X-OldHeader: From harris@skolar.com-DeleteThis.com Tue Jul 17 11:29:38 2001 Return-Path: <harris@skolar.com-DeleteThis.com> Received: from opus.labs.agilent.com (root@opus.labs.agilent.com-DeleteThis.com [130.29.244.179]) by jr.labs.agilent.com (8.9.3 (PHNE_18979)/8.9.3 AgilentLabs Workstation) with ESMTP id LAA28917 for <wind_talk_ls@jr.labs.agilent.com-DeleteThis.com>; Tue, 17 Jul 2001 11:29:38 -0700 (PDT) Received: from msgbas1.cos.agilent.com (msgbas1.cos.agilent.com [130.29.152.58]) by opus.labs.agilent.com (8.9.3 (PHNE_18979)/8.9.3 AgilentLabs Workstation) with ESMTP id LAA29546 for <wind_talk@opus.labs.agilent.com-DeleteThis.com>; Tue, 17 Jul 2001 11:29:37 -0700 (PDT) Received: from SKOLAR.com (www.skolar.com [64.168.231.131]) by msgbas1.cos.agilent.com (Postfix) with ESMTP id 806D79C3 for <wind_talk@opus.labs.agilent.com-DeleteThis.com>; Tue, 17 Jul 2001 12:29:21 -0600 (MDT) Received: from skolar.com (skolar-gh.skolar.com [172.19.36.111]) by SKOLAR.com (8.9.3/8.9.3) with ESMTP id LAA17737 for <wind_talk@opus.labs.agilent.com-DeleteThis.com>; Tue, 17 Jul 2001 11:28:46 -0700 Message-ID: <3B548449.101A0664@skolar.com-DeleteThis.com> Date: Tue, 17 Jul 2001 11:30:33 -0700 From: Greg Harris <harris@skolar.com-DeleteThis.com> Organization: Skolar Inc. X-Mailer: Mozilla 4.7 [en] (WinNT; I) X-Accept-Language: en To: wind_talk@opus.labs.agilent.com-DeleteThis.com Subject: Re: Lost Board References: <003301c10ee3$1579bf70$ec7a0e0f@jm74155x>
So actually I was the big proponent of the double bolt bases about two months
ago when this subject came up. I've never thought the safety compared to the
hassle of not being able to move the base back an inch mattered. I bought two
when my latest base failed at Crissy. However, I found they were extremely and
overly floppy in terms of their strength. About one/two months later, just from
the abuse of sailing it really hard I had turned one into jello. I could turn
the whole thing around with my hand easy. I think if I landed a big jump flat
the pressure probably would have made the high part of the hourglass flex so
much it'd kiss the top of my board. I went back to a shop to try and see about
getting one that wasn't so floppy, but the guy at the shop said the recent
chinook shipments of the two bolts were really floppy... and they were. He said
each shipment is a little different in strength and marked by a little insignia
on it. Anyway, I found myself having to make a choice between strength of uni,
two-bolt base and having the webbing. Nothing had all three. Irritated, I
exchanged some of the crappy ones I bought for a one bolt, webbing design (still
Chinook, although for whatever reason, far stronger than the two bolts) in hopes
that later Chinook will start make the two bolts not so floppy (which they used
to do). So if you're thinking about getting the two-bolt, I'd compare it to
some of the other hour glass ones for strength before you buy.
greg
John Morris wrote:
> >I had a similar experience a mile out at 3rd in 4.5 SqM conditions. The
> >base had worked loose (unscrewed slightly). ...
>
> >>Mast base came out of the track. Seemed to be suddenly loose, it was ok
> >>for an hour of hard sailing. The mast & base (with nut) came free of the
> >>board at the conclusion of a jibe ...
>
> I also have had the mast base come loose at inopportune moments. I switched
> to the double-bolt mast base 4 years ago and have not had any separations
> since. I keep a base plate fixed to each board, so I just check the
> tightness every 10'th session or so. The one time a double bolt base came
> loose while sailing, the plate slid forward and the second bolt kept it from
> coming out of the track. It was a big non-event.
>
> On the down side, the double bolt base reduces the range of mast track
> position by an inch in each direction, and it is marginally heavier for
> those who worry about every half ounce. For me, the increased safety is
> worth it.
>
> My experience with double bolt bases has been very positive. I was wondering
> what others think of them.
>
> - John Morris
> Menlo Park, CA
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