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Definition of Planing

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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 19 at 10:44am
The Ent was clearly not displacement sailing, the 200 was in and out of displacement mode with the kite up. The only workable definition of 'planing' I can think of is when the boat breaks free of displacement mode. This will vary according to hull shape and rocker (and some boats never completely break free). We all know when we are 'planing' by the feel of the boat and the way the wake flattens out.
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Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 19 at 11:58am
Or we could just use this, which is probably widest accepted version of 'planing' or to plane:


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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 19 at 4:19pm
Yup, that'd do it. So how do you know? When the boat lifts partially out of the water, like that Enterprise and the stern wave is clear of the transom?
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Noah View Drop Down
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Post Options Post Options   Quote Noah Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 19 at 6:31pm
Definition of planing I heard when nobbut a nipper - aeons ago - was a boat overtaking itís bow wave.
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 12 Mar 19 at 1:21pm
That's basically it, and it does so when it exceeds displacement speed, modern low rocker designs transition from displacement to 'full' planing very quickly, old boats like the Ent spend a fair bit of time transitioning (and some would say, never really achieve 'full planing').
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