[CAUT] strange rib damage

[Alan Eder]

how much pressure is exerted on the board 
when fully strung?

I seem to remember reading somewhere that at 1 1/2 degrees downbearing each string would be exerting about 3-4 pounds of downward pressure, which would yield between 700 and 1,000 pounds total.  Along these lines, I was once part of a quartet of adults (with an average weight of around 200 pounds) recruited to stand on a bridge for the purpose of setting downbearing under simulated load.  Del? Ron? Dale?


Alan Eder


-----Original Message-----
From: Dempsey Jr., Paul E <dempsey at marshall.edu>
To: 'caut at ptg.org' <caut at ptg.org>
Sent: Thu, Dec 9, 2010 7:21 am
Subject: Re: [CAUT] strange rib damage


Isn't about 4000lbs.?

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jim Busby
Sent: Thursday, December 09, 2010 3:16 PM
To: caut at ptg.org
Subject: Re: [CAUT] strange rib damage


All,

This talk about the bellyman has me wondering 2 things; have I ever 
inadvertently caused such damage, because I certainly am a large person and have 
carved many a bridge, and secondly, how much pressure is exerted on the board 
when fully strung? I think I have an idea, but certainly this is more than my 
ample 250 pounds.

Jim


 
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