The biplane form, compared to a monoplane (single-wing) design, inherently creates more aerodynamic drag, resulting in lower speeds. The AI-25 engine powering the M-15 generates 14.7 kilonewtons ...
The Detroiter was unique from many planes in that it made the transition from being a biplane to a monoplane, and it would go on to be the first aircraft produced by the Stinson Aircraft Company.