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Re: Skin-on-Frame: Help with boat stability!!
By:Dan Caouette (CSFW)
Date: 1/27/2012, 8:11 am
In Response To: Re: Skin-on-Frame: Help with boat stability!! (Robert Livingston)

: Also what is the "tons". Is that US or metric or british?
: What is the displacement of your test vessels in pounds? And
: what are you using for the height of the center of gravity when
: you do the stability calculations?

Freeship/Delftship uses long tons (aka British or Imperial). So one "ton" = 2240 pounds.

To my knowledge neither program allows you to set the height of gravity. It's set by the specific gravity and thickness of the shell. The programs were designed for naval vessels not kayaks and canoes. To make the CG more realistic I often trick it by adding a "paddler" (vertical cylinder) inside the cockpit. Maybe Bryan Hansel knows another way of setting it.

Messages In This Thread

Skin-on-Frame: Help with boat stability!!
Aaron McConnell -- 1/14/2012, 1:38 am
Re: Skin-on-Frame: Help with boat stability!!
Aaron McConnell -- 1/14/2012, 3:45 am
Re: Skin-on-Frame: Help with boat stability!!
Dave Gentry -- 1/14/2012, 8:47 am
Re: Skin-on-Frame: Help with boat stability!!
ancient kayaker -- 1/27/2012, 10:52 am
Re: Skin-on-Frame: Help with boat stability!!
Don Goss -- 1/14/2012, 5:10 pm
Re: Skin-on-Frame: Help with boat stability!!
West -- 1/14/2012, 7:13 pm
Re: Skin-on-Frame: Help with boat stability!!
Bill Hamm -- 1/15/2012, 4:36 am
Re: Skin-on-Frame: Help with boat stability!!
Al Edie -- 1/21/2012, 1:00 pm
Re: Skin-on-Frame: Help with boat stability!!
Allan -- 1/21/2012, 3:22 pm
Re: Skin-on-Frame: Help with boat stability!!
Robert Livingston -- 1/25/2012, 2:04 am
Re: Skin-on-Frame: Help with boat stability!!
Dan Caouette (CSFW) -- 1/25/2012, 7:41 am
Re: Skin-on-Frame: Help with boat stability!!
Jeff Horton -- 1/25/2012, 4:30 pm
Re: Skin-on-Frame: Help with boat stability!!
Robert Livingston -- 1/26/2012, 1:56 am
Re: Skin-on-Frame: Help with boat stability!!
Jeff Horton -- 1/26/2012, 3:14 pm
WOOPS!
Jeff Horton -- 1/26/2012, 4:39 pm
Re: Skin-on-Frame: Help with boat stability!!
Robert Livingston -- 1/26/2012, 9:20 pm
Re: Skin-on-Frame: Help with boat stability!! *PIC*
Jeff Horton -- 1/26/2012, 10:30 pm
Re: Skin-on-Frame: Help with boat stability!! *PIC*
Jeff Horton -- 1/26/2012, 10:32 pm
Got my images backwards *NM*
Jeff Horton -- 1/26/2012, 10:34 pm
Re: Skin-on-Frame: Help with boat stability!!
Robert Livingston -- 1/27/2012, 1:03 am
Re: Skin-on-Frame: Help with boat stability!!
Robert Livingston -- 1/27/2012, 2:03 am
Re: Skin-on-Frame: Help with boat stability!!
Jeff Horton -- 1/27/2012, 6:56 am
Re: Skin-on-Frame: Help with boat stability!!
Dan Caouette (CSFW) -- 1/27/2012, 8:11 am