Fokker test flew the two-seater solo after it was assembled at the Wasserkuppe, revealing poor directional stability. Rudders with greater area were fitted to rectify this, which allowed competition flying and passenger flights to commence; Fokker soon soared the biplane two-seater for thirteen minutes with a passenger aboard. This was the world's first passenger flight using a
glider aircraft. After the Rhön competition Fokker moved on to Itford Hill, on the South Downs in Kent, for the
Daily Mail gliding competition, held from 16 to 21 October 1922, where various prizes were offered. Fokker soared his biplane glider for 37 minutes to claim the prize for the longest duration over 30 minutes, achieving a flight of 37 minutes, which was soon eclipsed by
Captain Olley flying the same aircraft for a duration of 49 minutes. ==Variants==