Silent 2 Electro stalls on steep self-launch climb — uncorrected aft stick input

A Silent 2 Electro crashed on its second self-launch of the day from Wormingford RWY 09; the glider was destroyed and the pilot seriously injured. About 12 s into the takeoff roll the propeller struck the runway. After liftoff the glider climbed shallowly then pitched steeply to ~30 m AGL on an uncorrected aft stick input; airspeed decayed to ~55 km/h. It stalled, rolled left ~90-180° and struck the ground nose-first 230 m NE of liftoff. Investigators cited the uncorrected aft stick input, with the type's light stick forces and poor stall warning contributing.

1. Self-launch from Wormingford RW09: Pilot's second self-launch of the day; aircraft is an electric self-launching ultralight glider (FES motor). Previous launch ~2 hours earlier.
2. Propeller strike on takeoff roll: ~12 s into the takeoff roll the propeller struck the runway, leaving 11 slash marks. No mechanical damage to flight controls found in subsequent inspection.
3. Light stick, poor stall warning: AAIB notes the Silent 2 Electro has low stick forces with low sensory feedback and poor stall warning indications, making the outcome more likely.
4. Uncorrected aft stick after liftoff: After liftoff the glider climbed shallowly, then pitched up steeply to about 100 ft from an uncorrected aft stick input, with distraction and workload likely contributing.
5. Stall at ~100 ft AGL: Airspeed decayed to about 30 KTAS at the climb peak; the glider stalled.
6. Incipient left roll/spin: The glider rolled left through about 90 to 180° around the vertical axis.
7. Nose-first impact 230 m NE of liftoff: The aircraft struck the ground nose-first 230 m northeast of the liftoff point and was destroyed; the pilot was seriously injured, initially life-threatening.