The Preiss RHJ-8 is a homebuilt side-by-side two-seat flapped glider.
It is an evolution of the Preiss RHJ-7, which was developed from a Schreder HP-14.
The wingspan was slightly increased and the empennage was changed to a T-configuration, with the stabilator mounted atop the vertical stabilizer.
The undercarriage is partially retractable (modified by some builders to be fully retractable) and the large canopy swings open to the rear.
This article on an aircraft of the 1960s is a stub.