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The NK-12 is definitely not driven by two turbines. The 2-turbine version was an attempt to double the power of the engine NK-4 in a simple way. In my sources the NK-4 prototypes are called engine 022. The 2-turbine engine, derived from the NK-4, is named 2TV-2F. After a Tu-95 crashed on May 11th 1953 that was equipped with 2TV-2F, the double-turbine project got cancelled and the development of the (aircraft powered by the ) NK-12 began. Unfortunately, all my sources are german-speaking. But it would be possible to use them here if desired.-- Thuringius 15:24, 26 May 2007 (UTC)
On 19 September 2008, anonymous editor 77.127.59.25 added the phrase "(actually British Nimonic)" to the last sentence in the second paragraph. I seem to recall that the leftist-infiltrated British government did some politically stupid things in the 1940s, giving the Soviets some key material technologies, without which the Soviet development of jet engines and rockets would have permanently lagged behind the West. I haven't been able to find a reference, but I may have heard this factoid some years ago while watching a History Channel documentary. If true, the parenthetic statement about Nimonic should replace the dubious claim of the engine alloys having been developed by the Soviets. — Quicksilver T @ 20:38, 1 December 2008 (UTC)
which thrust does the engine develop at zero speed? and how hot would the mixed off-stream roughly be say at a distance of 5 m from the outlet? can one roughly give a ratio of thrust to weight or specific thrust-weight for turboprop-engines? thanx? -- HilmarHansWerner ( talk) 08:48, 2 January 2016 (UTC)
This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||||
|
The NK-12 is definitely not driven by two turbines. The 2-turbine version was an attempt to double the power of the engine NK-4 in a simple way. In my sources the NK-4 prototypes are called engine 022. The 2-turbine engine, derived from the NK-4, is named 2TV-2F. After a Tu-95 crashed on May 11th 1953 that was equipped with 2TV-2F, the double-turbine project got cancelled and the development of the (aircraft powered by the ) NK-12 began. Unfortunately, all my sources are german-speaking. But it would be possible to use them here if desired.-- Thuringius 15:24, 26 May 2007 (UTC)
On 19 September 2008, anonymous editor 77.127.59.25 added the phrase "(actually British Nimonic)" to the last sentence in the second paragraph. I seem to recall that the leftist-infiltrated British government did some politically stupid things in the 1940s, giving the Soviets some key material technologies, without which the Soviet development of jet engines and rockets would have permanently lagged behind the West. I haven't been able to find a reference, but I may have heard this factoid some years ago while watching a History Channel documentary. If true, the parenthetic statement about Nimonic should replace the dubious claim of the engine alloys having been developed by the Soviets. — Quicksilver T @ 20:38, 1 December 2008 (UTC)
which thrust does the engine develop at zero speed? and how hot would the mixed off-stream roughly be say at a distance of 5 m from the outlet? can one roughly give a ratio of thrust to weight or specific thrust-weight for turboprop-engines? thanx? -- HilmarHansWerner ( talk) 08:48, 2 January 2016 (UTC)