ORIGINAL: rcflyer4fun
I'm running a YS 1.70 CDI with an APC 15.75 X 13 prop and Truturn spinner. I am using a Centrals Hobbies header connected to a long Hatori pipe. I could cut up my chin cowl. The way the engine sits it looks like I should have plenty of cooling. Do you think I will be alright?
You might consider not using the engine in ignition mode. The CDI module, extra battery and switch cost several ounces. If you planned on using one battery for both the RC system and the CDI, then you should be able to reduce battery capacity and weight by not using ignition. The engine runs great on glow
The following ideas will cost you some money:
The TT spinner should have a lightened backplate. It's worth the extra money. If your wheels are foam rubber types from Hanger 9 for example, you can sand (with a belt sander) foam off and shave 1/2 ounce; also, you could probably lose the pants and save a couple ounces. Prop is heavy; see if you can find a carbon alternative like a 18 or 19 x 11 2 blade. Check Mezjlik, Falcon, or PT Models. Or wood such as Xoar or Falcon
The wing panel weights are on the heavy side at 18 ozs each. This wing size normally comes in at 13-14 ozs each panel, rtf.
Good luck