For Fred's sake you should have used the calculus!Nice calc using
averages.RonWild CheriC&C 30-1STL
From: Chuck Gilchrest via CnC-List <cnc-list@cnc-list.com>
To: cnc-list@cnc-list.com
Cc: Chuck Gilchrest <csgilchr...@comcast.net>
Sent: Tuesday, June 21, 2016 1:02 PM
Subject: Re: Stus-List Roller Furling Line
Measure the diameter of the drum full of line with the sail out all the way.
Divide by 2 and multiply by pi (3.1415). That will give you the "circumference"
or length of rope for one wrap around the drum. Yes it will change as the rope
unwinds from the drum but for the sake of argument, let's use the max
circumference as a constant. Measure the distance from the drum to the furling
line cleat, taking into account any guide blocks or rollers that the rope needs
to pass through.Now furl the jib taking care to count the number of turns on
the furler from fully deployed to fully furled.
So the length calculation will be:Circumference of rope on drum times the
number of furler turns plus distance of drum to cleat plus 7-10' or so extra
rope to allow line to be handled in different spots of the cockpit.
Depending on conditions such as wind and jib sheet tension while furling, my
jib can be furled either really tight or rather loose and sloppy. Tight almost
always requires extra turns on the furler.
Chuck GilchrestHalf Magic1983 Landfall 35Padanaram MA
Sent from my iPhone
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