curtisscholl
Gold Supporter
Hello the Forum
There was a thread where Chuck Beaty was told "that Airfoil won't work" because it was not "Flat Bottomed". And in the same thread stating that a symmetric Airfoil stalled quickly thus not allowing an "armstrong spin up" but flew just fine. The 8H12 profile is a reflexed foil an so are the Bensen G2 foils.
The VR7 Airfoil was experimented with, the "B" version with a tab, thus making it a Reflex Airfoil. I think Chuck said it was successful.
The NACA 25112 is a Reflex Airfoil. The Munk M15 is a reflex Airfoil but is not listed in the UUIC database as one.
The Clark YS and YH could be considered reflex foils. they have a relatively flat under camber.
My question is whether or not a symmetric Airfoil could become a reflex Airfoil by adding a tab following the lower curve upward past the tail end of the foil or gently sweeping the trailing edge up,?
And
What other Airfoils would be considered Reflex?
Inquiring minds want to know..
There was a thread where Chuck Beaty was told "that Airfoil won't work" because it was not "Flat Bottomed". And in the same thread stating that a symmetric Airfoil stalled quickly thus not allowing an "armstrong spin up" but flew just fine. The 8H12 profile is a reflexed foil an so are the Bensen G2 foils.
The VR7 Airfoil was experimented with, the "B" version with a tab, thus making it a Reflex Airfoil. I think Chuck said it was successful.
The NACA 25112 is a Reflex Airfoil. The Munk M15 is a reflex Airfoil but is not listed in the UUIC database as one.
The Clark YS and YH could be considered reflex foils. they have a relatively flat under camber.
My question is whether or not a symmetric Airfoil could become a reflex Airfoil by adding a tab following the lower curve upward past the tail end of the foil or gently sweeping the trailing edge up,?
And
What other Airfoils would be considered Reflex?
Inquiring minds want to know..
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