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Stern Drive (Inboard/Outboard, Outdrive) |
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The engine is mounted inside the
boat. The transmission/drive unit is outside, attached to
the transom. The engine and drive unit are joined by a torque
coupler and universal joint. Angling the drive steers the boat. |
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Inboard |
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The engine and transmission/drive unit are
inside the boat. A drive shaft is connected at the rear of
the transmission and is run out of the hull through a sealing
unit. The propeller is connected directly to the drive shaft
at the in-water end. A separate rudder steers the boat. |
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V-Drive |
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Basically a modified inboard installation.
The engine is mounted with the front (pulley end) facing stern
(rear). The transmission faces the bow (front) and by the use
of a universal joint on the end of the transmission, the drive
shaft is directed stern-wards under the engine and through
the hull. The propeller/rudder arrangement is the same as in
a standard inboard installation. |
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Jet Drive |
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The engine is mounted inside the boat and attached
to a high speed pump which draws in water through an intake
grate, increases its velocity and forces it out through a directionally
adjustable nozzle which is mounted outside the boat. Changing
the direction of the nozzle steers the boat. |
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