Henry Preiss Explained

Henry Preiss is a sailplane designer. He was a longtime friend and neighbor of Richard Schreder and they worked together to develop and build several examples each of the RHJ-7^[1] and RHJ-8 two-seat sailplanes, and also the RHJ-9 and RHJ-10. Preiss also finished the Schreder HP-19.^{[2] [3]}

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.

Notes and References

1. http://www.sailplanedirectory.com/PlaneDetails.cfm?planeID=270 Sailplane directory
2. Rogers, Bennett: 1974 Sailplane Directory, Soaring Magazine, page 36. Soaring Society of America, August 1974. USPS 499-920
3. Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 57-58. Soaring Society of America, November 1983. USPS 499-920