ORIGINAL: pimmnz
I'm not so sure about the attributes of the so called `Diamond' stabiliser. I fly an Astro Hog, Orion, Taurus, Concord and Superstar, all with what you would call a `diamond' tail section and I have yet to detect any `soft neutral' effect. This in comparison with Nimbus, Perigee, Atlas, Super Kaos and Curare with the `standard' symmetric section. Perhaps you are confusing this with the `negative expo' effect of rotary servo outputs...
Evan.
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No, I'm not confusing it at all. I'm merely passing on the theory that was published in the model mags at that time. I have never flown a diamond airfoil shaped stabilizer equipped model myself. But even if I had and still felt the same way - you would be entitled to your opinion, even if opposite of mine.
You may be correct in its true effectiveness/lack of effectiveness. I have no first hand, empirical knowledge. But the mags were full of talk about this feature in the late Sixties thru Seventy.
Gregg: You are lucky to have met Jim Kirkland. I never had the opportunity. Even though I was about 22 years old at the time and a little old for having modeling heroes, Jim Kirkland was as close as anyone could come to be one - til Joe Bridi came on the scene. I rank them equally. <G>
Ed Cregger