Great news Lenwing. Its a wonderful feeling of success when they finally return to earth intact. I would try the 2820/10 on 3s lipos and an APCE prop before investing in another motor. 8 cells is really about 9v under load and 3s lipo nearer 11 volts so that should ,assuming about 25 - 28 amps at full power , give you another another 50 watts + and the prop itself adds a bit more + the model weighs less due to the lighter battery pack. I live not too far away from you so may get an opportunity to come and see it fly when and if these winds die down. Excellent, keep up the good work. Bill
PS how did you find the orientation of the gyro?
Colin. The design is similar to the "autogyro company of arizona" model setups.