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But some semi-automatic transmissions have also been based on standard hydraulic automatic transmissions with torque converters and planetary gearsets. [1] [2] Names for specific types of semi-automatic transmissions include clutchless manual, [3] auto-manual, [4] [5] auto-clutch manual, [6] [7] and paddle-shift transmissions.
Other applications of semi-automatic transmissions on motorcycles include the Yamaha FJR1300AE sport-touring motorcycle, with the YCCS automatic clutch system, Honda's range of 2- and 3-speed Hondamatic semi-automatic transmissions, used on various motorcycles throughout the 1970s and 1980s, and the three-wheeled BRP Can-Am Spyder Roadster ...
Kart racing or karting is a motorsport discipline using open-wheel, four-wheeled vehicles known as go-karts or shifter karts. They are usually raced on scaled-down circuits , although some professional kart races are also held on full-size motorsport circuits.
There is a design for a toy 'automatic clutch' in Meccano Magazine of June 1934. [4] Armstrong Siddeley cars featured automatic (centrifugal) clutches beginning in 1936. [5] Thomas Fogarty, who is also credited with inventing the balloon catheter, is credited with inventing a centrifugal clutch for small motor applications in the 1940s. [6]
The power was transmitted to the wheels via a 5-speed semi-automatic transmission with reverse. [4] Braking was accomplished via a single drum brake on the rear axle, with no front brakes. The LT125 also had no suspension front or rear, with all bump handling being accomplished by its low pressure tires.
GM's Automatic Safety Transmission (AST) was a semi-automatic transmission released in 1937. The first mass-produced fully-automatic transmission developed for passenger automobile use was the GM Hydramatic introduced in 1940. [1] The Hydramatic was a big success, and had been installed in the majority of GM models by 1950.
KZ2 is a kart racing class using 125 cc water-cooled two-stroke engines yielding about 52 hp (39 kW). The engines are equipped with a 6-speed gearbox. Z2 is the second fastest of the KZ karting racing categories, and technical regulations are similar to faster KZ1 except that in KZ2 the gearbox must be "hand-operated and exclusively mechanical without a servo system", as well as the use of ...
The original Hondamatic, like all following Honda automatics, featured gears on parallel axes rather than planetary gears like most other automatic transmissions. The two gears for each ratio - one driving and the other driven - are in constant mesh and each ratio is engaged by a dedicated clutch connected to one of the ratio's two gears.