fired whilst the boat was submerged, meaning that it was far less likely to be detected before firing. The nuclear power of the boat also meant that, like Nautilus, George Washington's patrol length was only limited by the amount of food the boat could carry. Ballistic missile submarines, carrying Polaris missiles, eventually superseded all other strategic nuclear systems in the USN. Deterrent patrols continue to this day, although now with the Ohio class boats and Trident missiles. Trident missile]] Given the lack of large scale conventional naval warfare since 1945, with the USN's role being primarily that of power projection, the submarine service did not fire weapons in anger for very many years. The development of a new generation of cruise missiles changed that. The BGM-109 Tomahawk missile was developed to give naval vessels a long range land attack capability. Other than direct shore bombardment, and strikes by aircraft flying off carriers, the ability of naval vessels to influence warfare on land was limited. Now, instead of being limited to firing shells less than 20 miles inland from guns, any naval vessel fitted with the Tomahawk could hit targets up to 1,000 miles inland. The mainstay of the Tomahawk equipped vessels in the early days of the missile's deployment were the Iowa class battleships, and the submarine fleet. The Tomahawk was first used in combat on 17 January 1991, on the opening night of Operation Desert Storm. On that day, for the first time since the surrender of Japan in 1945, an American submarine fired in combat, when Tomahawks were launched by US boats in the eastern Mediterranean. Since then, the Tomahawk has become a staple of American campaigns. It has seen use in no less than three separate wars. It has also been exported to the United Kingdom, which has also fitted it to submarines. The Tomahawk has seen a change in the design of attack submarines. At first it was fired through torpedo tubes, but more recent US boats have been fitted with vertical launch systems to enable them to carry more of the weapons. In the early 21st century, the USN submarine fleet is made up entirely of nuclear powered vessels. It is the most powerful of its type in the world. However, there are those who worry that there are not enough boats in the fleet. As with other branches of the US military the budget cuts of the late 1980s and the early 1990s, as the Cold War ended, followed up by the War on Terrorism, have left little or no slack in the system. This point is illustrated by the fact that in 2003, for the first time since 1945, a US submarine made two back-to-back war patrols.

Major naval bases


- Complete list of US Naval facilities
- Norfolk, Virginia — The largest Naval base in the world, situated in southeastern Virginia. This is the main port on the Eastern Seaboard.
- Pearl Harbor, Hawaii — A deep water naval base and headquarters of the Pacific Fleet
- San Diego, California — A large complex of Navy bases, and the primary port for ships on the West Coast of the United States
- Naval Base Kitsap, Washington — Home base for Ohio Class nuclear missile submarines in the Pacific Ocean
- Naval Submarine Base Kings Bay, Georgia — Home base for Ohio Class nuclear missile submarines in the Atlantic Ocean
- Naval Station Mayport, Florida
- Naval Air Station Fallon, Nevada
- Guantanamo Bay — A small section on the south coast of Cuba is leased by the United States and used as a naval base.
- U.S. Fleet Activities Yokosuka, Japan. Largest overseas Naval facility.

Personnel

Commissioned officer

Commissioned officers in the Navy have paygrades from O-1 to O-10. Officers with superior performance may be promoted. Officers between O-1 and O-4 are called junior officers, O-5 and O-6 are called senior officers, and O-7 to O-10 are called flag officers. See U.S. Navy officer rank insignia for a complete list of paygrades and corresponding ranks. Commissioned officers belong to one of the following communities:
- Unrestricted line: Surface Warfare, Aviation Warfare, Submarine Warfare, Special Warfare, Nuclear
- Restricted line: Engineering Duty, Aerospace Engineering Duty, Aerospace Maintenance Duty, Cryptologic, Naval Intelligence, Public Affairs, Meteorology and Oceanography, Information Professional, Human Resource
- Staff Corps: Supply Corps, Medical Corps, Medical Service Corps, Dental Corps, Nurse Corps, Chaplain Corps, Civil Engineer Corps, Judge Advocate General Corps, Navy Band Corps The term "line" officer means someone who may command a warship or an aviation unit. It is a carryover from the 18th-century British tactic of employing warships in a "line" to take advantage of cannons on each side of the ship. The captains of such vessels commanded "ships of the line." Today, all Navy line officers wear a star on the sleeves of uniforms near the cuff braid that denotes rank. Staff officers wear different insignias. Note: Marine Corps officers, also part of the Department of the Navy, are all considered "line" officers because they are qualified as troop commanders in addition to their specialties. Commissioned officers originate from the United States Naval Academy, Navy Reserve Officer Training Corps (NROTC), Officer Candidate School (OCS), direct commission, and other commissioning programs (such as [https://www.sta-21.navy.mil/ Seaman to Admiral-21] and Limited Duty Officer programs).

Enlisted

Enlisted members of the Navy have paygrades from E-1 to E-9. Enlisted members with superior performance may be advanced in paygrade. Two notably significant advancements are Seaman to Petty Officer Third Class (E-3 to E-4) and Petty Officer First Class to Chief Petty Officer (E-6 to E-7). Advancement to Chief Petty Officer is especially significant, marked by a special initiation ceremony. See U.S. Navy enlisted rate insignia for a complete list of the paygrades. All new active-duty enlisted members receive basic training ("boot camp") at the Recruit Training Command in Great Lakes, Illinois. Those who have a contract for a specific rating continue onto "A" schools for training in the rating. Those who don't have a specific rating go into the fleet to learn on the job and later strike for a rating. Some members may go to additonal training in a "C" school either before a tour of duty, or after a tour of duty. A "C" school assigns a member a Navy Enlisted Classification code, or NEC, which shows that a sailor is able to perform a specific task requiring that NEC, such as NEC 2780 - Network Security Vulnerablity Technician. Enlisted members of paygrades E-4 and above are said to be "rated" and have a rating: an occupational specialty. As of June 2005, there are more than 50 ratings, including Boatswain's Mate, Quartermaster, Engineman, Damage Controlman, Electronics Technician, Information Systems Technician, Air Traffic Controller, Fire Control Technician, Gunner's Mate, Sonar Technician, Construction Mechanic, Hospital Corpsman, Yeoman, Disbursing Clerk, Culinary Specialist, Photographer's Mate, Musician, Master-at-Arms, Aviation Electronics Technician, and Cryptologic Technician. Some ratings have subspecialties acquired either through an initial "A" school for training (such as Cryptologic Technician Technical and Cryptologic Technician Collection) or through a separate "C" school (such as Aviation Electronics Technician Organizational and Aviation Electronics Technician Intermediate.)

Qualifications

Sailors prove they have mastered skills and deserve responsibilities by completing Personal Qualification Standards (PQS) tasks and examinations. Among the most important is the "warfare qualification," which denotes a journeyman level of capability in Aviation Warfare, Special Warfare, Surface Warfare, or Submarine Warfare. Many qualifications are denoted on a sailor's uniform with U.S. Navy badges and insignia.

Sea Warrior

Launched in 2003 as part of the Navy's [http://www.chinfo.navy.mil/navpalib/cno/proceedings.html Sea Power 21] transformation plan, Sea Warrior is intended to link the fleet's personnel processes (recruiting, training, and assigning) with acquisition processes (buying ships, aircraft, etc.) in a way that also improves each individual sailor's ability to guide his or her own career in a satisfying direction. The aim is to more efficiently muster the right number of sailors with the right skills and seniority at each ship, squadron, and duty station. Sea Warrior is led by the Chief of Naval Personnel[http://www.chinfo.navy.mil/navpalib/people/flags/biographies/hoewinggl.html], and the commander of the [https://www.cnet.navy.mil/netc/netc.html Naval Education and Training Command].

Naval culture

Navy sailors are trained in the core values of Honor, Courage, Commitment. Sailors cope with boredom on long cruises of six months to a year, and cherish their time in their home ports, as well as vacations at ports abroad.

Naval jack

Chief of Naval Personnel Chief of Naval Personnel Chief of Naval Personnel The naval jack of the United States is the First Navy Jack, first used during the American Revolutionary War. On May 31, 2002, Secretary of the Navy Gordon England directed all U.S. naval ships to fly the First Navy Jack for the duration of the War on Terrorism. Many ships chose to shift colors on September 11, 2002. The jack is flown from the bow of the ship and the ensign from the stern when the ship is moored or anchored. When underway, the ensign is flown from the main mast. The former naval jack was a blue field with 50 white stars, identical to the canton of the ensign, both in appearance and size. A jack of similar design was first used in 1794, though with 13 stars arranged in a 3–2–3–2–3 pattern.

Naval jargon

Main article: Military slang A distinct jargon has developed among sailors over the course of the last four centuries. Naval jargon is spoken by American sailors as a normal part of their daily speech. There are three distinct components of Naval jargon:
- Words that are unique to sailing and have no use in standard English, such as yardarm, bow, and stern.
- Archaic English that remains common in naval jargon, such as "aye" (the common English word for "Yes" until the 16th century), "Fo'c'sle" (from Fore Castle), and Bo'sun (from "Boat Swain", swain being Middle English for a young man or a servant).
- Modern jargon, such as "Bird" to refer to missiles, or 1MC. See U.S. Navy slang for more information. Also see Covey Crump.

Notable members of the U.S. Navy

Covey Crump Officers
- Vern Clark — former Chief of Naval Operations
- Robert Dennison — retired admiral, presidential aide
- George Dewey — Hero of the Battle of Manila Bay in Spanish-American War; first and only Admiral of the Navy
- David Farragut — American Civil War Admiral, first officer to become an Admiral in the U.S. Navy
- Wilson Flagg — retired Admiral, killed in Sept 11 attack
- William Halsey, Jr. — Third Fleet Commander, won battles off Guadalcanal and the Solomons; attained rank of Fleet Admiral (5 stars)
- Esek Hopkins — first Commander in Chief of the navy during the Revolutionary War
- Grace Hopper — early computing pioneer, attained the rank of Rear Admiral in the Navy Reserve
- John Paul Jones — commander during the American Revolutionary War, considered to be the founder of the American Naval tradition
- Ernest King — Fleet Admiral; former Chief of Naval Operations
- William D. Leahy — first Fleet Admiral; first head of the Chiefs of Staff (before the post was renamed Chairman of the Joint Chiefs of Staff); former Chief of Naval Operations; former Governor of Puerto Rico; former U.S. ambassador to France
- Richard Marcinko — author, founder and commander of SEAL Team Six
- Chester Nimitz — Fleet Admiral; former Chief of Naval Operations; signed for the U.S. when Japan formally surrendered onboard the USS Missouri, class of carriers named after him
- Matthew Perry — Commodore who forced the opening of Japan
- Eli Thomas Reich — Vice Admiral, only submariner to sink a Japanese battleship unaided during WW2.
- Hyman G. Rickover — Admiral, "Father of the Nuclear Navy"
- Raymond A. Spruance -Commander at the Battle of Midway, led the Fifth Fleet in the Central Pacific and Okinawa. Rebuilt the Naval War College after World War II Politicians
- George H. W. Bush — former U.S. President; youngest Naval Aviator in World War II; former director of the Central Intelligence Agency
- Jimmy Carter — former U.S. President; Cold War submariner and Peace Prize laureate
- Glenn Robert Davis — former member of the US House of Representatives
- Gerald Ford — former U.S. President; served aboard carrier during World War II
- Lyndon B. Johnson — former U.S. President; worked as a bomb observer with the Army during World War II
- John F. Kennedy — former U.S. President; decorated PT Boat commander in World War II
- John Kerry — junior U.S. Senator and 2004 Democratic presidential candidate; swift boat commander during the Vietnam War
- John McCain — senior U.S. Senator from Arizona and Republican presidential primary candidate in 2000; former naval aviator and POW
- Richard M. Nixon — former U.S. President; supply officer in World War II Astronauts
- Neil Armstrong — astronaut, first man on the moon
- James Lovell — naval aviator, astronaut, pilot of first lunar orbit flight (Apollo 8) and commander of Apollo 13 mission
- Alan Shepard — naval aviator, first American in space (Mercury-Redstone 3) and Apollo 14 commander
- John Young — naval aviator and Gemini, Apollo, and Space Shuttle astronaut Others
- Bill Cosby — actor, comedian and educational philanthropist
- Lenny Bruce — American comedian
- Robert A. Heinlein — science fiction author
- L. Ron Hubbard — science fiction author and founder of the Church of Scientology
- David Robinson — former NBA star (San Antonio Spurs), commonly nicknamed "The Admiral"
- Bill Sharman — basketball Hall of Famer
- Roger Staubach — football hall of Famer, Vietnam veteran
- Jesse Ventura — actor, professional wrestler, Governor of Minnesota

See also


- Continental Navy
- Electronics Technician rating
- Information Systems Technician rating
- Seabees, US Navy Construction Battalions, hence CBs
- Navy SEAL, special forces
- BUPERS
- Fleet Week
- WAVES
- Ship-Submarine recycling program
- U.S. Navy officer rank insignia
- U.S. Navy enlisted rate insignia
- Unrestricted Line Officer
- Restricted Line Officer
- Limited Duty Officer
- Awards and decorations of the United States military
- Military badges of the United States
- United States armed forces
- United States Secretary of the Navy
- Comparative military ranks
- List of United States Navy bases
- List of ships of the United States Navy
- List of active Navy ships, sorted by homeport
- List of units of the United States Navy
- U.S. Navy munitions
- Navy Band
- Eternal Father Strong to Save (the U.S. Navy hymn)

References


- [http://www.navy.mil Official U.S. Navy Website]
- [http://www.hq.navy.mil/ Department of the Navy Website]
- [https://www.nko.navy.mil Navy Knowledge Online]
- [http://www.seawarrior.navy.mil Sea Warrior]
- [http://www.nosi.org Naval Open Source Intelligence (NOSI)] — a digital library of world naval operational news, curated from open source intelligence, and intended to serve as a source of continuing education on naval and military affairs
- [http://www.microworks.net/pacific/ U.S. Navy in WW II] — a web site devoted to the U.S. navy in the Pacific theater during World War II

External links


- [http://www.navsource.org NavSource Naval History - Photographic History Of The U.S. Navy ] — a source of thousands of photographs of US Navy ships.
- [http://www.maritimequest.com/warship_directory/us_navy_pages/us_battleship_list.htm Maritimequest US Battleship photo gallery]
- [http://www.ibiblio.org/hyperwar/USN/ The Offical Chronology of the US Navy In World War II]
- Category:Navies ja:アメリカ海軍

USS Mount Whitney (LCC-20)

USS Mount Whitney (LCC-20), a Blue Ridge class command ship, is the flagship of the United States Navy's 6th Fleet. She had previously served for years as 2nd Fleet's command ship. Originally authorized as AGC-20, was reclassified LCC-20 on 1 January 1969, and laid down 6 January by Newport News Shipbuilding & Drydock Company, Newport News, Virginia. The ship is named for Mount Whitney, the 14,946-foot peak in the Sierra Nevada range in California, the highest point in the lower 48 United States.
- She carries enough food to feed the crew for 90 days and can transport supplies to support an emergency evacuation of 3,000 people.
- Her distilling units make over 100,000 US gallons (400 m³) of fresh water a day
- The first U.S. Navy combatant to permanently accommodate women on board. Considered by some to be the most sophisticated Command, Control, Communications, Computer, and Intelligence (C4I) ship ever commissioned, Mount Whitney incorporates various elements of the most advanced C4I equipment and gives the embarked Joint Task Force Commander the capability to effectively command all units under the command of the Commander, Joint Task Force. Mount Whitney can receive and transmit large amounts of secure data from any point on earth through HF, UHF, VHF, SHF and EHF communications paths. This technology enables the Joint Intelligence Center and Joint Operations Center to provide the timely intelligence and operational support available in the Navy. The ship deployed in 1994 to Haiti with Lt. Gen. Hugh Shelton, commander of the 18th Airborne Corps, in command of the Joint Task Force that conducted Operation Uphold Democracy. In 1999, Mount Whitney deployed to the Mediterranean as flagship for Commander, 6th Fleet, relieving the command ship USS La Salle. On November 12, 2002, Mount Whitney deployed to the Central Command area of responsibility in support of Operation Enduring Freedom. During the deployment the ship embarked elements of the 2nd Marine Division and II Marine Expeditionary Force (II MEF), based at Camp Lejeune, North Carolina, under the command of Maj. Gen. John F. Sattler. From October 2004, the ship was largely taken over by the Military Sealift Command. It remained a commissioned warship in the United States Navy, but most of its Navy crew was replaced by civilian Military Sealift Command personnel. The size of its complement shrank from 600 sailors to 157 sailors and 143 civilians. In January 2005, Mount Whitney left Norfolk for Gaeta, Italy where she assumed duties as the 6th Fleet command ship on 25 February 2005. She relieved La Salle, which is scheduled for decommissioning.

External links


- [http://www.mtwhitney.navy.mil USS Mount Whitney official Site]
- [http://www.navsource.org/archives/10/0120.htm Photos]
- [http://navysite.de/ships/lcc20.htm navysite.de: USS Mount Whitney] Mount Whitney ja:マウント・ホイットニー (揚陸指揮艦)

Gaeta

Gaeta (ancient Latin name Caieta) is a city in Province of Latina, in Lazio, Italy. The town has played a conspicuous part in military history . Its fortifications date back to Roman times, and has several traces of the period, including the first-century mausoleum of the Roman general Lucius Munatius Plancus at the top of the Montagna Spaccata («Split Mountain»). These fortifications were extended and strengthened in the 15th century, and indeed throughout the history of the Kingdom of Naples (later the Two Sicilies). Nowadays Gaeta is a fishing and oil seaport, and a renowned tourist resort. NATO maintains a base of operations at Gaeta.

History

According to the legend told by Virgil, Caieta was the name of Aeneas’ wet-nurse, who would have been buried here. According to Strabo the name stemmed from the Greek term kaiétas, which means «cave», probably referring to the several harbours. In the classical age Caieta was a tourist resort and host house of many important and rich characters of Rome, as well as the neighbouring Formia and Sperlonga, all linked to capital of the Empire by Via Appia and its end trunk Via Flacca (or Valeria), through an apposite diverticulum. At the beginning of Middle Ages, after the Lombards invasion, Gaeta remained under Byzantine Empire suzerainty. In the following years, like Amalfi, Sorrento and Naples, it would seem to have established itself as a practically independent port and to have carried on a thriving trade with the Levant. Its history, however, is rather obscure until, around 830, it become a lordship ruled by hereditary Hypati, or consuls: the first one was Constantine (839-866), who was followed by Marino I and then Docibile I (867-906). Greatest of Hypati was John I (906-933), who crushed the Saracens at Garigliano in 915 and gained the title of patricius from Byzantium’s Emperor Constantine VII. In the 11th century the duchy fell into the hands of the Norman counts of Aversa, afterwards princes of Capua, and in 1135 it was definitively annexed to his kingdom by Roger of Sicily. The town, however, maintained its own coinage as late as 1229. In 1227 Frederick II was in the city and strengthened the castle. However, in the struggle between the Emperor and the Papacy Gaeta fell to the latter, and the Papal forces destroyed the imperial castle in the fray. In 1233, Frederick regained control of the important port and fortress. In 1279 Charles I of Anjou rebuilt the castle and enhanced the fortifications. In 1289 James of Aragon besieged the city in vain. From 1378 Gaeta hosted for some years antipope Clement VII. Future King of Naples Ladislas lived in Gaeta from 1387. Here, on 21 September, he married Costanza Chiaramonte, whom he repudiated three years later. Alfons I of Naples made Gaeta his beachhead for the conquest of the Kingdom of Naples in 1435. He enlarged the castle, which became his royal palace, and created a mint. In 1495 French king Charles VIII conquered the city and sacked it. The following year, however, Frederick I of Aragon regained it with a tremendous siege which lasted from September 8 to November 18. In 1528 Andrea Doria, admiral of Charles V, defeated a French fleet in the waters facing Gaeta and gave the city to its emperor. Gaeta was thenceforth protected with a new and more extensive wall, which also encompassed Monte Orlando. Charles V On September 30, 1707 Gaeta was stormed and taken after a three months siege by the Austrians under Daun. On 6 August, 1734 it was taken, after a siege of four months, by French, Spanish and Sardinian troops under the future King Charles of Naples. The fortifications were again strengthened; and in 1799 it was temporarily occupied by the French. On July 18, 1806 it was captured, after an heroic defence, by the French under Masséna. On July 18, 1815 it capitulated, after a three months siege, to the Austrians. In November 1848 Pope Pius IX, after his flight in disguise from Rome, found a refuge at Gaeta, where he remained until September 4, 1849. Finally, in 1860, it was the scene of the last stand of Francis II of the Two Sicilies against the forces of United Italy. Shut up in the fortress with 12,000 men, after Garibaldi's occupation of Naples, the king, inspired by the heroic example of Queen Maria, offered a stubborn resistance, and it was not till February 13, 1861 that he was forced to capitulate after the withdrawal of the French fleet made bombardment from the sea possible,. After the Risorgimento and until World War II, Gaeta grew in importance and wealth as a seaport. The nearby town of Elena, separated after the Risorgimento and named after the queen of Italy, was reunited to Gaeta following World War I. Mussolini transferred Gaeta from the southern region known today as Campania (formerly Terra di Lavoro, to which it is historically and culturally attached) to the central region of Lazio. During World War II, the city retained its strategic importance for Mussolini and later for his Nazi allies. After the king dismissed Mussolini, the latter was initially taken via Gaeta to the island prison of Ponza (where Mussolini had previously locked up many of his political enemies). To keep the population ignorant of the massive convoy, a false air-raid siren sounded. Mussolini would later be transferred to Gran Sasso, from where the Germans rescued him. Germans After Italy surrendered to the Allies, however, the town's fortunes began to decline. Recognizing the city's strategic importance, and fearful of an Allied landing in the area, German troops occupied the city and expelled most of the population. The zone of exclusion began with a five-kilometre border from the historical city centre. Soon after, however, the population was expelled even beyond this point. The Gaetani were finally ordered to leave the area completely. Those who could not were placed in a concentration camp, and a few were taken to Germany. Following the Allied advance across the Garigliano and the Allied occupation of Rome, the Gaetani were allowed to return to their city and begin the process of rebuilding. In subsequent decades the city has boomed as a beach resort, and has seen some success at marketing its agricultural products, primarily its tomatoes and olives. Many of its families count seamen among their number. However, the decades since World War II have been as difficult for Gaeta as they have been for most of Italy's southern regions (the so-called Mezzogiorno). In particular, its importance as a seaport has nearly vanished, and ferries to Ponza and elsewhere now leave from the nearby town of Formia. All attempts to build a permanent industry as a source of employment and economic well-being for the town have failed. Notable losses include the Littorina rail line (now used as a parking lot and a marketplace), the AGIP refinery (nowadays a simple depot), and the once-thriving glass factory, which has become an unused industrial relic.

Main sights

AGIP AGIP Main monuments of the city include:
- The massive Castle.
- The Mausoleum of Lucius Munatius Plancus (22 BC) is a cylindrical travertine monument at the top of Monte Orlando (168 m). It stands at 13.20m and has a diameter of 29.50 m. Another important Roman public man, Lucius Sempronius Atratinus, Marc Antony's fleet commander, has a mausoleum, site in the more recent district of Gaeta: of similar diamater, it is however less well preserved.
- The Sanctuary of SS. Trinità, mentioned as early as the 11th century and visited, among the others, by St. Francis and Saint Philip Neri. The Curcifix Chapel was built in 1434 over a rock which had falled from the nearby cliffs. From the sanctuary the Grotta del Turco can be visited: it is a grotto which ends directly in the sea and where the waves create suggestive light phenomena.
- The Church of Annunziata (1320), it was rebuilt at the beginning of in Baroque style by Andrea Lazzari. It houses works by Luca Giordano, Sebastiano Conca and Giacinto Brandi, as well as the sarcophagus of Enrico Caracciolo, a notable Gothic artwork. The most interesting sight is however the Golden Grotto, a Renaissance room where Pope Pius IX devised the dogma of Papal infallibility. The walls of the grotto are decorated with 19 panels by Giovan Filippo Criscuolo (1531) into carved and gilded frames with small pilasters. On the altarpiece is an Immacolata by Scipione Pulzone.
- Church of San Giovanni a Mare was built by the hypate Giovanni IV in the 10th century, outside the old sea walls of the city. It is a rare example of fusion between the basilica plant with the Byzantine one. The simple façade has a Gothic portal and a dome, while the interior has a nave with two aisles. The inner pavement is slightly inclined to allow waters flow away after sea floods.
- The Cathedral of Assunta and Sant'Erasmo. It was erected over a more ancient church, Santa Maria del Parco, and consecrated by Pope Pascal II in 1106: it had a nave with six aisles separated da columns with Gothic capitals. In 1778, however, two of the aisles were suppressed and the Gothic lines hidden. In 13th century Arab-style arches were added over the capitals. In 1663 the crypt was decorated in Baroque style. The interior houses a banner from the Battle of Lepanto, donated by Pope Pius V to Don John of Austria, who used it as admiral flag. The main sight of the church is however the the Easter candelabrum, standing at 3.50 m, from the late 13th century: it is a Romanesque marble artwork, decorated with 48 reliefs in 4 vertical rows, telling the Stories of the Life of Jesus. There are also paintings by Giacinto Brandi and Giovan Filippo Criscuolo.
- The large church of St. Francis was constructed, according to the legend, by the Saint himself in 1222.
- The Cathedral has a great belfry, standing at 57 m, which is considered the city's finest piece of art. The base has two marble lions, and the whole construction made large use of ancien roman architectural parts. The upper part, with octagonal plant and small Romanesque arches with majolica decoration, was completeed in 1279.
- The parish church of Santa Lucia, the former St. Mary in Pensulis, was once a Royal chapel and here prayed Margherita of Durazzo and king Ladislas. It had originally Romanesque and Sicilian-Arab lines, but in the 1456 it was rebuilt in Renaissance style, and in 1648 to a Baroque one. The side has a Mediaeval pronaos with ancient fragments and beast figures.
- The Medieval Quarter is itself of interest. It lies on a the steep sides of Mount Orlando and has characteristic houses from the 11th-13th centuries. Gaeta is also the centre of the Regional Park of Riviera di Ulisse, which includes Monte Orlando, Gianola and the Scauri Mounts, and the two promontories of Torre Capovento and that of Tiberius' Villa at Sperlonga.

Culture

Gaeta has erected a monument to Giovanni Caboto (John Cabot), who according to many sources was born there (although other sources give Genoa). Other important people which was born in Gaeta include: Pope Gelasius II, writer and Papal diplomatic Tommaso De Vio, and the painters Giovanni da Gaeta, Giovan FIlippo Criscuolo (c. 1500-1584), Scipione Pulzone (1550-1597) and Sebastiano Conca (1680-1764). Gaetani speak a dialect of Italian that, while similar to the nearby Neapolitan, is one of the few Italian dialects to preserve Latin's neuter gender. Distinctive local cuisine includes the tiella, which resembles both a pizza and a calzone, the sciuscielle and the mostaccioli. The most famous folklore event of Gaeta is Gliu Sciuscio of December 31, in which bands of young Gaetani in traditional costumes go for the city's streets, playing mainly self-built instrument. The town is also notable for its distinctive brand of olives, marketed throughout the world (the main production, however, takes place in neighbouring Itri) and its splendid beaches (Serapo, Fontania, Ariana, Sant'Agostino).

External links


- [http://www.gaeta.it gaeta.it] ---- Category:Coastal towns of Lazio Category:Repubbliche Marinare of Italy Category:Baroque art Category:Renaissance art Category:Norman architecture Category:Gothic art ja:ガエータ

Aircraft

An aircraft is any machine capable of atmospheric flight. flight. This is a wide-bodied long-haul aircraft]]

Categories and classification

Aircraft fall into two broad categories:

Heavier than air


- Heavier than air aerodynes, including autogyros, helicopters and variants, and conventional fixed-wing aircraft: aeroplanes in Commonwealth English (excluding Canada), airplanes in North American English. Fixed-wing aircraft generally use an internal-combustion engine in the form of a piston engine (with a propeller) or a turbine engine (jet or turboprop), to provide thrust that moves the craft forward through the air. The movement of air over the airfoil produces lift that causes the aircraft to fly. Exceptions are gliders which have no engines and gain their thrust, initially, from winches or tugs and then from gravity and thermal currents. For a glider to maintain its forward speed it must descend in relation to the air (but not necessarily in relation to the ground). Helicopters and autogyros use a spinning rotor (a rotary wing) to provide lift; helicopters also use the rotor to provide thrust. The abbreviation VTOL is applied to aircraft other than helicopters that can take off or land vertically. STOL stands for Short Take Off and Landing. Mainly used internationally.

Lighter than air

STOL
- Lighter than air aerostats: hot air balloons and airships. Aerostats use buoyancy to float in the air in much the same manner as ships float on the water. In particular, these aircraft use a relatively low density gas such as helium, hydrogen or heated air, to displace the air around the craft. The distinction between a balloon and an airship is that an airship has some means of controlling both its forward motion and steering itself, while balloons are carried along with the wind.

Types of aircraft

:See also: List of aircraft There are several ways to classify aircraft. Below, we describe classifications by design, propulsion and usage.

By design

A first division by design among aircraft is between lighter-than-air, aerostat, and heavier-than-air aircraft, aerodyne. Examples of lighter-than-air aircraft include non-steerable balloons, such as hot air balloons and gas balloons, and airships (sometimes called dirigible balloons) such as blimps (that have non-rigid construction) and rigid airships that have a rigid frame. The most successful type of rigid airship was the Zeppelin, although there were some accidents such as the Hindenburg Zeppelin which was destroyed in a fire at Lakehurst, NJ, in 1937. In heavier-than-air aircraft, there are two ways to produce lift: aerodynamic lift and engine lift. In the case of aerodynamic lift, the aircraft is kept in the air by wings or rotors (see aerodynamics). With engine lift, the aircraft defeats gravity by use of vertical thrust greater than its weight. Examples of engine lift aircraft are rockets, and VTOL aircraft such as the Hawker-Siddeley Harrier. Among aerodynamically lifted aircraft, most fall in the category of fixed-wing aircraft, where horizontal airfoils produce lift, by profiting from airflow patterns determined by Bernoulli's equation and, to some extent, the Coanda effect. The forerunner of these type of aircraft is the kite. Kites depend upon the tension between the cord which anchors it to the ground and the force of the wind currents. Much aerodynamic work was done with kites until test aircraft, wind tunnels and now computer modelling programs became available. In a "conventional" configuration, the lift surfaces are placed in front of a control surface or tailplane. The other configuration is the canard where small horizontal control surfaces are placed forward of the wings, near the nose of the aircraft. Canards are becoming more common as supersonic aerodynamics grows more mature and because the forward surface contributes lift during straight-and-level flight. The number of lift surfaces varied in the pre-1950 period, as biplanes (two wings) and triplanes (three wings) were numerous in the early days of aviation. Subsequently most aircraft are monoplanes. This is principally an improvement in structures and not aerodynamics. Other possibilities include the delta-wing, where lift and horizontal control surfaces are often combined, and the flying wing, where there is no separate vertical control surface (e.g. the B-2 Spirit). A variable geometry ('swing-wing') has also been employed in a few examples of combat aircraft (the F-111, Panavia Tornado, F-14 Tomcat and B-1 Lancer, among others). The lifting body configuration is where the body itself produce lift. So far the only significant practical application of the lifting body is in the Space Shuttle, but many aircraft generate lift from nothing other than wings alone. A second category of aerodynamically lifted aircraft are the rotary-wing aircraft. Here, the lift is provided by rotating aerofoils or rotors. The best-known examples are the helicopter, the autogyro and the tiltrotor aircraft (such as the V-22 Osprey). Some craft have reaction-powered rotors with gas jets at the tips but most have one or more lift rotors powered from engine-driven shafts. A further category might encompass the wing-in-ground-effect types, for example the Russian ekranoplan also nicknamed the "Caspian Sea Monster" and hovercraft; most of the latter employing a skirt and achieving limited ground or water clearance to reduce friction and achieve speeds above those achieved by boats of similar weight. A recent innovation is a completely new class of aircraft, the fan wing. This uses a fixed wing with a forced airflow produced by cylindrical fans mounted above. It is (2005) in development in the United Kingdom. And finally the flapping-wing ornithopter is a category of its own. These designs may have potential but are not yet practical.

By propulsion

ornithopter adapted as a floatplane]] Some types of aircraft, such as the balloon or glider, do not have any propulsion. Balloons drift with the wind, though normally the pilot can control the altitude either by heating the air or by releasing ballast, giving some directional control (since the wind direction changes with altitude). For gliders, takeoff takes place from a high location, or the aircraft is pulled into the air by a ground-based winch or vehicle, or towed aloft by a powered "tug" aircraft. Airships combine a balloon's buoyancy with some kind of propulsion, usually propeller driven. Until World War II, the internal combustion piston engine was virtually the only type of propulsion used for powered aircraft. (See also: Aircraft engine.) The piston engine is still used in the majority of aircraft produced, since it is efficient at the lower altitudes used by small aircraft, but the radial engine (with the cylinders arranged in a circle around the crankshaft) has largely given way to the horizontally-opposed engine (with the cylinders lined up on two sides of the crankshaft). Water cooled V engines, as used in automobiles, were common in high speed aircraft, until they were replaced by jet and turbine power. Piston engines typically operate using avgas or regular gasoline, though some new ones are being designed to operate on diesel or jet fuel. Piston engines normally become less efficient above 7,000-8,000 ft (2100-2400 m) above sea level because there is less oxygen available for combustion; to solve that problem, some piston engines have mechanically powered compressors (blowers) or turbine-powered turbochargers or turbonormalizers that compress the air before feeding it into the engine; these piston engines can often operate efficiently at 20,000 ft (6100 m) above sea level or higher, altitudes that require the use of supplemental oxygen or cabin pressurisation. During the forties and especially following the 1973 energy crisis, development work was done on propellers with swept tips or even scimitar-shaped blades for use in high-speed commercial and military transports. Pressurised aircraft, however, are more likely to use the turbine engine, since it is naturally efficient at higher altitudes and can operate above 40,000 ft. Helicopters also typically use turbine engines. In addition to turbine engines like the turboprop and turbojet, other types of high-altitude, high-performance engines have included the ramjet and the pulse jet. Rocket aircrafts have occasionally been experimented with. They are restricted to rather specialised niches, such as spaceflight, where no oxygen is available for combustion (rockets carry their own oxygen).

By usage

The major distinction in aircraft usage is between military aviation, which includes all uses of aircraft for military purposes (such as combat, patrolling, search and rescue, reconnaissance, transport, and training), and civil aviation, which includes all uses of aircraft for non-military purposes.
Military aircraft
Combat aircraft like fighters or bombers represent only a minority of the category. Many civil aircraft have been produced in separate models for military use, such as the civil Douglas DC-3 airliner, which became the military C-47/C-53/R4D transport in the U.S. military and the Dakota in Britain and the Commonwealth. Even the little fabric-covered two-seater Piper J3 Cub had a military version, the L-4 liaison, observation and trainer aircraft. In the past, gliders and balloons have also been used as military aircraft; for example, balloons were used for observation during the American Civil War and World War I, and cargo gliders were used during World War II to land intruding German troops in many European countries in the 1940/42 period, while Allied troops used them in Europe after D-Day . Combat aircraft themselves, though used a handful of times for reconnaissance and surveillance during the Italo-Turkish War, did not come into widespread use until the Balkan War when first air-dropped bomb was invented and widely used by Bulgarian air force against Turkey. During World War I many types of aircraft were adapted for attacking the ground or enemy vehicles/ships/guns/aircraft, and the first aircraft designed as bombers were born. In order to prevent the enemy from bombing, fighter aircraft were developed to intercept and shoot down enemy aircraft. Tankers were developed after World War II to refuel other aircraft in mid-air, thus increasing their operational range. By the time of the Vietnam War, helicopters had come into widespread military use, especially for transporting and supporting ground troops.
Civil aviation
helicopter]] Civil aviation includes both scheduled airline flights and general aviation, a catch-all covering other kinds of private and commercial use. The vast majority of flights flown around the world each day belong to the general aviation category, ranging from recreational balloon flying to civilian flight training to business trips to firefighting to medevac flights to cargo transportation on freight aircraft. Within general aviation, the major distinction is between private flights (where the pilot is not paid for time or expenses) and commercial flights (where the pilot is paid by a customer or employer). Private pilots use aircraft primarily for personal travel, business travel, or recreation. Usually these private pilots own their own aircraft and take out loans from banks or specialized lenders to purchase them. Commercial general aviation pilots use aircraft for a wide range of tasks, such as flight training, pipeline surveying, passenger and freight transport, policing, crop dusting, and medical transport (medevac). Piston-powered propeller aircraft (single-engine or twin-engine) are especially common for both private and commercial general aviation, but even private pilots occasionally own and operate helicopters like the Bell JetRanger or turboprops like the Beechcraft King Air. Business jets are typically flown by commercial pilots, although there is a new generation of small jets arriving soon for private pilots.

Related topics


- List of aircraft by category
- List of aircraft by date and usage category
- List of civil aircraft
- List of helicopter models
- List of military aircraft
- List of World War II jet aircraft
- List of aircraft engines
- List of aircraft engine manufacturers (alphabetical)
- Aerial refuelling
- Aeronautics
- Aircraft carrier
- Aircraft spotting
- Airline call signs
- Airliner
- Air safety
- Aviation
- Contrail
- First flying machine
- Flight controls
- Flight instruments
- Gliding
- Lifting body
- List of early flying machines
- Model aircraft
- Mobile phones on aircraft
- Spacecraft propulsion
- Spacecraft
- Steam aircraft
- Successful aircraft types
- Undercarriage
- Wright brothers
- List of aviation, aerospace and aeronautical terms

External links

History
- [http://www.nasm.si.edu/ Smithsonian Air and Space Museum] - Excellent online collection with a particular focus on history of aircraft and spacecraft
- [http://invention.psychology.msstate.edu/Tale_of_Airplane/taleplane.html Virtual Museum]
- [http://www.centennialofflight.gov/essay/Prehistory/PH-OV.htm Prehistory of Powered Flight]
- [http://www.hq.nasa.gov/office/pao/History/SP-468/contents.htm The Evolution of Modern Aircraft (NASA)]
- [http://www.check-six.com Check-Six] - Information on historic aircraft crashes including the X-15 and Flying Wing
- [http://www.anythingplanes.net Aircraft community ] Information
- [http://www.aircraft-info.net Aircraft-Info.net]
- [http://www.airliners.net/info/ Airliners.net]
- [http://www.HomebuiltAircraft.com HomebuiltAircraft.com]- Information Portal about Homebuilt Aircraft
- [http://www.DefenceTalk.com Airforces ]
- [http://www.challoner.com/aviation/index.html Series of Photo Essays on British Aviation]
- [http://www.usenet-replayer.com/webrings/aviation.html Pictures of Aircraft] published on Usenet
- [http://www.sulman4paf.tk PAF Procedures and Information, Wallpapers, Picture Gallery, Updated News] Patents
- US[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=821393.WKU.&OS=PN/821393&RS=PN/821393 821393] -- Flying machine -- O. & W. Wright Category:Aircraft Category:Aviation zh-min-nan:Hui-hêng-ki ko:항공기 ms:Pesawat udara ja:航空機 simple:Aircraft

SSBN

A ballistic missile submarine is a submarine equipped to launch ballistic missiles (SLBMs), typically nuclear-armed and long range (ICBM). Some early models had to surface to launch; all modern ones launch while submerged at depths usually less than 50 meters. Ballistic missile submarines differ from attack submarines and cruise missile submarines; while attack submarines specialize in combat with other naval vessels (including enemy submarines and merchant shipping), and cruise missile submarines are designed to attack large warships and tactical targets on land, the primary mission of the ballistic missile is nuclear deterrence. Accordingly, the mission profile of a ballistic missile submarine concentrates on remaining undetected, rather than aggressively pursuing other vessels. SSBN is the United States Navy's hull classification symbol for a fleet ballistic nuclear missile submarine. The SS denotes a (ship) submarine, the B denotes ballistic missile capability, and the N denotes nuclear power. In American naval slang, ballistic missile submarines are referred to as "boomers." The French Navy strategic nuclear submarines are labeled "SNLE", for Sous-marin Nucléaire Lanceur d'Engins ("Device-Launching Nuclear Submarine"). Many navies use two crews per boat to maximize patrol time. In the U.S. Navy, the two crews are called blue crew and gold crew. In the Royal Navy, the two crews are called port crew and starboard crew. The French Navy uses blue and red for its crews.

SSBN classes (in service)


- France
  - Le Triomphant class
- Russian Federation
  - Typhoon class
  - Delta class
- United States
  - Ohio class
- United Kingdom
  - Vanguard class
- China: see China's sea-based ICBMs.

SSBN classes (retired)


- France
  - Redoutable class submarine
- United Kingdom
  - Resolution class submarine
- United States
  - George Washington class submarine
  - Ethan Allen class submarine
  - Lafayette class submarine
  - James Madison class submarine
  - Benjamin Franklin class submarine

SSB classes (mostly retired)

SSB means diesel propelled ballistic missile submarine, e.g. the Golf class submarine. China built a single modified example in 1966 which is apparently still in service.

See also


- SSN - attack submarine
- SSGN - cruise missile submarine
- SLBM Category:United States Navy submarines Category:Ballistic missile submarines

Attack submarine

:For the sandwich, see Submarine sandwich for the patent type see Submarine patent Submarine patent nuclear ballistic missile (SSBN) submarine]] Submarine patent diesel-electric hunter-killer (SSK) submarine]] Submarine patent diesel-electric guided missile (SSG) submarine]] Submarine patent nuclear attack (SSN) submarine]] A submarine is a specialized watercraft that can operate underwater. Most major navies use submarines. Submarines are also used for marine and freshwater science and for work at depths too great for human divers. Nuclear powered submarines and other large submarines are classed as ships, but are customarily referred to by their crews as "boats". The term U-Boat is sometimes used in English, this comes from the German word for submarine, 'U-Boot', itself an abbreviation for Unterseeboot. Modern attack submarines are known as fast attack subs and generally operate in the hunter-killer role. Large subs carrying strategic nuclear missiles are known as "boomers" in the United States Navy, and "bombers" in the Royal Navy. Submarines encompass one of the largest ranges in capabilities of any vessel. They range from a small two-man vessel that can examine the sea floor for few hours; to underground subsea-level houses built in the 1950s as part of a "Sharing the Ocean" fund; to the Typhoon class, which can remain submerged for months and carry enough nuclear missiles to destroy hundreds of cities. There are a wide variety of specialized submarines: rescue submarines like the DSRV or recently rescued AS-28, or tiny one-person human powered subs intended for competitions between universities. The word submarine was originally an adjective meaning "under the sea". That is why some firms who make diving gear but not parts for submarines, called their work "submarine engineering". "Submarine" as a noun meaning a submersible craft originated as short for "submarine boat"; older books (for example Twenty Thousand Leagues Under the Sea) always call it a "submarine boat". Another underwater device for use in underwater exploration, salvage, and rescue is the diving bell.

Non-military submarines and submersibles

Non-military submarines are usually much smaller than military submarines. Tourist submarines work mainly in tropical resort areas or other areas with clear water and good visibility. In 1996, there were over fifty private submarines operating around the world, serving approximately two million passengers that year. Most of these submarines carried between twenty-five and fifty passengers at a time and sometimes made ten or more dives per day. In design, these submarines borrow mainly from research subs, having large portholes f