D-4688 built by Wolf Hirth in 1954 as a Doppelraab IV with cn 542, in 1970 converted by Rolf Strasser to Motor-Raab IV/VM with a 30hp VW 1200cc engine, to D-KALP registered Mar-1976, cancelled Aug-2010, to Deutsches Segelflugmuseum at Wasserkuppe. Probably parts of a second aircraft were used in the conversion as it also has cn 1042 which is from a Martin Neulen KG built aircraft