e/Manly-Balzer engine

Information
has gloss	eng: The Manly-Balzer was the first purpose-designed aircraft engine, first built in 1901 for the Langley Aerodrome project. The engine was originally ordered from Stephen Balzer(1864-1940) in New York, but his five-cylinder radial engine design failed to live up to its claims. Langley's chief assistant, Charles Manly, then reworked the engine to produce a design that held the record for power-to-weight ratio for any engine for many years. Manly would later work for Glenn Curtiss, and was one of the teammembers who designed the famous Curtiss OX-5.
lexicalization	eng: Manly-Balzer engine
instance of	(noun) an internal-combustion engine having cylinders arranged radially around a central crankcase radial engine, rotary engine