Dietrich DP.VIIThe Dietrich DP.VII was a 1920s German two-seat touring monoplane designed by Richard Dietrich and built by the Dietrich Flugzeugwerke in Kassel, Germany.DevelopmentThe DP.VII was a low-wing braced monoplane powered by a Haacke lightweight flat-two piston engine. A training variant the DP.VIIa had a larger Siemens-Halske radial engine.