The LUSAC-21 (LUSAC = LePere US Army Combat) of 1919 was LUSAC-11 refitted with the 420hp Bugatti 16 engine. One prototype was converted: AS40023.
Thirty LUSAC-11s with Liberty engines and three LUSAC-21 s with Bugatti engines were built, but contracts for quantity production were cancelled at end of First World War.
Engine: 420hp Bugatti 16
Length: 27’1″
Gross wt: 4485 lb
All Aero 