ClimateRight CR-2550 Uživatelský manuál stáhnout pdf (Strana 130)

Vessel Operation

5-19

When the vessel begins to gather speed to stern, the water passing by

the lower gearcase housing will continue to increase steering torque. If

the helm wheel is turned to starboard, it will direct the propeller thrust

to port, tracking the stern to starboard.

Wind and current will affect how a vessel backs. Stern drive boats

tend to be light displacements and when backing down in a strong

crosswind; the bow will tend to fall toward the windward. This may

cause steering problems.

Once increased headway is gathered in reverse gear, the force of the

lower hull moving through the water is

enough to track straight. When backing,

the stern will lead as it heads to port or

starboard, before the vessel actually starts

to turn.

When the control is put in forward gear

position, the stern is pushed to starboard;

the amount of push depends on the hull

design and the amount of throttle advance.

See illustration.

Stopping

Remember that your boat does not have any brakes. It uses reverse

thrust from the propeller to stop. If the vessel has headway, with the

helm and propeller in reverse the propeller thrust is directed backwards,

past the lower gearcase of the stern drive.

Depending on how far the throttle is advanced, the discharged thrust

may not be strong enough to reverse the water ﬂ owing by the gearcase.

As the power is increased, the propeller thrust becomes strong enough

to stop the ﬂ ow of water past the lower unit, and, as the throttle is

advanced it reverses its ﬂ ow more completely.

When water is ﬂ owing past the gearcase, steering torque is increased,

but when the thrust stops the water ﬂ ow, the boat will not respond

to the helm. This is a short lived event and is overcome quickly when

the water again ﬂ ows past the gearcase.