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Austro-Daimler engines were built originally in Austria from the designs of Ferdinand Porsche, and later produced in Scotland by Arrol Johnston and William Beardmore and Son. Austro-Daimler was among the first to produce aircraft engines that attained a marked degree of success. The British, Russian, Italian, Austrian, and German armies adopted Austro-Daimler engines for airplanes and dirigibles prior to World War I, and airplanes equipped with Austro-Daimler engines set many early records.

Austro-Daimler almost exclusively made vertical four- and six-cylinder inline engines; and this Type D-35 was the only V-12 they ever made. A very rare artifact, this engine is believed to have been removed from the Ungarische Flugzeugwerke A.G. K 405 flying boat (a Hungarian license-built Brandenburg W 13) by the Naval Aircraft Factory in 1920.

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 1920

Country of Origin

Austria

Type

PROPULSION-Reciprocating & Rotary

Manufacturer

Austro-Daimler

Physical Description

Type: Reciprocating, 12 cylinders, V-type, Liquid-cooled
Power rating: 257 kW (345 hp) at 1,400 rpm
Displacement: 30.01 L (1,830.96 cu in)
Bore and Stroke: 135 mm (5.31 in.) x 175 mm (6.89 in.)
Weight: 509.6 kg (1,122.5 lb)

Dimensions

Height 91.4 cm (36 in.), Length 190.5 cm (75 in.), Width 83.8 cm (33 in.)

Materials

Steel, Aluminum, Preservative coating, Paint, Rubber, Phenolic, Ceramic, Wood

Inventory Number

A19731561000

Credit Line

Transferred from the U.S. Navy, Naval Supply Center, Cheatham Annex, Williamsburg, Virginia

Data Source

National Air and Space Museum

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