Optimal V Tail Angle?

[raydon_12]

Greetings,
I'm working on a scratch building project, kind of a very cheap, very durable Predator using coroplast. Is there an Optimal angle for V tails? Or even a formula?

Thanks,
Don

[Sparky Paul]

110°.. or 115°.. or something close, +- 5 degrees....

[raydon_12]

Awesome, Thank you.

[Sail 'n Soar]

Sparky's angles are good for medium to low aspect ratio wings. There is a formula, which I don't remember and am too tired to derive this PM. I blieve the Charles River Radio Controlers has it somewhere on their site.

[raydon_12]

HHHmmmm, I'm using the wing off an old Goldberg Gentle Lady sail plane. I know my angle is too tight at the moment. I'll shoot for the 110 degree range.

Thanks