I have a 1/4 scale extra 300. It is for the most part, 3d capable. I'm running a 1.8 c.i., 4 stroke glow engine, with an 18x6 prop.

I heard for good 3d flight, you need a thrust to weight ratio of somewhere between 2 or 3 to 1. I'm sitting somewhere around 1.5 to 1.

I'm running the biggest engine suggested by the manufacturer of the airplane. How do I go about reaching that higher ratio?