DREIDEKKER. After the full-scale Fokker Dr. I (N5505V) in April Photo Review comes this 3/4-scale version, called the Sorrell Triplane after its owner-constructor who flies it from a private airstrip at Rochester (Washington State). Painted blood red, with silver rudder and white lettering, the Sorrell Triplane has a span of approximately 17 ft. 8 in., and is powered by a 65-h.p. Continental A65 flat-four. Perhaps triplanes are going to come back into vogue again?