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L. Dutheil and R. Chalmers and Company was an early French designer of aircraft engines in which the cylinders were all arranged horizontally. Two, three, four and six cylinder models were built. All were water cooled with the exception of the model represented by this artifact. This air-cooled engine was built by about 1910.

An engine similar to this type powered Santos-Dumont's Demoiselle aircraft.

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 Dutheil-Chalmers 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 France Type PROPULSION-Reciprocating & Rotary Manufacturer Dutheil-Chalmers
 Physical Description Type: Reciprocating, Horizontally-opposed, 2 cylinders, air-cooled Power: 15 kw (20 hp) Displacement: Not available Bore and Stroke: Not available Weight: Not available Dimensions Propeller Dimensions: Diameter 133 cm (52.250 in.), Chord 15 cm (6 in.), Shaft Hole Diameter 39 cm (1.8125 in.), Bolt hole diameter 0.6 cm (0.250 in.), Hub Diameter 10 cm (4.0 in.), Hub Thickness 6 cm (2.25 in.)
 Materials Propeller - Wood
Engine Overall - Steel, Aluminum, Brass
 Inventory Number A19690250000 Credit Line Gift of Matthew Bacon Sellers, Jr. and John Sellers. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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