.jpg)
Community hub
Recent from talks
Knowledge base stats:
Talk channels stats:
Members stats:
Lockheed P-80 Shooting Star
The Lockheed P-80 Shooting Star is the first jet fighter used operationally by the United States Army Air Forces (USAAF) during World War II. Designed and built by Lockheed in 1943 and delivered just 143 days from the start of design, two pre-production models saw limited service in Italy just before the end of World War II but no combat. Designed with straight wings, the type saw extensive combat in Korea with the United States Air Force (USAF) as the F-80.
America's first successful turbojet-powered combat aircraft, it was soon outclassed with the appearance of the swept-wing transonic MiG-15 and was quickly replaced in the air superiority role by the transonic F-86 Sabre. The F-94 Starfire, an all-weather interceptor using the same airframe, also saw Korean War service. The closely related T-33 Shooting Star trainer remained in service with the U.S. Air Force and Navy well into the 1980s, with the last NT-33 variant not retired until April 1997.
The XP-80 had a conventional all-metal airframe, with a slim low wing and tricycle landing gear. Like most early jets designed during World War II—and before the Allies captured German research data that confirmed the speed advantages of swept-wings—the XP-80 had straight wings, similar to previous propeller-driven fighters. It was the first operational jet fighter to have its engine buried in the fuselage, a format previously used in the pioneering German Heinkel He 178 V1 of 1939, and the later British Gloster E.28/39 demonstrator of 1941. Other early jets generally had two engines because of their limited power, these being mounted in external nacelles for easier maintenance. With the advent of more powerful British jet engines, a single fuselage-mounted engine was more effective, and this configuration was used by nearly all subsequent fighter aircraft.[citation needed]
Lockheed was the first American aircraft company to start work on a jet-powered aircraft, beginning work on the L-133 in 1939. The L-133 eventually developed into an extremely advanced design, including futuristic features such as canard forewings and a blended wing body, but when Lockheed presented the design to the Army Air Force, it was rejected as being technologically unfeasible. Instead the USAAF concentrated development around the much less radical Bell P-59 Airacomet, which first flew in October 1942. It quickly became obvious, however, that the P-59's performance was only marginally superior to current piston engined fighters. Bell performed preliminary work revising the P-59 with a low wing and a single fuselage-mounted engine, to be designated XP-59B, but by this time the Bell factory was swamped with other work so the USAAF transferred the project to Lockheed.
The impetus for development of the P-80 was the discovery by Allied intelligence of the Me 262 in spring 1943, which had made only test flights of its own first quartet (the V1 through V4 airframes) of design prototypes at that time, all fitted with retracting tailwheel landing gear. After receiving documents and blueprints comprising years of British jet aircraft research, the commanding General of the Army Air Force, Henry H. Arnold, believed an airframe developed to accept the British-made Halford H-1 B "Goblin" jet engine could provide the superior performance to match the new German jets, and the Materiel Command's Wright Field research and development division tasked Lockheed to design the aircraft based on their experience with the L-133. Concept work began on the XP-80 in May 1943. Since the British turbojet was not yet delivered, Lockheed obtained its blueprint dimensions from Bell as ordered by the USAAF. Lockheed's team, consisting of 28 engineers, was led by Clarence L. "Kelly" Johnson in the same manner as the P-38 Lightning, in the same remote building with high security and greater autonomy, a continuation of Lockheed's Skunk Works style of research and development.[citation needed]
With the Germans and British clearly far ahead in development, Lockheed was pressed to develop a comparable jet as quickly as possible. Kelly Johnson submitted a design proposal in mid-June and promised that the prototype would be ready for testing in 150 days. The Skunk Works team, beginning 26 June 1943, produced the airframe in 143 days, delivering it to Muroc Army Airfield on 16 November.[citation needed]
The project was so secret that only five of the more than 130 people working on it knew that they were developing a jet aircraft, and the British engineer who delivered the Halford H1 engine was detained by the police because Lockheed officials could not vouch for him. After the engine had been mated to the airframe, foreign object damage during the first run-up destroyed the engine. The British engineer who had delivered the engine had warned Lockheed that the skin of the inlet ducts was too thin but the American engineers ignored this warning and both ducts collapsed and were sucked into the engine when at full throttle. This delayed the first flight until a second engine (the only other existing) could be delivered from Britain, de Havilland generously donating the engine intended for the prototype Vampire.
The first prototype (44-83020) was nicknamed Lulu-Belle (also known as "the Green Hornet" because of its paint scheme). Powered by the replacement Halford H1 taken from the prototype de Havilland Vampire jet fighter, it first flew on 8 January 1944, with Lockheed test pilot Milo Burcham at the controls. Following this flight, Johnson said, "It was a magnificent demonstration, our plane was a success – such a complete success that it had overcome the temporary advantage the Germans had gained from years of preliminary development on jet planes." The donated British jet engine and program data had no doubt proved invaluable. In test flights, the XP-80 eventually reached a top speed of 502 mph (808 km/h; 436 kn) at 20,480 ft (6,240 m), making it the first turbojet-powered USAAF aircraft to exceed 500 mph (800 km/h) in level flight, following the August 1944 record flight of 504 mph (811 km/h; 438 kn) by a special high-speed variant of the Republic P-47 Thunderbolt. Contemporary pilots, when transitioning to pioneering jets like the Shooting Star, were unused to flying at high speed without a loud reciprocating engine and had to learn to rely on the airspeed indicator.
Hub AI
Lockheed P-80 Shooting Star AI simulator
(@Lockheed P-80 Shooting Star_simulator)
Lockheed P-80 Shooting Star
The Lockheed P-80 Shooting Star is the first jet fighter used operationally by the United States Army Air Forces (USAAF) during World War II. Designed and built by Lockheed in 1943 and delivered just 143 days from the start of design, two pre-production models saw limited service in Italy just before the end of World War II but no combat. Designed with straight wings, the type saw extensive combat in Korea with the United States Air Force (USAF) as the F-80.
America's first successful turbojet-powered combat aircraft, it was soon outclassed with the appearance of the swept-wing transonic MiG-15 and was quickly replaced in the air superiority role by the transonic F-86 Sabre. The F-94 Starfire, an all-weather interceptor using the same airframe, also saw Korean War service. The closely related T-33 Shooting Star trainer remained in service with the U.S. Air Force and Navy well into the 1980s, with the last NT-33 variant not retired until April 1997.
The XP-80 had a conventional all-metal airframe, with a slim low wing and tricycle landing gear. Like most early jets designed during World War II—and before the Allies captured German research data that confirmed the speed advantages of swept-wings—the XP-80 had straight wings, similar to previous propeller-driven fighters. It was the first operational jet fighter to have its engine buried in the fuselage, a format previously used in the pioneering German Heinkel He 178 V1 of 1939, and the later British Gloster E.28/39 demonstrator of 1941. Other early jets generally had two engines because of their limited power, these being mounted in external nacelles for easier maintenance. With the advent of more powerful British jet engines, a single fuselage-mounted engine was more effective, and this configuration was used by nearly all subsequent fighter aircraft.[citation needed]
Lockheed was the first American aircraft company to start work on a jet-powered aircraft, beginning work on the L-133 in 1939. The L-133 eventually developed into an extremely advanced design, including futuristic features such as canard forewings and a blended wing body, but when Lockheed presented the design to the Army Air Force, it was rejected as being technologically unfeasible. Instead the USAAF concentrated development around the much less radical Bell P-59 Airacomet, which first flew in October 1942. It quickly became obvious, however, that the P-59's performance was only marginally superior to current piston engined fighters. Bell performed preliminary work revising the P-59 with a low wing and a single fuselage-mounted engine, to be designated XP-59B, but by this time the Bell factory was swamped with other work so the USAAF transferred the project to Lockheed.
The impetus for development of the P-80 was the discovery by Allied intelligence of the Me 262 in spring 1943, which had made only test flights of its own first quartet (the V1 through V4 airframes) of design prototypes at that time, all fitted with retracting tailwheel landing gear. After receiving documents and blueprints comprising years of British jet aircraft research, the commanding General of the Army Air Force, Henry H. Arnold, believed an airframe developed to accept the British-made Halford H-1 B "Goblin" jet engine could provide the superior performance to match the new German jets, and the Materiel Command's Wright Field research and development division tasked Lockheed to design the aircraft based on their experience with the L-133. Concept work began on the XP-80 in May 1943. Since the British turbojet was not yet delivered, Lockheed obtained its blueprint dimensions from Bell as ordered by the USAAF. Lockheed's team, consisting of 28 engineers, was led by Clarence L. "Kelly" Johnson in the same manner as the P-38 Lightning, in the same remote building with high security and greater autonomy, a continuation of Lockheed's Skunk Works style of research and development.[citation needed]
With the Germans and British clearly far ahead in development, Lockheed was pressed to develop a comparable jet as quickly as possible. Kelly Johnson submitted a design proposal in mid-June and promised that the prototype would be ready for testing in 150 days. The Skunk Works team, beginning 26 June 1943, produced the airframe in 143 days, delivering it to Muroc Army Airfield on 16 November.[citation needed]
The project was so secret that only five of the more than 130 people working on it knew that they were developing a jet aircraft, and the British engineer who delivered the Halford H1 engine was detained by the police because Lockheed officials could not vouch for him. After the engine had been mated to the airframe, foreign object damage during the first run-up destroyed the engine. The British engineer who had delivered the engine had warned Lockheed that the skin of the inlet ducts was too thin but the American engineers ignored this warning and both ducts collapsed and were sucked into the engine when at full throttle. This delayed the first flight until a second engine (the only other existing) could be delivered from Britain, de Havilland generously donating the engine intended for the prototype Vampire.
The first prototype (44-83020) was nicknamed Lulu-Belle (also known as "the Green Hornet" because of its paint scheme). Powered by the replacement Halford H1 taken from the prototype de Havilland Vampire jet fighter, it first flew on 8 January 1944, with Lockheed test pilot Milo Burcham at the controls. Following this flight, Johnson said, "It was a magnificent demonstration, our plane was a success – such a complete success that it had overcome the temporary advantage the Germans had gained from years of preliminary development on jet planes." The donated British jet engine and program data had no doubt proved invaluable. In test flights, the XP-80 eventually reached a top speed of 502 mph (808 km/h; 436 kn) at 20,480 ft (6,240 m), making it the first turbojet-powered USAAF aircraft to exceed 500 mph (800 km/h) in level flight, following the August 1944 record flight of 504 mph (811 km/h; 438 kn) by a special high-speed variant of the Republic P-47 Thunderbolt. Contemporary pilots, when transitioning to pioneering jets like the Shooting Star, were unused to flying at high speed without a loud reciprocating engine and had to learn to rely on the airspeed indicator.