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What does this measurement rule mean?
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Daniel Holman View Drop Down
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Joined: 17 Nov 08
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Posts: 997 		Post Options Post Options   Quote Daniel Holman Quote  Post ReplyReply Direct Link To This Post Topic: What does this measurement rule mean?
    Posted: 06 Jan 19 at 8:57pm
I realise that all too well with these days pre mk1 Neanderthal processing. I was being facetious / flippant / sarcastic.
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Rupert View Drop Down
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 19 at 9:16pm
Because sarcasm always works on the the internet...
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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Rupert View Drop Down
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 19 at 9:18pm
Actually, I'm the quest for speed, ease of sailing does appear to be forgotten in many cases, as does a decent light wind performance. Probably one reason dinosaur designs are still popular.
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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zeon View Drop Down
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Posts: 316 		Post Options Post Options   Quote zeon Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 19 at 9:48pm
Originally posted by davidyacht

I went for a CP of .55 with Annie Apple, which was slippery in light winds and ran out chines to the transom for planing performance.  Worked pretty well, until my daughter became more adult sized.  I drew a foiling rudder for her but never had the courage to see it through.  With hindsight I would have gone for a deeper, filled out stem, with less compromise for planing sections, putting more emphasis on the foils for lift.

.60 sounds high, but in the 14 sailing in light winds is of less relevance.

Ref. Midship section, you need to consider the small tweak of resting the rise of floor jig on the topside chine, and have maximum overhang for the gunwales, also you don’t necessarily need to go for minimum freeboard, the geometry of the double floor and the length of your lower leg might push you to a higher freeboard, also this has the effect of reducing the beam of the topsides lower down.

Oh wow . Are you the original owner/ designer of Annie Apple ? This boat has been at our club for about the last decade . It’s still going great , in light winds too, with a female crew that is definitely adult sized lol 
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craiggo View Drop Down
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Posts: 1810 		Post Options Post Options   Quote craiggo Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 19 at 10:32pm
Sorry Dan, I did note the sarcasm.

Was just making the point for the benefit of others who might not!
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Daniel Holman View Drop Down
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Posts: 997 		Post Options Post Options   Quote Daniel Holman Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 19 at 11:15pm
😀
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