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Author Topic: anyone know the mgu and mgm for a standard rig?  (Read 2406 times)

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Rick Allen

  • Forum - Petty Officer 2nd Class
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anyone know the mgu and mgm for a standard rig?
« on: January 13, 2006, 07:16:50 PM »

applying for a PHRF cert.  Thanx
randy
c34 "painkiller"
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Rick Allen, C34 IA Commodore
Former owner of "PainKiller", 1988 C34 MKI, Sail#746, std. rig, wing keel.

dave davis

  • C34IA - Past Commodore
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Re: anyone know the mgu and mgm for a standard rig?
« Reply #1 on: January 14, 2006, 01:27:06 PM »

YRA allows the main to fit the following dimentions:
MGU=The greater of 0.28*E+0.016*P+.85ft or 0.38*E
MGM=The greater of 0.5*E+0.022*P+1.2ft or 0.65*E
 Taken from PHRF Northern Ca- YRA Par VII
The sailmakers in the Northern Ca area will make sails to meet these rules for boats like C34's
Contack me if you need some additioal info
Good luck'
Dave Davis
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Dave Davis San Francisco, 707, Wind Dragon, 1988, South Beach
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