A Jabiru UL-450 was being flown with two pilots onboard. The pilot in the left seat had 28 hours on type and the pilot in the right seat had not flown the type before. The approach to the runway was flown by the pilot in the right seat. During the approach he decided the aircraft was not stable so elected to go around. During the go-around the aircraft descended and drifted to the left. The aircraft collided with a stationary glider which was waiting to launch. One of the occupants of G-ROYC sustained a minor injury; the glider pilot was uninjured.
It is likely that the aircraft did not climb due to the combination of the inadvertent retraction of the flaps, a brief delay in the application of full power and the aircraft being slightly above the maximum takeoff weight.
The British Gliding Association and the gliding club have taken safety action to ensure the risk of ground collisions is minimised.