
04-24-2011, 12:30 PM
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Approved Member
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Join Date: Apr 2011
Location: Bavaria, Germany
Posts: 709
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Quote:
Originally Posted by Viper2000
Most of the aeroplanes I've flown in the sim will actually sort themselves out in cruise. However, you have to be flying at the correct speed, boost, rpm and altitude, otherwise it's not going to work.
These aeroplanes weren't designed for low altitude cruising.
Equally, cruising wasn't really a very good idea because of the time taken to get the mixture rich, prop into fine pitch/high rpm and boost to combat levels and speed to something sensible for combat.
This was learned the hard way in 1941 by Spitfire V pilots over northern France when the first Fw190s arrived on the scene.
As for actual values of torque, if we get +12 then combat power would be 1310 bhp at 3000 engine rpm. The reduction gear of the Merlin III is 0.477:1, so the prop rpm is about 1431.
bhp = torque[lb-ft]*rpm/5252
bhp*5252 = torque[lb-ft]*rpm
bhp*5252/rpm = torque[lb-ft]
Filling in the numbers I get roughly 4808 lb-ft. The maximum weight of the aeroplane is rather less than 7000 lb. Go figure...
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Hmm i can't figure... could you please explain what that means for me?
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