The Grob Astir CS is usually the first single seat glider our students
fly. It is also capable of impressive cross country flights. The Astir
has light and pleasant control feel (much lighter than the Twin Astirs).
It gives no surprises in flight, and is very forgiving. The cockpit is
large and comfortable.
VH-WUN has Astir CS 77 wings (slightly swept back) which gives a larger pilot weight range.
Performance
At 338 kg: minimum sink speed is 43 knots, best glide is 1:37.3 at 52 knots
At 450 kg: minimum sink speed is 48 knots, best glide speed is 56 knots
With 4 knot thermals, an average cross country speed of 80 km/hour is possible
Specifications
Standard class: wingspan 15 m, retractable main wheel, no flaps
Wing Area: 12.4 m²
Empty weight: 282 kg
Maximum weight: 450 kg
Minimum pilot weight: 56 kg
Maximum pilot weight: 99 kg
Maximum water ballast: 100 kg
Wing loading range: 27.3 to 36.3 kg/m²
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