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Fourteen-gear transmission
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Fourteen gears give a higher gear ratio that can be used when driving so that
the engine revolutions are better suited to the required speeds. This result
in lower fuel consumption and higher road speed.
The transmission has five gears and input electro-pneumatic two-gear reductin
activated by a switch on the gear lever. All gears are marked C (Crawler) and
used to move the vehicle if it gets bogged down. The additional gearbox has
two gears with double-cone synchronization which has a fully automatic elektro-pneumatic
control activated by the gear lever movement.
This original "TATRA" transmission solution uses the princple that two high-speed gears
(four gears if input reduction is deployed) are engaged twice. Once with the engaged
low-speed reduction of the additional gearbox and once with the engaged high-speed reduction.
This gives 14 forward gears in addition to two reverse gears.
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Engineering concept
