DG-300 spins from landing turn during outlanding

A pilot was seriously injured when his DG-300 stalled in a low base-to-final turn during his first solo outlanding, spun and struck moorland; aircraft substantially damaged. Released at ~2,400 m MSL in weak, gusty thermals, the pilot could not hold altitude and elected to outland near Biberbrugg after witnesses noted low airspeed in ridge circles. He turned right from downwind to final at ~100 m AGL, dropped over the right wing through ~2 rotations, and pulled level just before impact. Pilot had 129 h total, 43 h on type, no prior solo outlanding; cause was low airspeed in the landing turn in gusty conditions, approach tactics contributing.

1. Released over Alptal at 2,400 m MSL: The pilot launched from Hausen a/A and released over the Alptal at 2,300-2,400 m MSL for a soaring flight in the area, in weak thermal conditions with patchy gusts.
2. Weak thermals; could not hold altitude: Unable to hold altitude after release, the pilot tried several areas without finding lift; a ridge crossing looked unfeasible, so he diverted to moorland west of Biberbrugg.
3. Low ridge circling near stall speed: Witnesses observed the glider circling several elongated turns near the Höhronen at low altitude and very low airspeed, seemingly always close to stall; the pilot elected to outland nearby.
4. First solo outlanding; no base leg: With no prior solo outlanding experience, the pilot approached between two power lines from the west and turned right from downwind directly to final without a base leg at about 100 m AGL.
5. Right wing drops; ~2 rotations: The glider abruptly dropped over the right wing in the landing turn and entered a spin or spin-like state for about two rotations; the CG was within limits and no defects were found.
6. Levelled before soft-moor impact: The pilot pulled up and flattened the trajectory; the aircraft struck the soft moor near-horizontally and stopped heading northwest, substantially damaged, from low airspeed in the turn.