yes if you look on the spec s on the 46 ax it shows that power at about 17.500 rpm. where the four stroke power was at say 10,500 .you can't get the two stroke power band on a fun fly. it would take a 8 or 9 inch prop to get there not going to happen on a u can do .


two stroke for speed four stroke for going strait up

it needs a four stroke for geting all the best out of it.

satio 100 the right choise i think that is the best engine possable for it. its perfect for it