Astir CS ground-loops when a wing catches tall grass after a crosswind landing

On a crosswind landing at Soběslav after a cross-country flight, the pilot of a G 102 Astir CS was uninjured when the right wing caught tall grass beside the runway in the landing roll and the glider swung about 90°, its tail striking the ground; it was substantially damaged. The pilot planned a long approach to RWY 36 to stop nearer the hangars, reporting a north-westerly wind of up to 4 m/s. By the pilot's account the drift was not fully corrected, and the glider touched down at the right edge with the right wing over the grass. In the roll it probably banked in a gust; the pilot, by his own account startled, made no stick or rudder input.

1. Cross-country, back to Soběslav: The pilot was aerotowed from Soběslav at 15:51 for a cross-country thermal flight and came back to the airfield as the last glider in the circuit.
2. Long approach to RWY 36: Reporting a north-westerly wind of up to 4 m/s, the pilot flew a left-hand circuit to RWY 36 and planned a long approach to stop nearer the hangars.
3. Drift to the runway's right edge: By the pilot's account the drift on final was not fully corrected, and the glider touched down at the right edge of the runway with its right wing over the grass.
4. Right wing catches tall grass: With full airbrakes and the wheel brake on, the glider probably banked in a gust during the roll, and the right wing caught taller grass beside the runway.
5. No control input in the swing: By his own account startled by a situation new to him, the pilot did not push the stick forward or use the rudder to slow the rotation.
6. 90° swing, tail strikes ground: The glider swung about 90° and its tail struck the ground, bending both tailplane mounting pins on the fin and tearing off the left wing-root fairing. The pilot was unhurt.