? On Triple's Prop Rotation
10-10-2008, 04:18 AM
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? On Triple's Prop Rotation
I recently saw a 50' Scarab with triple Yanmar's into TRS drives. The owner claims the boat will not exceed 30 mph. I was thinking "what if" the wrong rotation would be the culprit ?
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10-11-2008, 04:24 AM
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Which way are the props supposed to spin on port, starboard and center? In other words lets say the outer drives spin in...which way should the center drive spin?
Last edited by cig1988; 10-11-2008 at 04:41 AM.
10-13-2008, 08:17 AM
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On mine the center and the starboard were spinning right and the port was spinning left.
I rember seeing an article on a big diesel boat years ago. They couldn't get it to perform very well. They started to expirement with props, and it really woke it up.
I think props probably is the problem with that boat, but I think you would need to talk with a prop expert to know for sure.
With a little more information you could use a prop slip formula to see how the current props are performing. That would help get you started in the right direction.
I rember seeing an article on a big diesel boat years ago. They couldn't get it to perform very well. They started to expirement with props, and it really woke it up.
I think props probably is the problem with that boat, but I think you would need to talk with a prop expert to know for sure.
With a little more information you could use a prop slip formula to see how the current props are performing. That would help get you started in the right direction.
10-14-2008, 05:01 AM
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On mine the center and the starboard were spinning right and the port was spinning left.
I rember seeing an article on a big diesel boat years ago. They couldn't get it to perform very well. They started to expirement with props, and it really woke it up.
I think props probably is the problem with that boat, but I think you would need to talk with a prop expert to know for sure.
With a little more information you could use a prop slip formula to see how the current props are performing. That would help get you started in the right direction.
I rember seeing an article on a big diesel boat years ago. They couldn't get it to perform very well. They started to expirement with props, and it really woke it up.
I think props probably is the problem with that boat, but I think you would need to talk with a prop expert to know for sure.
With a little more information you could use a prop slip formula to see how the current props are performing. That would help get you started in the right direction.
