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What is a dinghy?? |
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Jon711
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Joined: 04 May 07 Location: United Kingdom Online Status: Offline Posts: 465 |
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Topic: What is a dinghy??Posted: 05 Mar 10 at 8:52pm |
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Is a Flying 15 a dinghy? I Believe it is - BUT IT HAS A KEEL!! I would suggest that maybe, a dinghy would plane under it's own right (this may upset YW Dayboat owners and did Uffa Kings ever plane??). So what is the defination of a SAILING DINGHY??
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JimC
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Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
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Posted: 05 Mar 10 at 9:16pm |
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A dinghy that sails?
Edited by JimC |
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Posted: 05 Mar 10 at 9:16pm |
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It's a keelboat as far as I'm concerned.
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Stefan Lloyd
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Joined: 03 Aug 04 Online Status: Offline Posts: 1599 |
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Posted: 06 Mar 10 at 6:50am |
No, it's a keelboat. Planing has nothing to with it; many keelboats will plane given the right conditions. |
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Contender 541
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Joined: 05 Dec 05 Location: Burton on Trent Online Status: Offline Posts: 1402 |
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Posted: 06 Mar 10 at 8:35am |
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Trust me - A Fifteen will plane - in a force 15 (forum wind). It actually needs a force 4 or above and you start getting very wet
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When you find a big kettle of crazy it's probably best not to stir it - Pointy Haired Boss
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Medway Maniac
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Joined: 13 May 05 Location: United Kingdom Online Status: Offline Posts: 2788 |
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Posted: 06 Mar 10 at 11:26am |
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Maybe a reasonable definition would be that you race a dinghy upright, thus deriving no righting moment benefit from any keel weight, whereas on a keelboat is sailed heeled to use, at least partially, the keel. On that basis, I guess the F15 is a self-righting dinghy if you watch the top guys, or a kelboat if you observe the tail enders |
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I luv Wight
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Joined: 28 Jan 05 Location: United Kingdom Online Status: Offline Posts: 628 |
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Posted: 06 Mar 10 at 5:34pm |
But... tunnel-hull moth, vortex, grf's new boat , toppers, scows - these don't sail best upright, and do benefit from more righting moment due to heel, and are all dinghies.But...Open 60's that do the same also have a keel. ( and are not dinghies) But...Catamarans are not ( usually ) keelboats, so are arguably a special sort of dinghy. But... Other local types of dinghy eg lymington scow, westwight scow, seaview OD, are dinghies, but have heavy metal centreplates to help increase righting moment ( as did most old dinghies inc the int 14. ) |
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Medway Maniac
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Posted: 06 Mar 10 at 6:32pm |
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OK, add categories Scow (incl. Topper), Catamaran (incl. Vortex) and swing keel/water ballast keelboats. Heavy c/b boats are generally sailed upright, are they not, so comparable with F15? Alternatively, maybe a dinghy could be defined as a boat whose righting moment when raced by 'those who know' is mainly achieved through crew weight. Might need further definition of 'mainly' as a percent. Certainly, when I was trying to come up with a reliable indication of righting moment for the purposes of my comparative performance spreadsheet, I found that the proportion of crew weight to all-up weight alone tended to be a reliable discriminator of which boats could be regarded as dinghies and which, as keelboats, had to have the boat weight taken into account for sail carrying power. For me the F15 is still a self-righting dinghy, albeit one which could do with a harsh diet... |
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chrisclark123
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Joined: 03 Apr 08 Online Status: Offline Posts: 49 |
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Posted: 06 Mar 10 at 10:47pm |
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How about a dinghy can be recovered without mechanical aid.
I.e. doesn't need a car to pull it up the slipway. |
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Steve411
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Joined: 09 Sep 08 Location: Cheddar, Somerset, England Online Status: Offline Posts: 705 |
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Posted: 07 Mar 10 at 9:49am |
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That's the Albacore and GP out then. |
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