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#5
November 23rd 16, 02:02 PM
posted to rec.aviation.soaring
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Speed Astir flap speeds
On Tuesday, November 22, 2016 at 8:29:53 PM UTC-6, wrote:
I owned a Speed Astir II for many years. N162SS You actually control cruising airspeed with the flaps. You trim the plane to fly at 55 knots at 0 flaps. Then to go fast, dial in negative flaps. To go slow, dial in positive flaps. Be warned, if the ship does not have dimple tape or zig-zag strips on the wings it can have a very sharp stall when thermalling at slow airspeeds. Other than that it was a sweetheart. In the Speed Astir I flew back in Germany the flap handle was connected to a pointer in the airspeed indicator. Changing flaps let you read the associated best airspeed for that setting. Of course the ship also accelerated - slowed up nicely with moving flaps. Like DrG said: no trim changes needed. Herb 
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