Your #1 source for kayaking and canoeing information.               FREE Newsletter!
my Profile

Advice, Suggestions and General Help New Topic Printer Friendly Version

  Posted by: CEWilson on Feb-27-13 2:18 PM (EST)

John Winters, the Shape of the Canoe, has a cogent discussion of surface friction, pgs 21-22.

The formula is K=14/v, K being grain size in mils, v being in ft per second. He states a grain size of 3 mills starts increasing friction at the 3mph pace.

Bringing the pace up nearer race speed, 10 fps suggests we need a cleaner surface than that, more like 1,5 mils to minimize skin friction. 400 grit paper is 23 microns=1 mil, 600 grit paper is 16 microns, hence .75 mill, so either will do fine in prepping a scratched hull.

 Great Products from the Buyers' Guide:

Kindle / iPad Cases


Bent Shaft Canoe Paddles


Table of Contents


Follow us on:
Free Newsletter | About Us | Site Map | Advertising Info | Contact Us


©2015 Inc.