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Old 06-04-2005, 01:06 PM   #22
jetskier
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Talking OPAS - Good Discussion!!!

Hi all,

The OPAS system is meant to provide steering control when you do not have power. A jet propulsion system provides steering by directing the flow of water in a direction. When there is no power, there is no steering or control.

The OPAS system on the Sea Doo uses a pair of fins to provide steering control at very low speeds. This works even when there is no power, the fins do cause drag. At low speeds, this is not a problem. When you increase speed, the water pressure increases and is used to lift the fins and retract them.

I find that there are times that the power control and the off power control conflict and create handling issues. This is true in chop when the pressure can fluctuate and cause the fins to drop and rise. In addition, when you speed up and slow down, there is a point where the fins retract and fall that is a bit variable.

Personally, I just don't like the craft handling with the OPAS. I find that there are times that it is not predictable. Without it, it behaves in a more predictable fashion. So, I have disabled it. I have been riding a PWC for years without this system and know how to handle the craft. I think that the system might be good for new riders or renters...but, for an experienced rider, I don't see too much value.

Regards,
jetskier
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