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.

Display Status

This object is on display in Boeing Aviation Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Boeing Aviation Hangar

Object Details

Date

1910

Country of Origin

United States of America

Type

PROPULSION-Reciprocating & Rotary

Manufacturer

Bates Engineering Company

Physical Description

Type: Reciprocating, Horizontally-opposed, 2 cylinders, air-cooled
Power: 19 kW (25 hp) at 1,200 rpm
Weight: 22 kg (49 lb)

Dimensions

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)

Materials

Engine Case - Aluminum
Propeller Blade - Wood

Inventory Number

A19690248000

Credit Line

Gift of Matthew Bacon Sellers, Jr. and John Sellers.

Data Source

National Air and Space Museum

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