Located in the city of Detroit (Detroit Mfrs. Syndicate). Sometimes confused with Detroit Aero. In 1910, it built the 20-30 hp and 30-40 hp Aero engines designed by Fred Weinberg. The 20-30 hp engine had a displacement of 237.5 cu.in.

From Appendix 10: There is a constant confusion between "Detroit Airplane Co." and "Detroit Aeronautic Construction Co." and besides that the Detroit Airplane Co. was involved in the construction of the "Detroit Aero" engines.

"Detroit Aeroplane Co. ad"

-The other engine of the production line was the 30-40 hp, somewhat larger but with the same architecture.

"Somewhat more powerful, the 30-40 hp"

"Detroit Aeroplane production line in 1911"