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 > Toyoda Model AA
 Toyoda Model AA
image
Determined to build a popular passenger vehicle that would satisfy the needs of Japanese consumers, Kiichiro Toyoda, executive director and chief engineer of Toyoda Automatic Loom Works, moved into the automotive business. He began research into a small engine in 1930, before completing the type A prototype engine in 1934 based on a 1933 Chevrolet engine. Toyota's first Japanese-produced passenger vehicles, the Model AA sedan and Model AB Phaeton were developed in 1936, equipped with the type A engine. From September 14 to 16 of the same year, a large-scale exhibition was held at the Tokyo Shoko Shorei Kan (the current Tokyo Metropolitan Industrial Technology Research Institute) entitled "Exhibit to Commemorate the Completion of Toyoda’s all-Japanese Popular Vehicle". Over 20,000 people visited the exhibition while it was held, inspired by their interest and hopes for domestically produced cars. Toyoda also received the unofficial announcement that his company had been given permission to build vehicles under the Automobile Manufacturing Industries Law during the exhibition. As a result, the company quickly tooled up to begin mass production of trucks. The Model AA had a streamlined Airflow shape, and improved rigidity due to its single-sheet, all-steel cabin roof called a "turret top". The engine was mounted directly over the front axle and the rear seats were located in front of the rear axle. As a result, the Model AA had excellent ride characteristics and an ideal weight balance. The chassis combined parallel leaf springs and a rigid axle that formed a shape very close to that of the airflow body. The Model AA was also one of the first vehicles to persevere with hydraulic brakes instead of the rod brakes favored by Ford and Chevrolet. The high-powered 65 HP/3000 rpm engine produced maximum torque of 19.4 kgm/18000 rpm and propelled the vehicle to a top speed of around 110 km/h.
dot
Storage location:TOYOTA AUTOMOBILE MUSEUM (41-100, Yokomichi, Nagakute, Nagakute-cho, Aichi-gun, Aichi-ken 480-1131)
dot
Year manufactured:1936
dot
Manufacturer:Toyoda Automatic Loom Works
dot
Classification:Replica
dot
Current status:On public display: operational
dot
Vehicle name / Manufacture
Vehicle name:Toyoda Model AA
dot
Model name:Model AA
dot
Company name:Toyoda Automatic Loom Works
dot
Year manufactured:1936
dot
Vehicle type/usage:Passenger car
dot
Location of actual vehicle/replica:Toyota Automobile Museum
dot
Model / Weight
Style:Sedan
dot
Number of doors:4
dot
Vehicle weight:1500 kg
dot
Points of interest, topicality:Toyota's first domestic passenger car
dot
Body / Size
Structure:Sedan
dot
Bumpers:Steel
dot
Step:One step
dot
Overall length:4785 mm
dot
Overall width:1730 mm
dot
Overall height:1736 mm
dot
Tire size:5.50-17
dot
Body / Axle / Driving / Others
Frame:U-type section extrusions (steel sheets)
dot
Front axle:I-type section "Tsuitan" reverse Elliott type
dot
Rear axle:Semifloating type
dot
Wheelbase:2850 mm
dot
Front tread x rear tread:1440×1450 mm
dot
Steering:Semi-reversible worm and sector type
dot
Engine / Size / Power
Cooling/cylinder arrangement:Water-cooled inline 6-cylinder (A type)
dot
Valve train:OHV
dot
Carburetor:Carter downdraft carburetor
dot
Bore x stroke:84×102 mm
dot
Displacement:3389 mL
dot
Ignition system:Battery type
dot
Max. power/r.p.m.:65 hp/3000 rpm
dot
Max. torque/r.p.m.:19.4 kgm/1800 to 2000 rpm
dot
Fetures:The first automobile engine manufactured by Toyota. Developed based on a Chevrolet engine.
dot
Hybrid
Hybrid system type:None
dot
Drive-train
Transmission:3 forward speeds and 1 reverse speed, synchromesh
dot
Drive system:FR
dot
Performance
Mode fuel efficiency:-
dot
Reference materials:Toyoda Model AA (published by the Toyota Automobile Museum)
dot
240 Landmarks TopPassenger Cars, Part 1 > Toyoda Model AA page top
COPYRIGHT (C) SOCIETY OF AUTOMOTIVE ENGINEERS OF JAPAN, INC. ALL RIGHTS RESERVED.