Hey everyone, It's been a while since I've been on here, but I need your help desperately.

A bought a Great Planes Yak 54 e-performance series plane months ago and have had a blast with it ever since.

My problems are as follows:

1. I cannot move the battery back any further to move the cg aft, it is where Great Planes recommends it, but when I wish to do 3d with the plane, it is terribly unstable. I'd hate to add weight to it.... What do I do>>????[:@]

2. I am so unsure of what prop I need for the plane...I know it sounds crazy. My setup is as follows so please look over it and make your own judgments. I am a 3d flier, and take my planes to the max, but with this plane, I need to give the plane full throttle to even try to harrier, It's like I have the wrong prop or something. The plane is very unresponsive when attempting harriers, probably because the pitch of my props is wrong, even in high rates.

Ok, here's the deal: I don't have enough thrust to do any acrobatic maneuver, hover, harrier, waterfall, nothing. AND EVERY FU**** SITE OR PHONE NUMBER I CALL TELLS ME A DIFFERENT PROP TO USE. When I finish using my plane hard for 15 min, neither the motor or lipo is even remotely warm or hot. I had an 11X 4.5 great planes prop on it, but had no thrust. I read on GreatPlanes website that I should be using a 10X5 prop, so I bought like 10 APC props of various pitches 10 inches long. Never tried them flying, seemed like they could barely pull the plane. I need the most power I can get to do 3d!!!!! PLEASE HELPPPP!!!! I REALLY APPRECIATE ANY SUGGESTIONS!!!


Ok, setup I am running:

Great planes yak 54: http://www2.towerhobbies.com/cgi-bin...?&I=LXMUW7&P=7

Lipo: http://www2.towerhobbies.com/cgi-bin...0823&search=Go

speed control: http://www2.towerhobbies.com/cgi-bin...&I=LXLBR5&P=ML

Brushless Motor: http://www2.towerhobbies.com/cgi-bin...&I=LXLWT9&P=ML

Prop: http://www2.towerhobbies.com/cgi-bin...?&I=LX1556&P=7

Radio (not that it matters): http://www2.towerhobbies.com/cgi-bin...=LXHYK7**&P=ML