Probably somewhat empirical number, but it has to change depending on the shape of the boat (the more beamy it is, the less it would sink with the same increase of weight), doesn’t it?
Marek 1994 C270 ”Legato” (quite beamy) Ottawa, ON From: CnC-List <cnc-list-boun...@cnc-list.com> On Behalf Of Jim Watts via CnC-List Sent: Monday, October 29, 2018 21:51 To: 1 CnC List <cnc-list@cnc-list.com> Cc: Jim Watts <paradigmat...@gmail.com> Subject: Re: Stus-List C&C 35-3 Actual Drive Swiped off the internet: POUNDS PER INCH IMMERSION (PPI): The weight required to sink the yacht one inch. It is calculated by multiplying the LWL area by 5.333 for sea water or 5.2 for fresh. The PPI usually increases as the hull sinks into the water as the LWL area is also increasing due to the shape of the hull above water. Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC
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