These engines were designed by David L. Herman in Detroit, MI.

-In 1910, he made an 8-cylinder V-engine that gave 45 hp, and one that gave 70 hp with the same architecture. Both engines were water cooled.

-The cylinders were in pairs and with L-shape combustion chambers.

“Herman aerial motor”

-It delivered 45 hp at 1,800 rpm

From Appendix 10: The V8 engine we illustrated in the main text, was made in two sizes, as indicated in the ad below.

“D. L. Herman ad”