Newb question I'm sure. I suppose it's for stability and to reduce tip stall. I guess my main question is....is there a good way to calculate how big a wing tip should be given a certain wingloading or some other variable? What's big enough for good stability and stall characteristics without being too draggy? I'm just thinking there's some clever formula someone knows.Thanks

You need to be a member of diydrones to add comments!

## Replies

Area (per tiplet) = ((Span * Wing Area * Ysf) / Dcg)/2

Where: Ysf (Yaw Stability Factor) = .018 to .022

Dcg = Longitudinal distance between CG and 25% of tiplet MAC

The Ysf of my plane is 0.018 and it flies fine.

http://www.mh-aerotools.de/airfoils/flywing1.htm

http://fwcg.3dzone.dk/