The General Electric/Allison J33 is an American centrifugal-flow jet engine, a development of the General Electric J31, enlarged to produce significantly greater thrust, starting at 4,000 lbf (18 kN) and ending at 4,600 lbf (20 kN) with an additional low-altitude boost to 5,400 lbf (24 kN) with water-alcohol injection.

Originally developed by the General Electric Co. for the Lockheed P-80 Shooting Star, the J33 engine is a direct descendant of the British Whittle engine of the early 1940s. The first J33 underwent static testing on Jan. 13, 1944, just 6 1/2 months after development began.

The J33/I-40 was General Electric's first turbojet engine of its own design, its last all-centrifugal-flow engine; as well as the last to be used in US military combat aircraft.

J33 may refer to: Allison J33, a turbojet engine; de Havilland J 33 Venom, a British fighter in service with the Swedish Air Force; Ground Equipment Facility J-33, a former radar station in California; LNER Class J33, a British steam locomotive class; Malaysia Federal Route J33; Nasal polyp; Pentagonal gyrocupolarotunda, a Johnson solid (J 33)

Feb 17, 2017 · The J33 was an outgrowth of the turbojet engine developed for aircraft use prior to and during World War II by the British in the form of the Whittle engine. The J33 powered what became known as “jet” aircraft like the P-80 Shooting Star, its …

The J33 was GE's first turbojet engine of its own design, the last all-centrifugal-flow engine built by GE, and last used in U.S. military combat aircraft. The J33 powered many first generation U.S. military jet aircraft. This engine powered the Lockheed F-80C and TF-80C.

The General Electric/Allison J33 was a development of the General Electric J31, enlarged to produce significantly greater thrust, starting at 4,000 lbf (18 kN) and ending at 4,600 lbf (20 kN) with an additional low-altitude boost to 5,400 lbf (24,000 N) with water-alcohol injection.

Two of the first GE series I-A engines, developing 1,250 lbs. Thrust each powered the Bell XP-59 in October 1942. Progressing in thrust through the series 1-14, 1-16, 1-20 of 1,400, 1600 and 2,000 lbs. The J33 began life as the 1-40 in June 1943 with …

Originally developed for the Lockheed P-80 “Shooting Star”, the J33 engine is a direct descendant of the British Whittle engine of the early 1940s. The first J33 underwent static testing on January 13, 1944, just 6 1/2 months after development began.

By Aug. 21, 1944, J-33 engines built to specifications had a probable life of 50 hours before major parts required repair or replacement.