Bill, as far as the 108 goes, give it a whirl, keeping in mind that this model is not designed for speed. With 3D applications, all these manuvers are performed right around stall speed. As far as right thrust goes, it is not built in. There was a poor attempt by the GP engineers to provide a small offset in the vertical stab but so far with the powerfull engines everyone is running its not enough. You will have to add right thrust. I'm waiting for thrust plates for this application. washers work, but will compress into the wood. The plates come in 1,2 and 3 degrees eliminating the guesswork. I will go one step further and see if it requires any up/down thrust angle as well.

Raj, since you have been following our little forum then you have reviewed our discussion of the tank on the CG. Being an old UCD hand is there anything you would like to add about how the plane responds to the tank on the CG and perhaps methods of balance. Thanks, Joe