Object Details
Manufacturer
Air Technical Arsenal, Japan
Physical Description
Type: Turbojet
Thrust: 8,328 N (1,872 lb.) at 12,000 rpm
Compressor: 4-stage axial
Combustor: Annular
Turbine: Single-stage axial
Weight: 750 kg (1654 lb)
Summary
Japanese turbojet development began in 1942 at the First Air Technical Arsenal, and employed centrifugal compressors. The first of these was undesignated, but served as a prototype for the TR-10, which was to be used in the twin-engine "anti-invasion" bomber Kikka. The designation TR meant Turbine-Rocket and was the Japanese term for aircraft turbine engine.
The TR-12 followed a compressor development pattern similar to German Heinkel-Hirth engines, and represented an improved TR-10 with four axial compressor stages added; but was considered to be too heavy. Under development between 1943 and 1944, the TR-30 was an enlarged TR-12B, planned for installation in the Keiun, a reconnaissance plane.
In July 1944, photographs of the German BMW 003 turbojet engine arrived by submarine. A companion sub containing production drawings was sunk enroute. Four engines evolved from these photos, including the Ne 20 by the Air Technical Arsenal. Like other Japanese engines, the TR-30 was abandoned in favor of the Ne 20.
Credit Line
Transferred from the U.S. Navy
Date
Circa 1943-1944
Inventory Number
A19710932000
Restrictions & Rights
Usage conditions apply
Type
PROPULSION-Turbines (Jet)
Materials
Steel
Non-magnetic Alloy
Paint
Plastic
Copper Alloy
Rubber
Dimensions
Length 247 cm (97.3 in.), Diameter 103 cm (40.6 in.)
Country of Origin
Japan
See more items in
National Air and Space Museum Collection
Data Source
National Air and Space Museum
Link to Original Record
Record ID
nasm_A19710932000