A license-built version of the German Daimler-Benz DB 601A, this Japanese engine powered the World War II Japanese Aichi M6A1 Serian prototype, Navy Special Attack Bomber, a submarine-borne float aircraft. It also powered early versions of the Yokosuka D4Y2 series Suisei Navy carrier-based dive bomber and reconnaissance aircraft (Allied Code Name Judy).

The Atsuta Model 20 and 30 series engines were the only liquid-cooled engines used operationally by the Japanese Naval Air Force.

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 World War II

Country of Origin

Japan

Type

PROPULSION-Reciprocating & Rotary

Manufacturer

Aichi Aircraft Company (Aichi Kokuki KK)

Physical Description

Type: Reciprocating, Inverted V, 12 cylinders, Liquid cooled, Supercharged, Fuel injected
Power rating: 1,074 kW (1,440 hp) at 2,800 rpm
Displacement: 33.9 L (2,069 cu in) (Based on DB 601A)
Bore and Stroke: 150 mm (5.9 in.) x 160 mm (6.3 in.) (based on DB 601A)
Weight: 715 kg (1,576 lb)

Dimensions

Length 215.0 cm (84.625 in.), Width 71.2 cm (28. 06 in.), Height 106.0 cm (41.75 in.)(Dimensions for Aichi Atsuta Model 31)

Materials

Ferrous Alloy
Non-Magnetic Metal
Paint
Paper
Wood
Fabric Tape

Inventory Number

A19710929000

Credit Line

Transferred from the U.S. Navy

Data Source

National Air and Space Museum

Restrictions & Rights

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