Yamarin 79 Day Cruiser
27 (53)
WARNING!
Do not drive the boat at high speeds with the engine trimmed up
(bow up), as there is a risk of sudden heeling when the propeller
hits the water again after a flight in heavy waves. Likewise, do not
drive at high speed with the engine completely trimmed down
(bow down) since this can cause the boat to pitch unexpectedly
when the bow hits the water. The boat may become unstable
when turning if the bow is too low.
The trim tabs can be used to adjust the boat's heel to make the boat run in an upright
position in crosswinds or with an unbalanced load.
All planing boats lean into the wind, but the heel can be adjusted by lowering the windward
trim tab. This makes the boat's sharp bow cut the waves, resulting in a much smoother ride.
If you want to further reduce the waves' effect on the boat, you should trim the windward
side up to lift it above the waves to an extent.
Image: Trim system
1. Trim tab
4. Trim control unit
2. Trim cylinder
5. Trim pump
3. Trim hose
6. Trim switches
WARNING!
Adjust the trim tabs carefully at high speeds – adjusting them
radically changes the way the boat handles. Do not drive with the
bow too low, since the boat may turn unexpectedly.
WARNING!
Waves reduce manoeuvrability and make the boat heel.
Accordingly, reduce speed when encountering heavier seas.
