You probably won't be able to fly it with the Super Cobalt and 20 amp ESC. That motor requires at least a 30 amp controller. I have a Mega 16/15/4 with a gearbox, inner driven, in a SR Cutie. I fly it with a 10x5 APC electric prop on 8 cell 1300 NiCd packs. It is a beauty. The ESC is am 18 amp TMM unit. It's about 2.5 to 1 gear reduction. Without a gearbox, you'll have to use a smaller prop, a 6x4 is recommended I think. Have You checked Mega's web site. There's good information there. I don't have it on this machine. It's new and I have to reconstitute my "Favorites".