During World War II Geoffrey Hill served as the British Scientific Liaison Officer at the National Research Council (NRC) in Canada, where he proposed the development of a tailless research glider similar to his Pterodactyl designs.
[1] The glider was constructed predominantly from wood with a single spar built from laminated wood supporting wooden built up ribs covered with a relatively thick plywood skin, which resulted in a smooth surface with minimal distortion.
Trim in pitch was achieved by adjusting the incidence of movable wing tips using screw jacks.
For approach and landing split flaps were fitted to the wing centre section trailing edge.
Flight characteristics were found to be good with the exception of poor yaw control at low speeds.
In September 1948, the glider was towed 2,300 mi (3,701 km) across Canada to Arnprior, Ontario for further testing, completing 105 hours before the project was terminated.