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| Tetsushi Makita, who had been involved with the development of the Otomo and Ares with Junya Toyokawa in the Hakuyosha Company, moved to a new position with the Nihon Jidosha Corporation, becoming responsible for the design of the JAC motor bike, New Era three-wheeler and Kurogane. This company became Nihon Nainenki in 1932 and focused on producing a three-wheeled version of the Kurogane. However, the Japanese army instructed Nainenki to develop Japan's first 4-wheel drive vehicle, which was formally adopted and mass-produced as the Type 95. Characterized by a water-cooled engine and low weight, the Kurogane's double wishbone independent front suspension and large tires meant that it was highly suitable for traversing rough terrain. * It should be noted that the joints of the front-wheel drive axles were all cruciform joints. |
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| Storage location | : | MOTORCAR MUSEUM OF JAPAN (40, Ikkanyama, Futatsunashi-cho, Komatsu-shi, Ishikawa-ken 923-0345) |  |
| Year manufactured | : | 1936 |  |
| Manufacturer | : | Nihon Nainenki, Tetsushi Makita |  |
| Classification | : | Mass-production vehicle |  |
| Current status | : | On public display: operational |  |
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| Vehicle name / Manufacture |
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| Vehicle name | : | Kurogane 4-Wheel Drive Car |  |
| Model name | : | Type 95 Military Vehicle |  |
| Company name | : | Nihon Nainenki |  |
| Year manufactured | : | 1936 |  |
| Designed by | : | Tetsushi Makita |  |
| Vehicle type/usage | : | Small military passenger vehicle |  |
| Location of actual vehicle/replica | : | Motor Car Museum of Japan |
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| Model / Weight |
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| Style | : | Phaeton |  |
| Number of doors | : | 2 |  |
| Passenger capacity | : | 2 |  |
| Vehicle weight | : | Approx. 1060 kg |  |
| Points of interest, topicality | : | Developed 4 years earlier than the American Jeep (1940) |
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| Body / Size |
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| Structure | : | Steel sheet stamping |  |
| Bumpers | : | Steel piping |  |
| Step | : | None |  |
| Overall length | : | 3550 mm |  |
| Overall width | : | 1250 mm |  |
| Overall height | : | 1500 mm |  |
| Tire size | : | 6.00-18 in |  |
| Features | : | 4800 units manufactured |
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| Body / Axle / Driving / Others |
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| Frame | : | Steel sheets, ladder type |  |
| Front axle | : | Independent DWB, coil |  |
| Rear axle | : | Rigid, longitudinal 1/2 leaf |  |
| Wheelbase | : | 2000 mm |  |
| Front tread x rear tread | : | 1250 mm |  |
| Vehicle height adjustment | : | None |  |
| Steering | : | Round steering wheel |  |
| Stabilizer | : | None |  |
| Driving stability devices | : | None |  |
| Features | : | Short wheelbase with large-diameter wheels, large approach angle, good driving performance on rough roads |
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| Engine / Size / Power |
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| Cooling/cylinder arrangement | : | Air-cooled/V2 |  |
| Valve train | : | OHV |  |
| Carburetor | : | Amal type |  |
| Bore x stroke | : | 95×98 mm |  |
| Displacement | : | 1399 cc |  |
| Max. power/r.p.m. | : | 33 hp/3300 rpm |  |
| Exhaust emissions treatment | : | Exhaust muffler only |  |
| Supercharger | : | None |  |
| Variable ignition system | : | Automatic ignition timing |  |
| Fetures | : | As it was an air-cooled engine, it was easy-to-maintain in an era before the invention of antifreeze. |
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| Drive-train |
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| Transmission | : | MT4 |  |
| Drive system | : | 4WD |
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| Reference materials | : | Hayashi Kageyama, Hashire Yonrin Kudosha, Sankaido (1977) |  |
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