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  • Users: gus99
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  1. gus99

    Increase in fpa as cooling drag increases on piston engines aircraft

    I'm calculating the change to Cdo as a result of increasing the engine sizes on a twin piston engined aircraft. The change to basic equivalent flat plate area is simple enough using the increase in nacelle area and the appropriate factor. However there is another consideration, ie increased...
  2. gus99

    Deriving Best range speed from Vl/d max

    Hi Guys, I'm doing some historical research on aeronautical engineering and hope someone can answer a few questions. Best range speed is always a little higher than Best glide speed for a prop aircraft due to the fact one has to take engine efficiency into account OK, as I understand it Vbr...

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