Hutter H 17 / Goppinggen 5
The H 17 was designed by the Hutter brothers, Ullrich and Wolgang, in Salzburg, Austria. The ‘17’ indicated the glide ratio. They sold plan sets until they joined Schempp-Hirth, which then built about five as the Goppingen 5 with the addition of a windshield and main wheel. Many were built from plans worldwide and several are still flying. A post-war version was developed and marketed as the H 17 B with enclosed cockpit, lengthened fuselage and airbrakes. The H 17B has slightly increased span and empty and loaded weights increased about 50%. One H 17 belongs to the National Soaring Museum. The Vintage Sailplane Association has plans.
The structure was all wood, D-tube single-strut wing, plywood over simple frame fuselage, fabric cover.
Wing span: 9.69m /31.8ft
Wing area: 9.2sq.m /99sq.ft
Empty Weight: 65kg /143lb
Payload: 93kg /205lb
Gross Weight: 158kg /348lb
Wing Load: 17.2kg/sq.m / 3.52lb/sq.ft
Water Ballast: 0
L/DMax: 17 64 kph /35 kt / 40 mph
MinSink: 0.98 m/s / 3.2 fps / 1.90 kt
Aspect ratio: 10.2
Airfoil: root, Go 535 tip, NACA M-6