ORIGINAL: Electrolight
Okay thanks.
Could you answer one more question. On a plane that says it flys nicely on a 4 stroke .70 engine, could I use a 2 stroke .60 engine?
Thanks
Electrolight
Yes.
With the two stroke .60 engine, the plane would be more powerful.
A .60 2C engine ( assuming a typical non-bleed carb engine, UNLIKE the anemic O.S. LA series engines... ) is roughly the equivalent of a .84 to .90 four stroke engine. ( That's not to say you can find an engine in the .84 to .90 range... this is just explanatory... ).
A 2C OS 1.20 AX would be akin to something like a 4C 1.60 - 1.80 in terms of output power.... but the 1.20AX would consume fuel at a high rate ( well over 1.3-1.4oz/min at WOT ).