Argus As 8 – air-cooled, 4-inline Argus As 10 air-cooled, inverted V-8 engine Argus As 401 eight-cylinder Argus As 402 Argus As 410 12-cylinder, air-cooled Argus As 411 larger development of the 410 Argus As 412 H-block development of the 410 Argus As 413