ORIGINAL: Thumprding
I am starting an ACE 4-60 and am wondering what engine to use. The instructions say to use a 60 4 stroke or a 45-52 2 stroke. I was thinking of using a K&B 65 Sportster that I have but after looking at the size of the fuse parts I am thinking the K&B will not be able to swing a prop big enough for this plane.
Years ago I had a 4-40 that I powered with an OS 48 surpass and it flew great. For this plane I am thinking of a Magnum XL-70 or XL-91.
My plan for this plane is to build it to the plans with one exception. I am going to set the total dihedral to 1". I did this on the 4-40 and it flew great.
So will my question is will the 65 work or should I go to the 70 or 91?
Thanks
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Oddly enough, you have picked one engine, the K&B .65 two-stroke glow engine, which can and does spin larger than normal two-stroke props with ease. It would power this model just fine, as would the two four-stroke engines that you have mentioned, although the .70 is a bit light in the power arena for my tastes. However, the .70 might be just fine for your taste.
Ed Cregger
*Removed the off topic portion of my original post.
***I too love four-strokes most these days. Just wish they made some gasoline burning four-strokes that didn't cost or weigh so much. Then I wouldn't have to listen to the chain-saw sound of my larger models. At least the price of utility engines has come down, with the arrival of the Chinese gas engines.