Great looking bird, maybe you could post some pics of your gear/pogos or other details. I always like to learn how others approach building. I think I read the fullsize could only turn at 15 degrees, called it the 'coffin corner', I believe. Imagine a big model will pretty much follow the same parameters. The turbine would be the perfect solution, they've come so far along. I had an old JPX 260P I thought about but it was too big with the fuel tank to try and 'shoehorn' in. John: I'm trying a 4 1/2" fan with a 700kv motor and 100A ESC I got from HobbyCity in Hong Kong. Of course, a Neu or comp would be the best. They have a lot of fans, quite cheap and a pretty big selection of motors, and have some good data on different configurations they've tried. I modified one of the motors with cooling holes, ceramic bearings and JB Weld'ed the windings. I've only run it in a test stand on 33v and easily got 5 1/2 lbs with my 3 little batteries. I just don't have the bucks to put in the eTurbax rig. I have a Turbax/Rossi .81 combo, but hate the sound of those, and think the fans are comparable.