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The Preiss RHJ-8 is a homebuilt side-by-side two-seat flapped glider

Glider (sailplane)

A glider or sailplane is a type of glider aircraft used in the sport of gliding. Some gliders, known as motor gliders are used for gliding and soaring as well, but have engines which can, in some cases, be used for take-off or for extending a flight...

. 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

Stabilator

A stabilator is an aircraft control surface that combines the functions of an elevator and a horizontal stabilizer...

 mounted atop the vertical stabilizer

Vertical stabilizer

The vertical stabilizers, vertical stabilisers, or fins, of aircraft, missiles or bombs are typically found on the aft end of the fuselage or body, and are intended to reduce aerodynamic side slip. It is analogical to a skeg on boats and ships.On aircraft, vertical stabilizers generally point upwards...

. The undercarriage is partially retractable (modified by some builders to be fully retractable) and the large canopy swings open to the rear.

Specifications