Just getting back into R/C after MANY_MANY years and would
like to "recycle" some of my old stuff. Do you think I can use
an older .61 2 stroke OS engine on a modern flat bottom wing trainer that calls for a .40-.46. I dont think that the weight difference would be enough to cause problems as long as the c/g is correct. I realize that I'll have to go easy with the throttle
but will I be able to fly it without too much hassle?
Thanks