Originally posted by seanychen
Ummm, The H9 Cap 73" has a worse tail heavy problem than the Creek planes. I actually crashed my H9 Cap due to tail-heaviness right after I moved the elevator servos rear; it flew great with the servos up front. Also, the H9 Cap is heavier, thus needs the Moki power....
I had forgotten that that was the reason I got the Moki in the first place. I had a used Cap in the past and the previous owner had an ST-2300, close to the OS FX in weight, on it. He had more than a half pound of weight in the nose. I put an ST-3000, close to the Moki in weight, on it and ended up with a nose-heavy airplane, even after removing the half pound of weight. I calculated that the forward position of the 4 servos, when moved to their normal mid-deck position will bring the plane almost to good CG with the Moki on the nose. Thanks for reminding me.
Back to my original question: If I install the servos in the tail of the Sukhoi and mount the OS FX 1.60 in the nose where is my CG going to be and how much, if any, weight will it need to correct?