RE: Is 2:1 thrust/weight ratio possible?
well it is hard to say....unless you know what the system was??
it is easy to get 2:1 on foamies.... I like flying foamies because there is no worry about breaking them...
I haven't done any balsa electrics yet..I'm sure they fly great... but I would be much more nervous with them...
I fly 15 oz Fan FOld/Blucor 3D planes with a Hacker A20 and there is plenty of power......