[1] In 1941 the United States Army Air Force decided to use secondary sources to boost aircraft production and the St. Louis Aircraft Corporation was contracted to design and build a prototype of both an eight-seat and fifteen-seat troop carrying glider.

[1] In total with the St. Louis examples, eight prototypes were ordered from different aircraft manufacturers.

Howard C. Blosom test flew the XCG-5 from Lambert Field in 1942.

[3] It proved to have serious aerodynamic flaws and structural problems causing Dutch Roll at speed.

[2] The USAAF ordered the Waco CG-3 for the eight/nine seat requirement, although only 100 were built.