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Hayling Island PWC Club

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Personal Watercraft

A Personal watercraft is a machine which uses water jet propulsion to plane on the waters surface. Personal Watercraft are also known as Jetski's, although this term is owned by the Kawasaki organisation, therefore the industry is using the term personal watercraft to describe both sitdown and stand up models.

The figure below shows the sit down PW in more detail.

pwc











Personal Watercraft have come a long way, sit down models can now develop in excess of 250 bhp using complex 4 stroke engines and can be designed to carry up to 3-4 people depending on the model. Engineering advances have been made in reducing noise whilst increasing fuel efficiency.

stand up
Stand up models usually have a 2 stroke engine although some manufacturers are offering a 4 stroke engine.
Stand Up models are very manouvreable and are able to do some spectacular jumps, rolls and tricks in the right hands. 




pwc

Sit down personal watercraft are very similar to a small power boat. All PWC have a lanyard which the user will attach to themselves (usually around the operators wrist, but can be to a lifejacket) which will cut the engine should the operator fall off. All PWC Operators should wear a personal flotation device.





jetdriveThe drive system of a PWC is very important. This picture shows how the jetdrive works. Water is simply "sucked" into the intake through the impeller and forced out through the steering nozzle. PWC are unable to steer without power. Seaweed, plastic bags, fishing lines and other flotsam and jetsam are a real hazard for PWC users. At best such debris will decrease performance, whereas a plastic bag can "kill" a PWC jetpump and potentially cause a dangerous breakdown.



datatag

All registered PWC have a datatag number on the port and starboard of craft placed towards the bow.
This is very similar to a car registeration plate, datatag numbers are used to uniquely identify each PWC and their registered keepers. This data can be used by the appropriate authorities in case of theft for example.

It is a club requirement that all club PWC are datatag registered.






QUICK LINKS

  1. Learn more about Datatag
  2. Recommended Equipment