John, I was referring to his original list of engines, they all seemed heavy. I'm saying that the trade off with a more heavy, and more powerful engine is wing loading. Also earlier I stated that I too would use my YS 63 on that ARF (See post #8). The YS 63 is about 8 ounces lighter than the OS 61FX so there is no trade off in wing loading with the YS. But thanks for the info.
ORIGINAL: JohnVH
ORIGINAL: JoeAirPort
Nothing wrong with over-powering, you just have to live with the high wing loading as a trade off.
Not always true.... compare the weights of the engine, and put the largest and lightest you can on it.. some of the smaller 2 strokes weigh the same as a larger 4
Also, I seen a video of the katana with a YS63 and it was awesome... so mine is getting a saito .72!