The Dayton-Wright Messenger biplane was designed by Oliver Thomas in 1918. It was powered by a 37-hp DePalma V-4 engine. Dayton-Wright hoped to get an Army contract. Failing that, it was planned to sell on the civil market, but only one was built.

 

Engine: 37-hp DePalma V-4

Span: 19 ft 3 in

Length: 17 ft 6 in

Empty weight: 476 lb

Loaded weight: 636 lb

Speed: 85 mph