oriol
Well-Known Member
Hi all!
I am sure many of fly RC airplanes. I am trying to digest all the aerodynamic theory. There are plenty of equations and many times, to be able to run those equations, you need parameters from wind tunnel data or from existing similar aircrafts.
Apart form engineering books, I also have read an RC book which keeps the theory to the bare minimum. In a practical example, after getting into some calculations, that required airfoil parameters from wind tunnel data, it ends by saying; if the airplane is balanced on 33% of the mean chord the aircraft will fly smooth.
Is it that simple? For a sport airplane, flying in uncompressible flow, with a straight wing, without taking into account the # Reynolds number, if you hang your aiplane from the roof of your hangar and the airplane is balanced on 33% of the mean chord, it will fly well?
Thanks for your inputs,
Oriol
I am sure many of fly RC airplanes. I am trying to digest all the aerodynamic theory. There are plenty of equations and many times, to be able to run those equations, you need parameters from wind tunnel data or from existing similar aircrafts.
Apart form engineering books, I also have read an RC book which keeps the theory to the bare minimum. In a practical example, after getting into some calculations, that required airfoil parameters from wind tunnel data, it ends by saying; if the airplane is balanced on 33% of the mean chord the aircraft will fly smooth.
Is it that simple? For a sport airplane, flying in uncompressible flow, with a straight wing, without taking into account the # Reynolds number, if you hang your aiplane from the roof of your hangar and the airplane is balanced on 33% of the mean chord, it will fly well?
Thanks for your inputs,
Oriol
