This object is on display in the Boeing Aviation Hangar room at Steven F. Udvar-Hazy Center in Chantilly, VA.
Collection Item Summary:
This engine was manufactured by the Bates Engineering Company of Chicago, Illinois, about 1910. It is believed to be a 19 kW (25 shp) Model 2 B. The engine had automatic intake valves and mechanically actuated exhaust valves.
Matthew B. Sellers, builder of the first Kentucky-manufactured aircraft, flew his first quadraplane from 1908 to 1913 powered by various 2-cylinder, horizontally-opposed engines. This Bates Model 2 B was one of these engines.
Collection Item Long Description:
National Air and Space Museum
Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum
Bates Engineering Company
Gift of Matthew Bacon Sellers, Jr. and John Sellers.
- Engine Case - Aluminum
- Propeller Blade - Wood
Hub Depth: 5.2 cm (2.0625 in.), Shaft Hole Diameter: 4.4 cm (1.75 in.), Bolt Hole Diameter: 0.6 cm (0.25 in.), Hub Diameter: 11.7 cm (4.625 in.), Propeller Diameter: 56.1875 in. (142.7 cm)
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National Air and Space Museum Collection
Country of Origin
United States of America
- Type: Reciprocating, Horizontally-opposed, 2 cylinders, air-cooled
- Power: 19 kW (25 hp) at 1,200 rpm
- Weight: 22 kg (49 lb)
PROPULSION-Reciprocating & Rotary