How's this for your answer!

It is a Tiger 2 twin with 2 OS .46AXs. I used it for out thrust and differential power experiments for my column. With 8 degrees out thrust, I would fill one tank 1/3rd full and top off the other. When the one engine quit I couldn't tell the difference except for a speed difference.

I also flew it with 1,000 rpm difference in rpm between the engines and also with 1 TT .46Pro/11-6 and 1 TT .42GP/10-6. With the 8 degrees out thrust (using Ernst thrust plates) I couldn't tell any difference.

Sounds like an out thrust commercial, but that's what I used the plane for. With 2 .46s, it is slightly heavy and lands slightly fast. Nothing overly excessive, but you really can't land any twin like a trainer.

I did have to put the elevator and rudder servo in the rear for balance. No matter what engines you use, build the plane first and use the servos and battery for balance. The 2 .46s will require some rear weight.

I recall I used Hayes 11 oz tanks in the nacelles.

Drop me an e-mail if you'd like more details.