Received: from opus.hpl.hp.com (opus-fddi.hpl.hp.com) by jr.hpl.hp.com with ESMTP (1.37.109.24/15.5+ECS 3.3+HPL1.1) id AA025953751; Thu, 9 Apr 1998 16:15:51 -0700 Return-Path: <levb@pointcast.com-DeleteThis> Received: from hplms26.hpl.hp.com by opus.hpl.hp.com with ESMTP (1.37.109.24/15.5+ECS 3.3+HPL1.1) id AA209473741; Thu, 9 Apr 1998 16:15:41 -0700 Received: from hqca1-exs2.pointcast.com (hqca1-exs2.pointcast.com [208.219.32.67]) by hplms26.hpl.hp.com (8.8.6/8.8.6 HPLabs Relay) with ESMTP id QAA17355 for <wind_talk@opus.hpl.hp.com-DeleteThis>; Thu, 9 Apr 1998 16:15:41 -0700 (PDT) Received: by hqca1-exs2.pointcast.com with Internet Mail Service (5.5.1960.3) id <2J6SPB0Y>; Thu, 9 Apr 1998 16:10:42 -0700 Message-Id: <9EC798FE84C8D1119CA0006097743AA02D2A34@hq-exs1.pointcast.com-DeleteThis> From: Lev Belov <levb@pointcast.com-DeleteThis> To: "'wind_talk@opus.hpl.hp.com-DeleteThis'" <wind_talk@opus.hpl.hp.com-DeleteThis> Subject: RE: A day in the life of a windsurfer - survival story Date: Thu, 9 Apr 1998 16:13:13 -0700 X-Mailer: Internet Mail Service (5.5.1960.3) Content-Type: text/plain
If someone knows e-mail addresses of board manufacturers, I think this
entire thread should be forwarded to them. It's good for us to be
thinking about these issues, but they should be doing so too.
Anyone knows them?
> -----Original Message-----
> From: Greg Harris [SMTP:greggh@Synopsys.COM-DeleteThis]
> Sent: Thursday, April 09, 1998 4:02 PM
> To: Multiple recipients of list
> Subject: Re: A day in the life of a windsurfer - survival story
>
> So essentially what one needs is something that can easily rotate
> around the
> mastbase so it won't wrap around everything. The top part of the
> mastbase
> already twists, and if I remember correctly I think I've seen some
> Windsurfing
> Hawaii mastbases that had a little metal loop one could tie something
> to
> around there. I wonder if some sort of thing could be made like that
> as part
> of the bottom part of the mastbase - although could also twist around
> - so if
> your joint broke you could be safe also. Or one could put like an
> extra
> "safety pin" type device almost the same way you lock the level when
> you're
> extending your mastbase height - except your locking the mastbase
> pieces
> together after you've already used the normal pin.
>
> I don't think any of these ideas are probably much good for joe
> windsurfer -
> however, there is certainly a way to engineer some sort of safety
> system with
> the mastbase. I also think it'd be worth the manufacturers to pursue
> - since
> as Carlos' experience demonstrates: failure of the mastbase to hold
> can lead
> directly to dire circumstances.
>
> So is there anyone out there who can talk to the manufacturers about a
> safety
> system? I'd certainly be interested to hear what they say.
>
> ps - thanks for telling your story Carlos. It serves everyone to be
> careful
> out there.
>
> Greg
>
>
> Bilbo Innovations, Inc. wrote:
>
> > On Thu, 9 Apr 1998, Nick Rayner wrote:
> >
> > > One good suggestion was just to make sure the sail was connected
> by some
> > > backup means to the board, not that I've done this yet but after
> reading
> > > Carlos's story I'll investigate. You could just put a second bolt
> in the
> > > mast track and attached a backup line from the sail to that
> (although
> > > you'd want it attached to the sail in a way that would stop it
> getting
> > > twisted).
> > That's the problem! If you connect the line to the sail, it will
> soon
> > make many loops around the base, unless you make sure that the
> number
> > of your falls to the left exactly equals the number of falls to the
> right.
> > :-)
> > (This is true for jibes, if you do not tack at all.)
> >
> > Sergei Burkov, Ph.D.,
> > INVINCIBLE DATA SYSTEMS, INC.
> > Military grade encryption for Internet security.
> > 1290 Oakmead Pky, #118 phone: (408) 522-4980
> > Sunnyvale, CA 94086 fax: (408) 736-6083
> > http://www.incrypt.com e-mail: burkov@incrypt.com-DeleteThis
> > Public keys posted at http://www.incrypt.com/idspubk.html
> > PGP fingerprint: 5E 7C A8 D5 45 2E 18 D3 29 04 40 12 15 53 8E 2B
>
>
This archive was generated by hypermail 2b29 : Sat Jan 05 2013 - 02:00:02 PST