Prototype production of EA small passenger car

In 1936, a unit of the DKW compact passenger car (front-wheel drive) bought in Germany by Kazuo Kumabe, an assistant professor of the Tokyo Imperial University Faculty of Engineering, was delivered to the Shibaura Laboratory. The Automotive Department of Toyoda Automatic Loom Works decided to disassemble and sketch the vehicle and make drawings of it, with Eiji Toyoda in charge of the engine and Higuma Ikenaga in charge of the suspension and other parts. This led to the prototype production of the EA small passenger car, which began in a section of the Kariya Assembly Plant from around June 1937.

When assembly was later transferred to the Koromo Plant, the prototype vehicle was left untouched at the Kariya Plant for a time, but in 1940 it was decided to produce engines and chassis at the plant's electrical components plant. For the vehicle body, a wooden model was created in the woodwork shop of an auto body plant also located at Kariya, and ten prototype units of the EA small passenger car were completed.

Meanwhile, the Tokyo Shibaura Plant developed the EB small passenger car by converting the EA into a rear engine/rear drive (RR) format, while the Kariya electrical components plant created the prototype of the EC electric vehicle using the chassis of the EA. The specifications of the EA small passenger car are shown in Table 1-9.

Table 1-9. Specifications of the E Engine and Model EA Compact Passenger Car (1940)

Item
Description
Engine
Model
2-stroke, 2-cylinder
Bore
74mm
Stroke
68mm
Engine displacement volume
584cc
Maximum output
18HP/3,200r.p.m.
Wheelbase
2,610mm
Length
3,220mm
Width
1,300mm
Vehicle weight
650kg
Source:
Toyota Motor Co., Ltd. Manufacturing Plan Vehicle List (EVN-100, November 9, 1950, Engineering Department, Design Section)

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