Fedaykin,
According to the information in Bill Gunston’s ”The Development of Jet and Turbine Aero Engines”, I paraphrase:
The J47 has its roots in the TG-180 (to become the Allison J35), which first ran on the testbed on 21 April 1944. This engine had an 11-stage compressor handling 75 lb/s at a p.r. of 5, eight tubular chambers and a single-stage turbine, producing 4,000 lb thrust. It first flew in the XP-84, a single-engined fighter, on 28 February 1946.
The TG-180 was redesigned by General Electric to become the TG-190, which first ran on 21 June, 1947. This had a 12th compressor stage and as the J47 became by far the most important engine for the USAF. Studebaker and Packard helped to produce 36,500 of them by 1956. The biggest applications were in the B-47 and the F-86, thae latter in the afterburning version (F-86D and-K) providing 7,650 lb thrust.
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