Milairjunkie wrote: | Did the Tu-91 really have twin turboprops???? All references I can find suggest a single engine? |
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My main reference for this was 'Soviet X-Planes - Experimental and Prototype Aircraft 1931 to 1989' by Yefim Gordon and Bill Sweetman, published by Motorbooks International in 1992. They say it had two 5000-hp range Kusnetsov NK-6s. Checking on the web, I've found three sources, all of which say it had a single turboprop, but all of which differ in detail. Not mpossible that it might have been a coupled turboprop, like the Armstrong Whitworth Double Mamba, or the Bristol Coupled Proteus, with two separate sets of compressors, combustion chambers and turbines turning a single (or two co-axial) shaft. Apologies if this caused any confusion. Cheers, Chris. |