LOL!

I thought that bank' and myself had a good ol' discussion about induced drag! The original poster didn't even say whether or not this was for an RC model. S/He just asked a question about induced drag due to tip effect. That's all I was trying to discuss. Besides, I'm an aero engineer and love talking about theory.

And whether you guys like theory or not... I think all this negativity about theory is funny. Without theory we'd still be building hand tossed gliders and not truly understanding why they fly (or don't, for that matter).

Every wing starts with an airfoil, and there have been plenty of threads in this forum about airfoil selection. Whether you know it or not, an airfoil is a section of a 2D wing. The characteristics of a 3D wing start with those 2D characteristics. If they didn't, we wouldn't be able to predict how a wing will perform without actually testing it... and that gets expensive fast... paper and electrons are cheaper.

Besides... talk is cheap too, right? LOL!

Good weekend everyone!