Re: [Paddlewise] Planing

Nick Schade wrote:
> 
> At 9:36 AM -0500 1/17/02, John Winters wrote:

> >However, Dr. Savitsky pointed out that
> >the rise in CG during surfing could occur but you could not call it planing
> >any more than you could say a person falling off a building was flying
> >because he generated some lift. The distinction between planing and not
> >planing is the vertical rise caused by the boat's power not an outside
> >source.
> 
> OK, I guess there is a definition out there that precludes using the
> word "planing" when the boat is "surfing". Can you use "planing" to
> describe what is happening with a water ski? How about if you put a
> model of a planing boat in a tow tank? Is the data collected
> meaningless because the power comes from an outside source? How about
> one pontoon of a catamaran where it is the other pontoon that has the
> motor. The source of the power strikes me as a funny way of
> discriminating how a hull moves through the water.
> 
I've never seen a definition of planing that specified where the
propulsion came from.  Whether it's from a following wind in a sailboat,
a following wave in a surfing kayak, a towline pulling a skiff, or a
propellor pushing a motorboat, I'd consider them all to be planing if
their hulls rose in the water due to their movement.
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