[Rhodes22-list] Anchoring

[Michel Meltzer]

I think fortressanchors is using very high numbers(it make their number
look good), their a few book out their that have verified(i.e real world
value and a numeric model that you can put in values and get a
reasonable pull numbers), I remember doing them before but can find them
now, BTW you right about the scope number, that's why put the in, and
get this they change by anchor type........

BTW, anyone have the PS 3 part anchor issue handy?

-MJM  

> -----Original Message-----
> From: rhodes22-list-bounces at rhodes22.org [mailto:rhodes22-list-
> bounces at rhodes22.org] On Behalf Of Ronald Lipton
> Sent: Thursday, January 12, 2006 10:57 PM
> To: The Rhodes 22 mail list
> Subject: Re: [Rhodes22-list] Anchoring
> 
> There is a table of wind loads at the fortress site:
> http://www.fortressanchors.com/safe_anchoring.html
> It looks like 1600-1700 pounds at 60 mph for a 22ft
> boat.  The page also shows the relative holding power
> as a function of angle of the shaft with respect to the
> bottom.  Parallel to the bottom is 100%, it falls to 10%
> with a 2:1 scope (looks like about 30 degrees).  This is a faster
> loss than I had thought.  The difference between 5:1 and
> 10:1 is about 30% in holding power.
> 
> I never would have known this stuff if Bill hadn't incited
> the mob.
> 
> Ron
> On Jan 12, 2006, at 9:05 PM, Michel Meltzer wrote:
> 
> > d)I could not find the tables for windload from the last time, can
> > someone calculated look/up the load in lb for a rhode22 type of
> > sailboat, IIRC I estimated about 900lb's at the top number, but I
might
> > be high.
> 
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