The Bensen B-7 was a small rotor kite developed by Igor Bensen in the United States in the 1950s and marketed for home building.
The Hiller ROE Rotorcycle was a single seat ultralight helicopter designed in 1953 for a military requirement.
HMS Gallant (H59) was a G-class destroyer, built for the Royal Navy in the mid-1930s.
ICD-10 is an international statistical classification used in health care and related industries.
The Sikorsky S-69 (military designation XH-59) is an experimental co-axial compound helicopter developed by Sikorsky Aircraft as the demonstrator of the Advancing Blade Concept (ABC) under US Army and NASA funding.