Author 'Gilbair' (Id 221243 ) : Glider return to competition on the point of land on the aerodrome of Montricher (Switzerland). We see his shadow on the track.
The air-brakes and the landing gear are released, the device will empty its ballast of water, which explains the trail of droplets that follows it and makes it look like a jet plane !
Photo taken with a camera Pentax K5 with a zoom lens 18-200 mm, F-9. 5, 1/350 sec, focal length 50 mm.