[Public-List] Infinity # 57

[Richard J Hughes]

If available . please tell when Whitby started using an I-beam vs laminate. 
I recently bought # 438 (1970) which has headliner to hide the main beam, 
but I think there may be issues, due to visable bubbling in the aft side of 
the main beam liner, but no moisture if I stick a drill into it.
Thanks


--------------------------------------------------
From: "Roger L. Kingsland" <r.kingsland at ksba.com>
Sent: Monday, January 11, 2010 11:21 AM
To: <cbcurrier at spinrx.com>; "'Alberg 30 Public List -- open to all'" 
<public-list at lists.alberg30.org>
Subject: Re: [Public-List] Mast Beam Repair

> C. B.
>
> A foot of deflection!  That's not a mast beam, it's a crossbow.  I can't
> imagine my reaction upon  observing that, especially in bad conditions
> (probably would involve a combination of swearing and drinking;  something
> like holy wee wee Batman, pass the Scotch).  I guess it underscores the 
> need
> for a good repair.
>
> Has anyone tried to calculate the compression load of the mast?  I am
> exploring adding wood posts  under my beam near the door jambs to reduce
> twist and need know the load on each.
>
> Best,
>
> Roger 148
>
>
> -----Original Message-----
> From: public-list-bounces at lists.alberg30.org
> [mailto:public-list-bounces at lists.alberg30.org] On Behalf Of C.B. Currier
> Sent: Monday, January 11, 2010 10:51 AM
> To: Alberg 30 Public List -- open to all
> Subject: Re: [Public-List] Mast Beam Repair
>
> Folks,
>
> The simple fact that Whitby went on to change out the original design from 
> a
> laminate beam to an aluminium I-Beam suggests to me that repairing the old
> design is a waste of time. Taking advantage of the sistering repair is 
> smart
> and responsible seamanship.
>
> I have watched Infinity's Beam flex a foot or more in 30 knot winds in big
> chop. Once I saw that I was convinced that the upgrade was necessary. Take
> it from those of us who have raced these boats in the toughest of 
> conditions
> - Mike Lehman, Larry Morris, and myself - do the upgrade and ensure that
> your boat will be in the best of possible condition to handle what A30s 
> are
> really made for.
>
> --
> C.B. Currier
> Infinity #57
> Daybreak #458
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