Yes i know that the engine was too much for the plane, but i have it... and i try to use it instead to buy another engine.

I will try this week-end maybe to make it take off. But for sure, now, the 2 pack in series are far better now. But i don't think i will be able to take off..
it's the 4130-20, with the -16 there were not problem. Of course a 2820 can be the best choice. But again, i don't really whant to buy it now. But i will try and post my result.