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  • DEUTSCH, seite 131
If the motor has an electrohydraulic power trim, the basic trim angle adjustments
are as follows:
• To plane the boat, the trim should be adjusted all the way down
(negative setting: "bow down").
• When the boat is planing in low waves, the trim should be raised until the
boat starts to porpoise, the propeller loses grip or the engine reaches the
upper limit of the normal adjustment range. When this happens, lower the
bow slightly until the ride is stable. The log (speed indicator) can be used to
optimise the trim angle.
• When riding into waves the bow should be lowered until the ride becomes
smooth. When driving with a tailwind or driving into very high waves the
bow should be raised slightly to avoid ploughing through the waves.
• Do not drive the boat at a high speed with a fully negative trim angle
(bow down) as this may cause the boat to roll from side to side and make
steering unstable.
• If the trim angle cannot be adjusted while driving (if the angle is adjusted
using trim rods before setting off), the angle should be selected so that the
boat only just planes under its normal load. This way the boat assumes a
satisfactory planing angle.
Please also consult the engine manual.
Outboard engines are usually designed to be mounted at a height that aligns the
engine's cavitation plate with the boat's keel.
WARNING
WARNING
WARNING
Learn the seafaring rules and the COLREG provisions (International Regulations for
Preventing Collisions at Sea). Navigate with care and make sure your charts are up
to date.
Always adapt your speed to the prevailing conditions and the environment. Observe
the following:
• Wave height (also ask for your passengers' opinion about comfortable
speed)
• Your wake wash (the wake wash is at maximum at the planing threshold
and at minimum at the displacement speed). Observe "No wash zone"
signs. Take other boaters and safety into consideration by slowing down
and reducing your wake when necessary.
Be very careful when adjusting the trim angle at a high speed: it
may affect the boat's behaviour radically. Do not drive the boat
with the bow too low, because this may cause the boat's turning
characteristics to become erratic.
At full speed the craft's handling characteristics may deteriorate.
Sudden turns at high speed may result in loss of control. Slow
down before making a sharp turn in either direction.
Sea conditions may make steering the boat more difficult and
cause the boat to roll and lurch. Reduce speed when wave
height increases.
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