Hi Guys,

I have a couple of these planes, the smaller version which had a 52 FS in the nose and the 91 FS version we are talking about here. I had no problems with the C of G but the plane is way overpowered with a 91 FS motor. I had a TT 91FS in mine and if you used more than about 60% power it was a pig to fly. It would do all sorts of silly things. Once the power is evened out to around 50% it flys very nicely. Does require plenty of runway to get it into the sky but flys pretty well once airborne. My opinion is that this bird would fly nicely with a 72 Saito or something similar in the front. I had the flaps set up on mine and it was only for looks I never used them or needed to use them. The flaps were just a waste of 2 servos.

I lost mine when someone came up from under me and cut me in half, but I have another 91 size in a box under the bed and a 120 size Trojan in the garage. That has a Saito 150 FS sitting next to it so when the time comes that will be the engine going in to it, now if it is overpowered with the 150FS I will cut it back to a 120FS andsee if it performs better.
As for the 91FS version if you have a 80FS or even a 72FS try that engine it may prove to be a better mix because with a 91FS this bird is grossly overpowered.

Delta