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tgruitt View Drop Down
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    Posted: 28 Sep 08 at 2:38pm
Hi,

I was wondering if someone can explain to me how the 'Platex' works on Ecover III and Aviva, I have read the article on another sailing website but it doesn't actually show what it is. Is it just a solid piece that drops out of the bottom of the hull, what shape is it? I understand what it does, and how the other trim tabs on Open 60s work, but not this one. I hope someone can fill in the blanks.

Thanks

Tom
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Isis View Drop Down
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Posts: 2753 		Post Options Post Options   Quote Isis Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 08 at 6:32pm
Its sometimes called an interceptor in powerboats etc... In fact I think Artemis 2 had a similar device but didn’t call it a platex (but its been on and off during trials so I’m not sure where they are now) Its just a flat vertical plate that can be lowered 10-20mm bellow the hull surface and affects the flow beneath the hull

Artemis' device was fitted on the transom, whereas the Owen Clark boats have theirs fitted just forward of the transom - as far as I know that’s the only difference deserving the fancy name.

Its used in much the same way as the other wedges and trim tabs - It allows a boat designed with less rocker than usual to create an artificial rocker so the boats trim,, particularly in knarley conditions, can be changed



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tgruitt View Drop Down
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Posts: 2479 		Post Options Post Options   Quote tgruitt Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 08 at 6:40pm
Thanks Isis, that has cleared it up, I think I understand now. Is there any chance you could draw a quick diagram of it in the down position?

Tom
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Isis View Drop Down
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Posts: 2753 		Post Options Post Options   Quote Isis Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 08 at 6:57pm
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tgruitt View Drop Down
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Posts: 2479 		Post Options Post Options   Quote tgruitt Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 08 at 6:57pm
Originally posted by Isis



Fantastic, thank you!!
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