Hi all,

I've had a ripmax Trainer 40 for over 2 years now and want to try and explore the flight envelope to the max.
I'm on a tight budget and was thinking of making some performance enhancing upgrades instead of buying a new frame.

i'm mainly looking for vertical/aerobatic performance out of the trainer over the sedate machine its designed to be.
I'm just experimenting to see whether you can actually make a trainer go near unlimited vertical on a .42 size.

I have a thunder Tiger 42 up front and it's been swinging a 11x7 prop (APC).

Was wondering whether putting a 12x6 would be viable on this engine or would an 11x4 be better?
perhaps someone could even explain the best type if i've got it wrong?

I know the "trainer" is designed to have alot of drag but surely theres a way?


o btw - theres the link for the model http://ripmax.com/item.asp?itemid=A-...tegory=010-010