540
4
GETTING UNDERWAY
Studio ti 03312 540-04usa
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4.7 NAVIGATION WITH ONLY ONE ENGINE
The yacht is driven by two powerful thrust systems designed to operate
together and at the same time.
In case of failure of one of the thrust systems, you may navigate with only
one engine.
Therefore, we suggest you to:
− shut off the failed thrust engine;
− set the position of the steering wheels in the opposite direction of the
failed thrust system; in case the steering wheels cannot contrast the
asymmetric push of the operating system, lower the trim tab on the
side of the failed system, or reduce the speed;
− head to the nearest landing at a reduced speed;
− keep the yacht at a speed that allows the best manoeuvrability.
In case one engine stops due to a failure and the gear box is in idle
position, during navigation keep constantly an eye on the oil temperature
of the gear box connected with the failed system.
The propeller shaft is kept rotating thanks to the water flow through the
propeller, under these conditions also some parts of the gear box are kept
rotating.
Should the temperature increase excessively over 80°C/176°F, lock the
propeller shaft by engaging the gearbox: in this way the resistance will be
higher, because the gear box is jammed, but oil will not overheat.
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WARNING
The yacht has been designed to navigate driven by two engines; please
remember that it is possible to navigate with one engine only in case of
emergency and for a very short time.
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DANGER
It is absolutely forbidden to perform reverse run with one of the two
engines stopped. This operation is allowed only in case of life danger
for the persons on board and for the safety of the yacht itself, however
when the engine is running it should not run higher than 1000 rpm.
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