Packard Motor Car Company of Detroit was beginning testing of some aircraft design near the end of the war, and the Armistice curtailed production. Almost 3,500 LUSAC 11s were on order at one point. Packard also played an important part in the development of Liberty engines.
- Three LUSAC 21s with the 420hp Bugatti 16 engine were delivered for testing in Jan 1919, but they showed no improvement over the 11.
- Lamberton, p.8.
- W.M.Lamberton and E.F. Cheesman. Fighter Aircraft of the 1914-1918 War. Harleyford Publications Limited, 1960.