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All the above flying is without the SFG fins on. I am under the impression it flies even better with them on. Food for thought on future pattern designs. Maybe some slightly smaller ones for F3A.

Don
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It should perform all maneuvers requiring rudder, better, with the side force thingies on. More vertical area, closer to the AC makes rudder more effective. Rather than adding dorsal and ventral strakes on the fuse ala Nat Penton, they chose this compromise. Besides, they look pretty kool.

I suspect that many older pattern planes with pencil thin fuselages would benefit from such a modification.

MattK