said

C-5 “galaxy” transport aircraft, “Arley Burke” class destroyer, UH-1 “Huey” helicopter and M1 “Abrams” main battle tank. What is the relationship between them? If you must find it, please remember that the most important relationship between them is that they all have a “flying heart”. The ancestor of Ge lm2500 marine gas turbine used by “Ali Burke” is the tf39 high bypass ratio turbofan engine of “galaxy”; The prototype of Honeywell agt1500 gas turbine driving “Abrams” is Huey’s turboshaft engine t-53. Such examples are numerous in aviation powers. If we investigate the diffusion effect of U.S. military aviation jet technology in many fields such as civil aviation, vehicles and ship manufacturing, it is not difficult to come to the conclusion that advanced jet engine technology is an important cornerstone of U.S. aviation technology advantage and even its great power status.

: Xinhuanet military, author: Si Gu, original title: “high performance military engine – the power cornerstone of America’s great power status”,

C-5 “galaxy” transport aircraft, “Arley Burke” class destroyer, UH-1 “Huey” helicopter and M1 “Abrams” main battle tank. What is the relationship between them? If you must find it, please remember that the most important relationship between them is that they all have a “flying heart”. The ancestor of Ge lm2500 marine gas turbine used by “Ali Burke” is the tf39 high bypass ratio turbofan engine of “galaxy”; The prototype of Honeywell agt1500 gas turbine driving “Abrams” is Huey’s turboshaft engine t-53. Such examples are numerous in aviation powers. If we investigate the diffusion effect of U.S. military aviation jet technology in many fields such as civil aviation, vehicles and ship manufacturing, it is not difficult to come to the conclusion that advanced jet engine technology is an important cornerstone of U.S. aviation technology advantage and even its great power status. How was the cornerstone of

built? How did American aviation jet propulsion technology come to today? What are the experiences worth summarizing and paying attention to during this period? I hope this article can find some clues.

the dawn of American jet propulsion

when the first ray of dawn of jet propulsion technology first appeared, the United States did not pay much attention, but it was not without any action. General Electric, Pratt Whitney, Lockheed and Northrop have carried out relevant research, but in the face of the tense situation of military supplies production in World War II, The US government has even forced military enterprises to slow down jet propulsion research and fully produce existing armaments. Even so, there are still people in the U.S. military who are paying close attention to jet engines. This is general Henry Arnold, commander of the U.S. Army Air Force. In early 1941, Arnold and some heads of General Electric Company learned that Britain was engaged in jet propulsion research and had developed whittle engine. Therefore, through the mediation of the U.S. government, they finally obtained whittle’s technical achievements from Britain and handed them over to the turbocharger division of General Electric for manufacturing, so as to assist the United States in developing jet fighters as soon as possible. At the same time, bell aircraft received a government order for a jet aircraft that matched the whittle engine (GE 1-A) manufactured by general electric, the later xp-59. In the research and development of jet engine, many American companies, including general electric, Pratt Whitney, Westinghouse, Lockheed, Northrop and so on, have received government funding support. However, later facts proved that xp-59, which was highly expected, had the same performance as the British “meteor” in the test. The reason was not complex – there were many problems in the centrifugal compressor of whittle engine at that time.

xp-59, which first flew in October 1942, used two Ge 1-A, with a single thrust of 1250 pounds. The later improved version used Ge 1-16 with a thrust of 1600 pounds, but its thrust still could not make the jet aircraft surpass the top piston aircraft at that time. By virtue of its alliance with Britain, the United States soon acquired the 2700 pound goblin axial-flow turbojet engine of the British de Haviland company. Relying on this power system, Lockheed developed the xp-80 meteor. During the test flight, the maximum level flight speed of xp-80 exceeded 800 kilometers per hour, which can be regarded as winning back some face for jet power. The United States originally designated Ellis Chalmers to license the manufacture of “goblins” and named it J36. However, due to many problems in imitation, the military turned to looking for alternatives. Ge seized the opportunity to improve and developed I-14, I-16 (J31) and i-18 based on the original Ge 1-A. the thrust reached 1400 pounds, 1600 pounds and 1800 pounds respectively. By the later I-40 (j33), the thrust had been increased to 4000 pounds. In order to use j33, the body of xp-80 was redesigned, and the improved prototype didn’t fly until the summer of 1944. The P-80 equipped with j33 (later renamed F-80) is a very successful first generation jet fighter, but it served too late to catch up with the tail of World War II.

many scholars believe that before the end of World War II, Germany’s jet propulsion technology research was at least five years ahead of the United States. This conclusion is not groundless, but based on the experience of many US military technicians who visited the Nazi German Jet Propulsion Research Institute after the war. It was precisely because of the leading edge of jet propulsion technology that Germany became the only country that successfully equipped and used jet fighters in World War II. Early jet engines had many problems. Although Germany took the lead, only two jet engine R & D projects were successful in the war – Junke Yumo 004 with a thrust of 2000 pounds and BMW 003 with a thrust of 1800 pounds. Relying on these advanced forces, Germany has successively developed advanced combat aircraft such as me 262, AR 234 and he 162. Many US generals were shocked when they saw Germany’s advanced jet propulsion technology research and relevant materials. This vibration directly promoted the high-level leadership of the US military. They recognized that the basis of advanced aviation equipment is the aviation power system. Since then, the United States has more firmly supported the development of advanced military jet engines than ever beforeSeize the technological commanding height of aviation equipment.

it is not too late for Americans to know, because even in 19451946, it was still the early stage of the development of jet engine.