That was an interesting trim solution for your Crosby Archie. It seems to me that apart from reducing tip stall - the tip washout in reducing the wing incidence overall has also reduced the AOA with respect to the thrust line and thus leading to a climb further from the stall.
Anyway good luck with it.
John
This model has a really high taper ratio. This led to tip stall then into power stall. The lack of decalage then made it hunt and that just helped to induce more madness.
I am far from expert on this, but with the washout, the stalls were mild and departure from stall was immediate. The added decalage then added the stability it needed. Still needs a bit more tail incidence and then very careful attention to winding technique. Bunching cost me a chance in a flyoff. I think there is room for more in the prop.as I only used a 7 x 8.4 x 1.125 on it. I have a 7 x 9 and a 7 x 10.5 that could stretch the duration if the thrust is enough to pull this bird around.
Archie Adamisin
Burlington, KY
