RE: My New IC 12 Jet
Last .15 pusher I built (OS .15 FP) I used Zinger 7-4's and they worked out quite well. IMHO 8-6 is way too much load for a typical .15 let alone a .12. Especially in a pusher configuration, the larger prop is going to encourage the engine to run hot on the ground, whereas the 7-4 as a lighter load should run cooler. MJD