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cantered centre boards ? is this allowed #269020
02/03/14 03:58 AM
02/03/14 03:58 AM
Joined: Oct 2012
Posts: 104
gold coast
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fast energy Offline OP
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fast energy  Offline OP
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Joined: Oct 2012
Posts: 104
gold coast
hi all
I need some technical help with lining up centre boards in new hulls
would any one know the rake and degree of canter angle the centre boards are allowed
I have building plans but can not find this info

help would be greatly appreciated
as this weekend I would like to finish my boat
thanks


Brett Kelly
Fast Energy
Gold Coast
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Re: cantered centre boards ? is this allowed [Re: fast energy] #269021
02/03/14 05:16 AM
02/03/14 05:16 AM
Joined: Apr 2007
Posts: 432
McCrae Y.C. Mornington Peninsu...
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Simon C Offline
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McCrae Y.C. Mornington Peninsu...
5.11 The leading and trailing edges of the centreboard slots shall be parallel and within 10 degrees of the perpendicular from a straight line along the tops of the main and rear beams.

From the building rules and restrictions, available on the national website.

Cheers


Simon
Taipan AUS341
Re: cantered centre boards ? is this allowed [Re: fast energy] #269024
02/03/14 06:48 AM
02/03/14 06:48 AM
Joined: Oct 2012
Posts: 104
gold coast
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fast energy Offline OP
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fast energy  Offline OP
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Joined: Oct 2012
Posts: 104
gold coast
thanks Simon
does that mean by saying centre board slots they are referring to the leading and trailing edges of the centre board
but no canting angle referred to

im not trying to break any rules or stir up a big debate but interested in developing new ideas
thanks


Brett Kelly
Fast Energy
Gold Coast
Re: cantered centre boards ? is this allowed [Re: fast energy] #269066
02/04/14 01:44 AM
02/04/14 01:44 AM

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thricebitten
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thricebitten
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Hi Brett,

It's my understanding that if it's not in the building intructions, it's not allowed.

Before doing anything that is not in the building instructions, I would consult the National Technical Officer of the NMCC, Tim Shepperd.

I think you will find that canting is not a new idea to Mossies, builders have been trying to push the rules on Mossies since the 70's most things have been tried by somebody at some stage, but many learnt the hard way that they where not allowed.

Last edited by thricebitten; 02/04/14 01:49 AM.
Re: cantered centre boards ? is this allowed [Re: ] #269067
02/04/14 02:11 AM
02/04/14 02:11 AM
Joined: Aug 2011
Posts: 182
Grafton, NSW
Greg/Debra Offline
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Posts: 182
Grafton, NSW
Originally Posted by thricebitten
Hi Brett,

I think you will find that canting is not a new idea to Mossies, builders have been trying to push the rules on Mossies since the 70's most things have been tried by somebody at some stage, but many learnt the hard way that they where not allowed.


Hi Brett,

I think Gary is right. The old boat we just bought, 1140 has canted boards. The boxes are perpendicular to the decks, but the boards are smaller than the boxes and there is packing inside the boxes which makes the boards canted.

Last edited by Greg/Debra; 02/04/14 02:20 AM.

1140 Gadfly
1434 J.I.B.E.
1727 Atreus
Re: cantered centre boards ? is this allowed [Re: Greg/Debra] #269069
02/04/14 03:08 AM
02/04/14 03:08 AM

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thricebitten
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thricebitten
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Hi Greg,

so the packing is on the sides of the centrecases?

Re: cantered centre boards ? is this allowed [Re: fast energy] #269071
02/04/14 03:51 AM
02/04/14 03:51 AM
Joined: Aug 2011
Posts: 182
Grafton, NSW
Greg/Debra Offline
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Greg/Debra  Offline
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Posts: 182
Grafton, NSW
Hi Gary,

There is foam packing in the top aft ends of the cases, pushing the tops of the boards to the forward ends of the cases. On the bottom the forward ends of the openings have been filled with fibreglass, making the openings smaller, and aft.

1140 is a Carter boat as is 1434, but they are quite different. Seems like Bruce Carter made quite a few changes along the way.

Last edited by Greg/Debra; 02/04/14 04:02 AM.

1140 Gadfly
1434 J.I.B.E.
1727 Atreus

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