Henry Preiss is a

sailplane A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding (also called soaring). This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude. Sailplan ...

designer. He was a longtime friend and neighbor of

Richard Schreder Richard E. Schreder (25 September 1915 – 2 August 2002) was an American naval aviator and sailplane developer, responsible for design and development of the HP/RS-series kit sailplanes marketed from 1962 until about 1982. Schreder also fou ...

and they worked together to develop and build several examples each of the RHJ-7Sailplane directory
and RHJ-8 two-seat sailplanes, and also the RHJ-9 and RHJ-10. Preiss also finished the Schreder HP-19.Rogers, Bennett: ''1974 Sailplane Directory, Soaring Magazine'', page 36. Soaring Society of America, August 1974. USPS 499-920Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 57-58. Soaring Society of America, November 1983. USPS 499-920 The RHJ sailplanes were developed on-the-fly; neither Preiss nor Schreder kept detailed plans or design drawings, and made only what sketches were necessary for the basic engineering validation of the structure.

References

American aerospace engineers Living people Year of birth missing (living people) {{aviation-bio-stub