Does it matter in the handling of the craft where you place the cargo so long as you do not disturb the center of mass? So long as the load is balanced the only effect of adding cargo no matter where you put it is to make the vessel more difficult to accelerate. Is this not so? Joe s -- --- Joseph Sanford <jcasanford_at_earthlink.net> -- *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
Joseph Sanford asks - << Does it matter in the handling of the craft where you place the cargo so long as you do not disturb the center of mass? >> Actually, I think there may be one more "rat fact" which is worth mention. Load the things with the most mass, such as water, on the *bottom* of the boat. I was once foolish enough to load some of the "massier" things nearer that sheerline. Needless to say, that really did "disturb the center of mass" and decreased my boat's stability. (Yeah yeah yeah.... I can already hear the chorus of "Duhhhh.....". But there may be others out there with my same level of intelligence. Not in this group, of course.) Water on the bottom of the boat - both outside and inside. - Bill Hansen *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
-- ---------- > Joseph Sanford asks - << Does it matter in the handling of the craft where > you place the cargo so long as you do not disturb the center of mass? >> > > Actually, I think there may be one more "rat fact" which is worth mention. > Load the things with the most mass, such as water, on the *bottom* of the > boat. I was once foolish enough to load some of the "massier" things nearer > that sheerline. Lowering the center of mass (gravity on the earth) will certainly increase the stability. In the absence of good Canadian ballast rocks, contained water will help. Joe s *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
-----Original Message----- From: Joseph Sanford <jcasanford_at_earthlink.net> >Does it matter in the handling of the craft where you place the cargo so >long as you do not disturb the center of mass? So long as the load is >balanced the only effect of adding cargo no matter where you put it is to >make the vessel more difficult to accelerate. Is this not so? Joe s Yes to the first question and no to the second. There will be several other effects (and many have already been mentioned by others) but not in the context of your post. Adding weight makes the vessel more difficult to accelerate in more ways than just straight ahead. Roll, pitch and yaw motions will be slowed down and the kayak will sink deeper in the water and this will most likely change the wind/water couple (center of lateral resistance and center of windage). Moving the weight around but keeping the same center of mass won't change the wind/water couple or straight line accelleration but will affect the rotating motions. As someone said already putting the weight more out to the side will slow down the roll period. Putting weight further out near the ends of the boat will slow the response to waves (pitching) and and slow yawing movements. This change can make a kayak wetter riding and much harder to turn or spin (or to stop such motions that have been induced by outside forces--such as waves and gravity). The result is the kayak becomes harder to control. Matt Broze http://www.marinerkayaks.com *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
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