Object Details
- Physical Description
- Type: Reciprocating, 18 cylinders, 2-rows, radial, air cooled
- Power rating: 1,361 kW (1,825 hp)
- Displacement: 35.9 L (2,195 cu in.)
- Bore and Stroke: 130 mm (5.1 in.) x 150 mm (5.9 in.)
- Weight: Unknown
- Summary
- The Homare (Honor) was Japan’s most-used engine in the latter years of World War II. It had a very high specific output, incorporating for the first time in a Japanese engine, a steel crankcase, dynamic balancers, a dual magneto with a remote distributor (on the nose), and a nose sump pump. Its supercharger drive followed a Wright design, with a planetary reduction gear in series with the high gear for obtaining a lower compression ratio. All models suffered from unreliability, service difficulty (particularly when first entering service), and vibration.
- The artifact powered the Yokusuka P1Y1 Ginga (Milky Way) (Allied Code Name FRANCES) twin- engine aircraft for low-altitude torpedo and dive-bombing attacks. Several of these aircraft carried out Kamikaze suicide attacks against American warships. This particular NK9C (Ha45-12) engine model also powered the Aichi B7A2 Ryusei (Shooting Star) single engine torpedo bomber (Allied Code Name GRACE), the largest and heaviest Japanese carrier-based aircraft to fly in World War II.
- Credit Line
- Transferred from the U.S. Air Force
- 1945
- Inventory Number
- A19600340004
- Restrictions & Rights
- Usage conditions apply
- Type
- PROPULSION-Reciprocating & Rotary
- Materials
- Aluminium
- Paint
- Steel
- Plastic
- Adhesive
- Magnesium Alloy
- Rubber
- Natural Fabric
- Dimensions
- Length 157.5 cm (62 in.), Width 152.4 cm (60 in.), Height 189.2 cm (74.5 in.) (Approximate)
- Country of Origin
- Japan
- See more items in
- National Air and Space Museum Collection
- National Air and Space Museum
- Record ID
- nasm_A19600340004
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/nv9951f93d8-ebf7-4a71-a0a1-8ff181e2cc61
