Wave And Wake Jumping - Mercury Ocean Runner 290 Owner's Manual

Wave and Wake Jumping

Operating recreational boats over waves and wakes is a natural
part of boating. However, when this activity is done with sufficient
speed to force the boat hull partially or completely out of the
water, certain hazards arise, particularly when the boat re‑enters
the water.
The primary concern is the boat changing direction while in the
midst of the jump. In such cases, the landing may cause the boat
to veer violently in a new direction. Such a sharp change in
direction can cause occupants to be thrown out of their seats or
out of the boat.
Wave or wake jumping can cause serious injury or death from
occupants being thrown within or out of the boat. Avoid wave
or wake jumping whenever possible.
There is another less common hazardous result from allowing
your boat to launch off of a wave or wake. If the bow of your boat
pitches down far enough while airborne, upon water contact it
may penetrate under the water surface and submarine for an
instant. This will bring the boat to a nearly instantaneous stop
and can send the occupants flying forward. The boat may also
steer sharply to one side.
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GENERAL INFORMATION
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WARNING
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