What’s the best way to find the centre line of the boat, from bow to stern?
I’m outfitting a kayak which has floppy pillars (so the centre rail is also loosely located). Any tips for making a centre line to work from?
Marking the centre line in a boat?
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Re: Marking the centre line in a boat?
Use a flexible measuring tape like seamstress' use. Or do a bunch of math using Pi.
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Re: Marking the centre line in a boat?
balance it on something narrow
edit: can't a guy delete his own posts. Wrong centre line - mis-read 'bow-to-stern', and ignored the kayak part, so not the best answer!
edit: can't a guy delete his own posts. Wrong centre line - mis-read 'bow-to-stern', and ignored the kayak part, so not the best answer!
Last edited by yarnellboat on Sat Apr 25, 2015 7:07 am, edited 1 time in total.
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Re: Marking the centre line in a boat?
Take measurements inside the boat from the deck/hull parting line (or seam) across to the side of the pillar. Do this on both the left and right sides. If your pillar is in the center and the boat is symmetric, the measurement should be the same on both sides. If they are not, adjust your pillar (left or right) to make them both the same.
Do this for the bow and stern pillars and mark their "correct" locations.
Your center line can then be constructed by drawing a straight line from the center of the bow pillar to the center of the stern pillar.
See page 4 of the following link:
http://www.riverelf.com/RiverElfFoamPedestalInstall.pdf
Hope that helps...
Do this for the bow and stern pillars and mark their "correct" locations.
Your center line can then be constructed by drawing a straight line from the center of the bow pillar to the center of the stern pillar.
See page 4 of the following link:
http://www.riverelf.com/RiverElfFoamPedestalInstall.pdf
Hope that helps...
Re: Marking the centre line in a boat?
Your tip is useful, and the associated document will help with the saddle install--cheers!
Re: Marking the centre line in a boat?
The tape sounds like a good idea.magicmike wrote:Use a flexible measuring tape like seamstress' use. Or do a bunch of math using Pi.
Please elaborate on the pi part.
Re: Marking the centre line in a boat?
When I read your first sentence, I thought you were being very facetious!yarnellboat wrote:balance it on something narrow
edit: can't a guy delete his own posts. Wrong centre line - mis-read 'bow-to-stern', and ignored the kayak part, so not the best answer!