(Fwd) Re[2]: Broken Universal & Rescue (long)

From: Paul Delzio (pauld@delzio.corp.sgi.com-DeleteThis)
Date: Thu Jun 15 1995 - 09:16:44 PDT

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From: "Paul Delzio" <pauld@delzio.corp.sgi.com-DeleteThis>
Message-Id: <9506150916.ZM25104@delzio.corp.sgi.com-DeleteThis>
Date: Thu, 15 Jun 1995 09:16:44 -0700
To: wind_talk@opus.hpl.hp.com-DeleteThis
Subject: (Fwd) Re[2]: Broken Universal & Rescue (long)
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--- Forwarded mail from wind_talk@opus.hpl.hp.com-DeleteThis

Date: Wed, 14 Jun 1995 13:04:08 -0700
Reply-To: wind_talk@opus.hpl.hp.com-DeleteThis
From: EKarver@CCGATE.SPOT.COM-DeleteThis (Karver, Eric)
To: Multiple recipients of list <wind_talk@opus.hpl.hp.com-DeleteThis>
Subject: Re[2]: Broken Universal & Rescue (long)

     Agreed. Six weeks ago I failed to check if my two piece mast was fully
     seated after rigging.
> This has happened to me at Waddell early this spring. Fortunately it only
'cracked' and I was able to sail back in unassisted...yet in hindsight I
clearly remember being frustrated with the proper downhaul tension and mast
base pin positioning being off...but in typical rigging frenzy I ignored these
problems. Also just 2 weeks a go I was sailing with somone who is notoriously
prudent and efficient with his equipment and he did the same thing with his
2-piece mast. Consequently he spent most of the afternoon readjusting
everything until he figured out the mast was not mated properly.
There is a rule in carpentry;"Measure twice cut once"..."Check twice and sail
once"....
     I have rigged this mast dozens of times without
     incident, yet on my first reach away from Crissy field my mast snapped
     and I endured a rather cold and humiliating swim back to shore.
     Thankfully the tide was flooding and I wasn't too far into the
     channel. I never leave shore now without checking and re-checking all
     of my equipment.

Eric Karver

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Subject: Re: Broken Universal & Rescue (long)
Author: wind_talk@opus.hpl.hp.com-DeleteThis at INTERNET
Date: 6/14/95 1:54 PM

>> > I wonder if we could do some sort of a large survey, maybe thru
>> > "Windsurfing", on how many hours equipment lasts so we can replace it
>> > before it gets close to the -2 sigma breakdown time?
>>

I have found out that a thorough check on the equipment at the time of
rigging goes a long way towards avoiding equipment breakdown on the water.
Hang glider and sailplane pilots perform such a check at the beginning of
each flight for obvious reasons. I think that at sites such as 3rd Av one
should inspect his or her rig with the same attention that a hang glider
pilot does. Many breakdowns could be actually prevented by examining
critical parts such as the universal (bend it to see if any hairline cracks
are present, check if the nut is unscrewing), boom front end (corrosion,
cracks), clew, skeg saver (cracks), mast (cracks), lines, etc... Last year
while doing such a check I noticed two cracks forming on the plastic part
of my Nautix front end. This maybe saved me a long swim to shore.

Pierre St Hilaire
Interval Resesarch Corp

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