In 1929, D. J. Deschamps, formerly associated with a Belgian manufacturer, constructed a 2-cylinder Diesel test engine. Later, in early 1934, it was announced that Deschamps had designed a Diesel aircraft engine, designated V 3050 for its V-type and displacement. Built by the Lambert Engine and Machine Company in Moline, Illinois, as an experimental airship or trans-oceanic flying boat engine, it was one of the largest Diesel types for aircraft proposed up to that time.

Utilizing a liquid-cooled, two-stroke cycle, the inverted V-12 Diesel Deschamps engine also incorporated direct fuel injection and dual General Electric superchargers. Due to the narrow angle between its cylinder banks, it had a low frontal area. In order to accommodate airship requirements, the engine was fully reversible when operating. While a technically promising engine, financial difficulties prevented continued development and flight testing.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date Circa 1934 Country of Origin United States of America Type PROPULSION-Reciprocating & Rotary Designer D.J. Deschamps
 Manufacturer Lambert Engine and Machine Company
 Physical Description Type: Reciprocating, 12 cylinders, V-type, Two-stroke cycle, Diesel, Inverted, Liquid cooled, supercharged Power rating: 895 kW (1,200 hp) at 1,600 rpm Displacement: 50 L (3,052 cu in) Bore and Stroke: 152 mm (6 in.) x 229 mm (9 in.) Weight (dry): 1,089 kg (2,400 lb) Dimensions Length 266.7 cm (105 in.), Width 67.3 cm (26.5 in.), Height 125.9 cm (49.565 in.) (approximate dimensions)
 Materials Steel, Aluminum, Paint, Rubber, Copper
 Inventory Number A19710926000 Credit Line Transferred from the U.S. Navy Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.