ORIGINAL: abufletcher
BTW, I don't know anything about the size or weight of the Dynaflite model. But my 1/6 scale SE5a uses a Saito 56 4-stroke and that's plenty of power. So I'm wondering if a Saito 120-size 4-stroke is "too much" for your model. Would a 90-size 4-stroke be enough for your 1/5 scale model? What do the plans call for? You might also want to check on people who built the FunAero SE5a.
Cool, I just noticed that the specs call for 7 to 8 servos (single or dual elevator servos). So my elevator plan is actually an option rather than a modification.
I am beginning to think that thedesign of this model thatmakes it"fun scale" might be that to meet the IMAA legal 64" resulted inanincrease to wing span fromthe true 1/5 scaledimensions.
The plans are drawn with a OS .91 Surpass 4-Stroke. Since .91 is the bottom of the engine range and I am adding soooo much extra glue on the wing panels and the extra servo, I hate to be at the bottom of the engine range. I am not interested in ripping the wings off with speed but would rather have the extra power when needed. So my use of the Saito 1.25 (1.20)with a higher pitch prop is for power rather than speed.
I am not the greatest pilot and like to fly 3 mistakes high, but I got try to "pop it up" into a hover. !!!
(The RAF pilot will never do that, but Snoopy will try it.)