Speed Astir flap speeds

[Skypilot]

Hi Guys,

One of our club members has just bought a beautiful Speed Astir.

Does anyone have an idea of speed to fly flap settings or did Dick Johnson ever do a test on one. Most of the other flapped gliders have some sort of recommendations for cruise vs climb

Justin

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Check to see if the Grosskinsky ring is available for the Speed Astir at Wings & Wheels (or Bells & Whistles for gliders)

http://wingsandwheels.com/grosskinsky-variable-camber-flap-ring.html

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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.

[Skypilot]

Thanks

JJ


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.

[[email protected]]

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