General Electric J47

J47
Preserved General Electric J47
Type	Turbojet
Manufacturer	General Electric
First run	21 June 1947
Major applications	Boeing B-47 Stratojet Convair B-36 Peacemaker North American B-45 Tornado North American F-86 Sabre
Number built	36,500
Developed from	General Electric J35
Developed into	General Electric J73

The General Electric J47 turbojet (GE company designation TG-190) was developed by General Electric from its earlier J35.^[1] It first flew in May 1948. The J47 was the first axial-flow turbojet approved for commercial use in the United States. It was used in many types of aircraft, and more than 30,000 were manufactured before production ceased in 1956. It saw continued service in the US military until 1978. Packard built 3,025 of the engines under license.

The J47's greatest advantage, as advertised, was its array of features which were unavailable and unprecedented in any other engine. It was advertised as an 'all-weather engine' due to its anti-icing systems which allowed it to perform at high altitudes and extreme temperatures where other aircraft's performance suffered. Its development began without an explicit need for it, although this design was quickly purchased by the military for its many potential benefits.^[2]

In 1978, J47s were formally withdrawn from active military duty when the Air National Guard retired the jet-boosted KC-97Js.^[3] Despite this, these engines are still extensively utilized in F-86 Sabre jets owned by civilians, making them a common sight at air shows.