Date: 08 Feb 99 02:49:10 From: firstname.lastname@example.org (Stephen H. Westin) Organization: Cornell University Program of Computer Graphics References: 1
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"G.J.Carty" <G.J.Carty@durham.ac.uk> writes: > I've noticed that the Kuznetsov NK-86 turbojet (as used in the Il-86 - > the only turbojet-engined widebody) has 28000 lb thrust; similar to the > non-afterburning thrust of the original NK-144 engine, used in the > Tu-144 (later the NK-144 was 33000 lb basic, with 44000 lb in 'burner). > I'm wondering, was the NK-86 just a non-afterburning NK-144, or was it a > different design of engine altogether? But the NK-144 isn't a turbojet; it's a low-bypass turbofan. This was one of the mystifying designe decisions in the design of the Tu-144; the bypass presumably made the engines more efficient at low speeds, but sacrificed high-speed efficiency to do so. -- -Stephen H. Westin Any information or opinions in this message are mine: they do not represent the position of Cornell University or any of its sponsors.