Fokker's V.4 prototype of 1917 (identified by some as the V.3) had unusual cantilevered wings without bracing, the uppermost wing being attached only by cabane struts to the fuselage. The wings vibrated excessively in flight and the next prototype, the V.5, featured a single interplane strut on each side, similar to the Sopwith but with no wires called shrouds. This became the prototype of the famous Fokker Dr.I triplane of 1917, which would become immortalised as the aircraft most closely identified in popular culture with Manfred von Richthofen, the "Red Baron". Although it had a good rate of climb and was highly manoeuvrable it was not particularly fast. Following the break-up of two examples in the air the type was withdrawn from service for strengthening, and by the time it was re-introduced it was no longer at the forefront of performance.