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Tailless Aircraft - Reflex and other design issues
A few years ago, I built a Klingberg wing RC model. It was by assembling and studying this design that it occurred to me that a pitch-stable flying wing could be built without a reflexed airfoil if the wing had a substantial amount of wash-out, or twist -- tip angle of attack lower than root...- Fanhead
- Post #597
- Forum: Aircraft Design / Aerodynamics / New Technology
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Engine failure turn back.
For most airplanes, there is an altitude at which something like a teardrop turn back to the runway to land opposite-direction could be safely flown. Every pilot should have an idea of what that altitude is for the airplane he or she is flying, and think about it for every takeoff. Below xxx'...- Fanhead
- Post #107
- Forum: Hangar Flying - Off Topic
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Minimum Horsepower
Power required is calculated by thrust times velocity divided by a constant (to make the units right). In level flight, thrust equals drag, so HP=DV/550 where drag is in pounds and V is in Ft/sec. Where do you get D? One way to do it is dividing the weight of the machine by the L/D ratio...- Fanhead
- Post #36
- Forum: The Light Stuff - Ultralight Forum