Subject: [harryproa] Re: controlled self capsizing for cruiser
From: "Mike Crawford mcrawf@nuomo.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 11/29/2014, 8:21 PM
To: "harryproa@yahoogroups.com.au" <harryproa@yahoogroups.com.au>
Reply-to:
harryproa@yahoogroups.com.au

 


  You know, that's a good point.  I was only thinking about it in terms of what could go wrong with the basic mechanism in extreme conditions after the wear-and-tear of being at sea for a while.  

  I hadn't thought about what it would mean to try to drop that mast in 30'+ seas and 80 knots of wind, and then have the whole system work once it's down.  The forces wanting to move that mast separately from the boat would be insanely huge.  

  If the mast were locked in the down position, the mechanism would need to have incredible rigidity in order to avoid being buckled as the mast pokes through a wave while the boat is either climbing up or surfing down.  And if it weren't locked in place, the jarring effect on the mechanism when the mast finally reaches its limit would be even worse.

        - Mike


On Nov 19, 2014, at 2:12 PM, "lucjdekeyser@telenet.be [harryproa]" <harryproa@yahoogroups.com.au> wrote:

 

Thank you , cruisingfoiler and Mike. I'm healed ;-) if only already with the statement: " attempting this in survival conditions". Luc

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Posted by: Mike Crawford <mcrawf@nuomo.com>
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