Society of Automotive Engineers of Japan, Inc. 240 Landmarks Top JSAE HOME
240 Landmarks of Japanese Automotive Technology
left image
240 Landmarks TopPassenger Cars, Part 1 > Ohta Model OD
 Ohta Model OD
image
Hiro Ohta, a business man involved in selling and repairing vehicles, completed his own first vehicle, the OS, as early as 1922. It was renowned for its high-speed engine, Zenith carburetor and magneto ignition system. The original model had an engine capacity of 965 cc, but this was later reduced to 748 cc. Ohta's son, Yuichi, took over responsibility for the body styling, coming up with a design that was well received and enabling 670 units of the OD to be produced. As with Datsun, the same chassis could be used as a truck, and an Ohta vehicle even overcame a Datsun at the Tamagawa Speedway. Development of the OD was backed by Mitsui Co., Ltd and full-scale machine tools, such as milling machines and Gleason gear cutters, were imported from overseas. A new factory was established at Omori and the company changed its name from Ohta Jidosha to Kosoku Kikan Kogyo.
dot
Storage location:MOTORCAR MUSEUM OF JAPAN (40, Ikkanyama, Futatsunashi-cho, Komatsu-shi, Ishikawa-ken 923-0345)
dot
Year manufactured:1937
dot
Manufacturer:Kosoko Kikan Kogyo
dot
Classification:Mass-production vehicle
dot
Current status:On public display: operational
dot
Vehicle name / Manufacture
Vehicle name:Ohta
dot
Model name:Model OD
dot
Company name:Kosoku Kikan Kogyo
dot
Year manufactured:1937
dot
Designed by:Hiro Ohta
dot
Collaboration:Yuichi Ohta (styling)
dot
Vehicle type/usage:Small passenger car
dot
Location of actual vehicle/replica:Motor Car Museum of Japan
dot
Model / Weight
Style:Sedan (phaeton, roadster)
dot
Number of doors:2
dot
Passenger capacity:4
dot
Vehicle weight:680 kg
dot
Points of interest, topicality:Mechanism by Hiro Ohta (father), styling by Yuichi Ohta (son)
dot
Body / Size
Structure:Steel sheet stamping
dot
Bumpers:Steel
dot
Step:None
dot
Overall length:3190 mm
dot
Overall width:1200 mm
dot
Overall height:1565 mm
dot
Features:The outstanding style of the OD threatened the sales of Datsun, and 670 units were sold.
dot
Body / Axle / Driving / Others
Frame:Steel sheets, ladder type × member
dot
Front axle:Rigid, longitudinal 1/2 leaf
dot
Rear axle:Rigid, longitudinal 1/2 leaf
dot
Wheelbase:1965 mm
dot
Front tread x rear tread:1050 mm
dot
Vehicle height adjustment:None
dot
Steering:Worm and sector type
dot
Dampers:Friction
dot
Stabilizer:None
dot
Driving stability devices:None
dot
Engine / Size / Power
Cooling/cylinder arrangement:Water-cooled/inline 4-cylinder
dot
Valve train:SV
dot
Carburetor:Zenith
dot
Bore x stroke:61×64 mm
dot
Displacement:748 cc
dot
Ignition system:Delco type, 6 V
dot
Max. power/r.p.m.:12.5 hp/5000 rpm
dot
Exhaust emissions treatment:Noise reduction muffler only
dot
Supercharger:None
dot
Variable ignition system:Automatic ignition advance
dot
Fetures:As can be expected from the company name, it boasts high engine revolution and high performance.
dot
Hybrid
Hybrid system type:None
dot
Drive-train
Transmission:MT3
dot
Drive system:FR
dot
Performance
Mode fuel efficiency:-
dot
Reference materials:Nihon Kikai Gakkai Nenkan (1941); San-ei Shobo Publishing Co., Ltd., Kokusan-sha 100 Nen No Kiseki (1978)
dot
240 Landmarks TopPassenger Cars, Part 1 > Ohta Model OD page top
COPYRIGHT (C) SOCIETY OF AUTOMOTIVE ENGINEERS OF JAPAN, INC. ALL RIGHTS RESERVED.