ORIGINAL: microsprint9
Don't worry missleman, i have reglued the firewall and added some extra reinforcement, i can't see it coming loose anymore than on a bigger plane with a 1/4" ply firewall. This engine is a GAS/GLOW conversion engine from an old weedeater, it probably needs a new ring to make full power and with the ThrustHP calculator i can tell you that my TT PRO.46 spins a 12.25x3.75 @ 12500rpm which takes 1.18hp, my 21cc turns a 16x8@7000 which is 1.285hp, so the #'s are pretty close, for ground clearance i'm going to a 13x8 3 blade prop, i will make sure i get some video of the maiden, just waiting for a few more parts from tower, should be ready in two weeks.
I just purchased this plane from tower with a 20.00 discount from tower. It will be my 8 year old's first plane. I'm going to use a Evolution 46 on the front. I always reinforce the firewall on all planes. Keep us posted on how it flies with that big bad boy on the front. Have to call you "MORE POWER TIM THE TOOL MAN". You all ready know this but remember don't stand in front or to the side when running that big bad boy.