Sleipner VECTOR FINS VF650, Руководство по установке, Страница: 61 / 68

61
5251 5 2022
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SPS-B
Sea Trial
DYNAMIC CENTRE EXAMPLES
Typical fi n centre angles as found in dynamic centre tests on around 70’ planning V- hull boats. The fi ns are centred by water flow under the boat
through test and then fi ne-tuned manually.
Even if the fi ns in test at less than 4 knots are found to have an outward angle, the lowest speed should be set to 0 knots (zero) and fi ns parallel to the
keel.
From the STARTUP and MAINTENANCE menu:
1. Touch CENTRE POSITION (1234 -enter)
2. Ensure the fi ns are UNLOCKED and then Touch START
Proceed now to Dynamic fi n positioning
MC_0245
MG_0279
1 2
Speed (knots) Port fi n adjustment Starboard fi n adjustment
1 12 -3
o
+3
o
2 18 -4
o
+4
o
3 24 -5
o
+5
o
4 30 -4
o
+4
o
5 36 -3
o
+3
o
Dynamic fi n position setup
The dynamic setup is required to get the best Vector fi n performance benefi ts. A sea trial is required to fi nd the free float positions of the fi ns at
different speeds, and to tune to optimum position for a given speed. It is preferable to have flat sea for the dynamic setup sea trial, to minimize boat
roll that will influence fi n position.
To fi nd the free float positions, it is necessary to float the fi ns, start the logger, and take the vessel to maximum speed. Then register the positions at
different speeds, starting with the highest and choose speeds steps according to the vessel performance. The position is interpolated between the
different speeds, so it is important to have one speed before the planning threshold and one after, as the water flow over the fi ns often change much
during the transition to planning mode.
When all speeds/positions have been set, stop the logger.
Dynamic fi n position setup continues:
When the free float positions have been recorded, the following table can be used as a starting point for fi n position adjustment: (Do NOT press STORE
after adjusting with these values)
Some boats will require more or less adjustment for optimum performance. Too much correction is to be avoided, as the actuator needs some torque
reserve to be able to counter roll.
Sea Trial
MC_0245
MG_0280
Set speed position,
1 - 5
Store speed position,
1 - 5
Speed (Knots)