<P> The transmission input drive is a central hydraulic pump and final drive unit (s) is / are a hydraulic motor, or hydraulic cylinder (see: swashplate). Both components can be placed physically far apart on the machine, being connected only by flexible hoses . Hydrostatic drive systems are used on excavators, lawn tractors, forklifts, winch drive systems, heavy lift equipment, agricultural machinery, earth - moving equipment, etc . An arrangement for motor - vehicle transmission was probably used on the Ferguson F - 1 P99 racing car in about 1961 . </P> <P> The Human Friendly Transmission of the Honda DN - 01 is hydrostatic . </P> <P> If the hydraulic pump or hydraulic motor make use of the hydrodynamic effects of the fluid flow, i.e. pressure due to a change in the fluid's momentum as it flows through vanes in a turbine . The pump and motor usually consist of rotating vanes without seals and are typically placed in proximity . The transmission ratio can be made to vary by means of additional rotating vanes, an effect similar to varying the pitch of an airplane propeller . </P> <P> The torque converter in most automotive automatic transmissions is, in itself, a hydrodynamic transmission . Hydrodynamic transmissions are used in many passenger rail vehicles, those that are not using electrical transmissions . In this application the advantage of smooth power delivery may outweigh the reduced efficiency caused by turbulence energy losses in the fluid . </P>

Where is the transmission of a car located