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Fighter aircraft

From Academic Kids

A fighter aircraft is a military aircraft designed primarily for attacking other aircraft, as opposed to a bomber, which is designed to attack ground targets, primarily by dropping bombs. Fighters are comparatively small, fast, and highly maneuverable, and have been fitted with increasingly sophisticated tracking and weapons systems to intercept and attack other aircraft.

An , ,  and  fly in formation during an air show at Langley Air Force Base, Virginia. The formation displays four generations of Air Force aircraft
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An A-10 Thunderbolt II, F-86 Sabre, P-38 Lightning and P-51 Mustang fly in formation during an air show at Langley Air Force Base, Virginia. The formation displays four generations of Air Force aircraft

At one time, just before the opening of World War II, there were two types of fighters. Smaller single-engine planes were used as interceptors and day fighters, sometimes referred to as pursuit, while larger twin-engine designs were used as heavy fighters. The latter role proved to be unworkable, or at least not enough effort was put into them to remain useful. They then found themselves being converted to an ever-growing list of secondary roles, including strike fighters, bomber destroyers and night fighters, where their two engines gave them the increased payload needed to fill these roles.

As the performance of aircraft engines improved, notably with the jet engine in the 1960s, the need for different designs gradually disappeared. First the interceptor, bomber destroyer and night fighter designs merged into a single aircraft class. Later advances in targeting systems and the ever-increasing payloads meant that modern fighters can carry a load as large as the biggest WWII bombers, eliminating many of the bomber and ground attack aircraft roles as well. Today there are typically only two general fighter designs, smaller planes which make up the backbone of most air forces, and larger designs that operate at longer distances, sometimes referred to as interdictors.

Fighter aircraft were developed during World War I, when they were tasked with hunting down enemy reconnaissance aircraft and balloons. Engine power was so limited that they were barely able to lift themselves, but by the end of the war they had become one of the primary designs in the inventory.

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Peashooter.arp.750pix.jpg
An early fighter: the Boeing P-26 Peashooter which first flew in 1932

By the time of World War II fighter aircraft were extremely important. Control of the sky, or air superiority, had become a vital part of military doctrine, notably in the case of the blitzkrieg. The Luftwaffe's inability to destroy the British fighter squadrons during the Battle of Britain made the seaborne invasion of Britain infeasible. As engine power grew, existing designs were increasingly used in other roles, with aircraft like the Republic P-47 and Hawker Typhoon becoming celebrated attack aircraft.

Messerschmitt developed the first operational jet fighter, the Me 262, proving to be significantly faster than conventional propeller-driven aircraft. In general terms the jets were untouchable as long as the pilot properly used his speed advantage. The Me 262 could simply fly away from defending fighters, or, in the hands of a more competent pilot, it could run down opposing fighters so quickly that opponents simply didn't have time to get out of the way of its guns. The Me 262 was little used, partly due to German fuel shortages. Moreover, their speed advantage was significantly negated by Hitler's insistence that they be used primarily as fighter bombers. Nevertheless the plane clearly pointed to the end of the propeller engine for fighters. Britain's Gloster Meteor, which had been in development since the late 1930's, entered production soon after, spurred by reports of the German jets, and by the end of the war almost all work on piston powered fighters had ended.

In the 1950s, jet-engined fighter planes capable of supersonic flight were developed. Power remained low, and the designs were dedicated to specific roles. Any particular air force might deploy three or four designs, day fighters, night fighters, attack planes, etc.

These distinctions continued to erode during the 1960s, not always with good results. The McDonnell F-4 Phantom II was designed as a pure interceptor for the US Navy, but became a highly successful multi-role aircraft for the US Air Force and US Marine Corps as well as many other nations. Only a few years later, however, the General Dynamics F-111, intended as a multi-role, multi-service fighter, proved to be a near-disaster, so ineffectual as a fighter that the Navy version was abandoned, and the type eventually matured as bomber. Budgetary and political realities have increasingly forced the development of multi-role rather than specialized aircraft, but with some notable exceptions (like the F/A-18 Hornet), the demands of a good attack aircraft and a good air combat fighter remain somewhat mutually exclusive.

Current developments include reducing the radar visibility of fighters--techniques known as stealth--as well as increased range at supersonic speeds (supercruise) and better maneuverability. Ultimately, most authorities believe that the crewed fighter plane is ultimately doomed, to be replaced by Unmanned Combat Air Vehicles. However, the world's major air forces are all in the process of replacing their craft with a new generation of planes, so the transition is likely some time away yet.

Contents

Historical overview

1914-1918

Aerial combat first evolved during World War I

  • French aviator Roland Garros was decorated for his innovative machine gun attachment to his plane, which fired bullets through the propeller. Although the design eventually fell into German hands, Garros used it to shoot down three enemy aircraft.

1919-1938

1939-1945

Many of these fighters would do over 400 mph (600 km/h) in level flight, and were fast enough in a dive that they started encountering the transonic buffeting experienced near Mach 1, occasionally breaking up in flight due to the heavy load placed on an aircraft near the so-called "sound barrier". Dive brakes were developed late in WW II to minimize these problems and restore control to the pilots.

1945-1952

The first generation of production jet fighter planes had performance problems near sonic speed (similar to that of the latest piston engined fighters) until aeronautical engineer Richard Whitcomb discovered the "area rule" in 1952. Subsequent designs featured a "bottle-shaped" fuselage that improved performance. This would be an important distinction between early jet fighters (F-86, etc.) and later ones, like the F-5.

1953-present

Recently Introduced, Experimental and Proposed Future Designs

See also: Military aircraft list, Comparison of 2000s fighter aircraft

External links

resources related to international Militaries]


Lists of Aircraft | Aircraft manufacturers | Aircraft engines | Aircraft engine manufacturers

Airports | Airlines | Air forces | Aircraft weapons | Missiles | Timeline of aviation

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