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Help with Power Curves for Steady Level Flight 
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#1
Dec3011, 05:22 PM

P: 2

Hello all, first time poster here so please go easy :)
I have to create a set of Power curves (Power Required and Power Available vs. Velocity) for a propellerdriven Ryan Navion A aircraft at intervals of 1000m. My question to you is this, due to the fact that the aircraft is in steady level flight will the Power AVAILABLE curve simply be a flat line at: P(av)=ηP where η=propeller efficiency (0.8) and P=engine power variation with altitude ... or is it more complicated than this? When I think about it i'd assume that the power available would vary slightly with velocity but I am just not so sure. Any corrections/help/advice would be appreciated! Happy New Year. 


#2
Jan212, 05:43 PM

P: 2

Thanks guys, really helpful



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