RE: New Decathlons From Seagull 91 and 120 Size!
Have quite a few flights on the RCGF 20 powered Decathlon 120 now, and the "nose heavy" tendency noted during the test flying stages has proven to be very noticeable now that it's dialed in a little more and I'm pushing the plane into more aerobatic flight. I'm saying it's nose heavy as there's a major trim difference inverted vs. upright, apparent even just by looking at the elevators, which are very obviously set to help hold the nose of the plane up. 45 degree inverted climb out results in a plane dropping it's nose right away. The plane will knife edge easily, but that up elevator trim required for level flight REALLY becomes apparent (coupled big time!) when you roll the plane over onto it's side. Most planes will turn towards the gear when you do this, but this plane wants to turn towards the windshield big time! I put a stick of lead under the horizontal to see if that would improve things, and I think it did, but only have a couple flights on it since. It appears it still needs more? Planning on moving at least the rudder servo to the rear already.
So really, my question is have any of you made any kind of attempt to balance this plane - regardless of the suggested CG (which seems to leave the plane as described above). If so, how successful were you? Am I wasting my time?
As nose heavy as it is, still love the plane when it's flown in a scale manner. Just hoping it's capable of much more....