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Farr 3.7
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JimC View Drop Down
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    Posted: 18 Apr 11 at 11:07pm
Originally posted by Neptune

Whats it like for speed (PY) - i'm thinking something like a contender

That would be extraordinary for a 12 foot boat.

She's very similar to a 1971 Cherub shape but less rag (and crew!). If I had to pick a trial number (as a 3.7 without kite) I would say 1100. That's faster than a contemporary (11ft) Moth (1143), but slower than a contemporary Cherub (1088). Will probably be very competitive in a breeze when she's planing upwind and down, but considerably less so in pure displacement conditions when there's no particular reason why she should be faster than a Solo.

Edited by JimC - 18 Apr 11 at 11:10pm
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Jack Sparrow View Drop Down
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Posts: 2965 		Post Options Post Options   Quote Jack Sparrow Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 11 at 10:00pm
Cheers Bob for the offer of the road trailer. I'll let you know if I need to take you up on the offer.

Neptune... My 3.7 is kite free at the moment. I have no idea what the PY would be!
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Neptune View Drop Down
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Posts: 1314 		Post Options Post Options   Quote Neptune Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 11 at 8:06pm

Jack - there is a picture on your blog showing a 3.7 with a kite....will yours come dressed that way or will i get another trapeze boat to play with in the fast handicap at Burghfield?

Whats it like for speed (PY) - i'm thinking something like a contender!
 
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Mark
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Skiffybob View Drop Down
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Posts: 842 		Post Options Post Options   Quote Skiffybob Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 11 at 1:21pm
Jack
 
We had the same problem with the hitch on Design Source when she came in.
 
I've got a roadbase you can borrow if you like.  Just take the wheels off the Kiwi trailer and strap the whole lot down to the roadbase.
 
Bob


Edited by Skiffybob - 18 Apr 11 at 1:22pm
12ft Skiff - Gordon Keeble and the Furry Fly-by
AC - GBR271 - Whoosh
B49 - Island Alchemy
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Jack Sparrow View Drop Down
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Posts: 2965 		Post Options Post Options   Quote Jack Sparrow Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 11 at 12:04pm
Originally posted by Pierre

Nice mullet :-)


Yes but this is a better one.... :)

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Jack Sparrow View Drop Down
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Posts: 2965 		Post Options Post Options   Quote Jack Sparrow Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 11 at 12:00pm
Unfortunately it's at sea. But a good idea. I think though that a flat bed trailer will be the most reliable method, as I wouldn't be 100% about the NZ ball bolt holes matching my Mazdas tow bar bracket. I might ping an email to a trailer company over in NZ and ask? Thanks for the suggestion though.
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JimC View Drop Down
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Posts: 6661 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 11 at 10:05am
Could you get them to stuff a ball in the package and bolt that on your car at the docks (don't forget to get the bolt spacing) or is it already at sea?
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Pierre View Drop Down
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Posts: 1532 		Post Options Post Options   Quote Pierre Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 11 at 9:31am
Nice mullet :-)
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Jack Sparrow View Drop Down
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Posts: 2965 		Post Options Post Options   Quote Jack Sparrow Quote  Post ReplyReply Direct Link To This Post Posted: 17 Apr 11 at 5:02pm
Umm... been fishing for a week in Ireland and the discussions shifted to MJ's N12's!

Anyway I've just found out that me Farr 3.7's got a an old NZ style 1 7/8ths trailer hitch.... which is a bummer. I'm not sure I want to take my angle grinder to the docks to fit a 50mm hitch. Looks like I will need a trailer for the trailer!

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Chris 249 View Drop Down
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Posts: 2041 		Post Options Post Options   Quote Chris 249 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Apr 11 at 1:49pm
With respect, Jim, those were very different U sections to the type that first really popped up (IMHO) in Michael Jackson's N12 March Hare.  The reasoning Michael used for his sections is pretty much identical to the reasoning used many years later by Nash when he pretty much introduced that way of thinking into NS14s and then 12s etc.  Earlier NS14s that went well, but had less influence, were definitely influenced by March Hare because their designers wrote about it.

Nash was able to take it further because of rules and technology, but the narrow U-shape "displacement" hull can easily be seen to be something that arrived rather later in the southern hemisphere and then took over from the traditional "flat vee" shape, which was of course rather forced on designers by ply construction, despite the best efforts of guys like Macca to bend ply flat along the keel line.

The dominance of the southern boats in design (rather than rule and dimension) terms may be over-rated as indicated by the last of the "open" 14 worlds when the ultimate "Aussie" 14s, the Wedges, met the Howletts etc in San Francisco.  Paul Bieker noted that “Most of the Australian hull designs have very flat bottoms, with a little rocker distributed evenly over the length of the boat, low chines, and fine bows. This style of boat is potent in flat water and 12 knots or more breeze, planing earlier and faster than other designs. However, in light air they seem to be relatively slow, due primarily to high prismatic coefficient and a greater tendency towards transom immersion. When breeze is accompanied by large chop, these boats tend to 'slap' enough upwind to restrict their powerful planing capacities, and they show a greater tendency to cartwheel downwind, forcing the crew to throttle back a bit in order to survive.”

The top Aussie 14ers confirmed Paul's information, and indicated that the rounder, narrow-stern Howletts etc were actually very potent in light and heavy winds despite being heavier, narrower and having smaller rigs.  

I suppose it also depends on where in the performance spectrum you are looking - Holt's boats had a huge influence down here, and the most popular boats include those like the Sabre and Sunburst which are no faster than their UK equivalents like Solos and GP14s/Ents.
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