Schleicher ASK 23 - N234NM

NM - November Mike

ASK 23 GliderSchleicher ASK 23

The ASK 23 glider is an excellent training glider. This is the first single seat glider that most new solo students transition to from the two place ASK 21 trainer.

Pilot Approval Requirements: The pilot must have sign off by an instructor and must meet Williams Soaring Operating Policy and Insurance requirements - See Pilot Information Section.

The Schleicher ASK 23 is a single-seat Club Class sailplane that was built by the German manufacturer Alexander Schleicher GmbH & Co. It was the last glider to be designed by Rudolf Kaiser. It is an early solo sailplane with docile handling, and so it was a successor to the Schleicher Ka 8 and ASK 18. It is also the single-seater counterpart of the two-seater Schleicher ASK 21 with a similar cockpit layout.

It uses glass-fibre reinforced plastic and 'honeycomb' as its main constructional materials. It has no flaps, a fixed nose wheel, a fixed main-wheel and a tail wheel. The first ASK 23 flew in October 1983.

Download the ASK23 Polar and Specifications sheet (PDF 352KB)
Download the ASK23 Flight Manual (PDF 15,075KB)

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Schleicher ASK23 Specifications


L/D Max: 34   90kph / 49 kt / 56 mph --- MinSink: 0.66 m/s / 2.17 fps / 1.29 kt -- Aspect ratio: 17.4
Span Area Empty Weight Payload Gross Weight Wing Load Water Ballast
m ft sq.m sq.ft kg lb kg lb kg lb kg/sq.m lb/sq.ft kg lb
15 49.2 12.9 138.8 240 529 120 265 360 794 27.91 5.72 0 0


The factory polar chart shows the the sink of the glider at particular speeds flown - based on standard gross weight. You should memorize your the speeds to fly and be able to quote them from memory. Where else can you find speeds to fly?

ASK 23 Polar Chart


ASK 23 Instrument PanelInstrument Panel

This ASK 23 has:


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Weight and Balance

You must be aware of the weight and balance envelope of the glider you are flying. Know how to add weights as required to stay within the correct moment.