Pete1burn:

If you sport fly, a gas engne gets a little closer to a glow of the same size, but 3D is almost out. The Elvo 26 is a converted glow engine, I would think you cound convert it back to glow at some point with the addition of a carb. Had the Elvo on a QQ-Yak 54-73". Great running little motor. It would hang, but barely had enough to pull out of a bo-bo. What saved the combo is the great flight characteristics of the airplane. Just did not know you cant stay stable with no airspeed. RC Showcase has a number of smaller gqs engines, the RCS 140 is very strong for its size. Had the rcs on a Extra 330L, 72" and flew IMAC well, but could not hold a hover. That Extra was a heavy cheepie, so the combo was not a fair compairsion. There are others that are great eye-candy, but I don't have a clue how strong they are. Right now, the trend is to build the airframes superlight and many achieve the light goal, most sacrafrice weight for strength. A ARF should be able to stay togeather with a normal landing. A little rough landing, have seen them break in half, the usual gear pulling out etc. Not a good compromise for a sport airframe. The best compromise currently seams to be the 50CC size gasser. Good strong engines with lots of great available airframes out there. Unless you enjoy expermination, best stay within current general standards. Someone will come up with a much better gasser for us, maby not in our lifetimes. ENJOY