scratch build.

When making a scratch build what thickness should the foam be?

Hi folks, I've been working on a little high-wing foam board plane using the remains of my Pilatus Porter - roughly 800mm wingspan. I've a flight problem that has me baffled. The plane is reasonably stable with either rudder turns or banked turns, but as soon as I apply more than a little up...

I'm want to build the ft versa wing but don't have enough money to buy it. I wanted to use the plans online to make it but was unsure how to print it. I have access:confused to a plotter so i can print the full size plans but was unsure how to print it and keep it to scale. Can anyone give me an...

Trying something a little different. Twin prop FPV bird. Reused the wing from the prev single motor plane. Borrowed the motors off the 48 plane so I'll have to re-use the wing and match it up with the FPV-1 fuselage. 7x5 static rudders and 18x5 elevator (10x3 moveable area). Sub frame...