Sea Kayaks Techniques Bulletin Board

Re: Average Speed

Posted By: Jeff The Tall
Date: Wednesday, 5 March 2003, at 8:11 p.m.

In Response To: Re: Average Speed (Petewp)

: I steadily paddle 3.6 knots [18' hull], faster naturally crossing lanes by
: over a knot. I have to believe the Ben n' Jerries factor and the 50 lbs.
: of proof have shaved off a good half knot. Anyone know how much faster id
: paddle if i were 170 lbs instead of 220lbs?

: Pete

there is a 30% difference in weight, so there is a 30% increase in displacement (not really but..) so tehre is a (30^(1/3) [ie cube root]) 3% increase in parted water (waveform drag) and a (30^(1/2) [ie square root]) 5.5% increase in wetted surface.

however both of these number arn't any good without knowing the cf for these numbers.

Messages In This Thread

Average Speed
John -- Friday, 28 February 2003, at 8:39 a.m.

Re: Average Speed
Nick Schade - Guillemot Kayaks -- Friday, 28 February 2003, at 9:40 a.m.

Re: Average Speed
Petewp -- Friday, 28 February 2003, at 3:05 p.m.

Re: Average Speed
Rob P -- Friday, 28 February 2003, at 3:16 p.m.

Re: Average Speed
Nick Schade - Guillemot Kayaks -- Friday, 28 February 2003, at 4:42 p.m.

Re: Average Speed
Bob Kelim -- Friday, 28 February 2003, at 3:23 p.m.

Re: Average Speed
Nick Schade - Guillemot Kayaks -- Friday, 28 February 2003, at 4:48 p.m.

Re: Average Speed
yakman -- Friday, 28 February 2003, at 4:10 p.m.

Re: Average Speed
John -- Friday, 28 February 2003, at 4:24 p.m.

Re: Average Speed
Nick Schade - Guillemot Kayaks -- Friday, 28 February 2003, at 4:50 p.m.

Re: Average Speed
Jack Sanderson -- Friday, 28 February 2003, at 5:59 p.m.

Re: Average Speed
Petewp -- Monday, 3 March 2003, at 11:41 a.m.

Re: Average Speed
Nick Schade - Guillemot Kayaks -- Tuesday, 4 March 2003, at 9:18 a.m.

Re: Average Speed
yakman -- Friday, 28 February 2003, at 6:10 p.m.

Re: Average Speed
Petewp -- Friday, 28 February 2003, at 6:44 p.m.

Re: Average Speed
Petewp -- Friday, 28 February 2003, at 6:54 p.m.

Re: Average Speed
Petewp -- Monday, 3 March 2003, at 12:00 p.m.

Re: Average Speed
John -- Monday, 3 March 2003, at 9:41 p.m.

Re: Average Speed
Dave -- Monday, 3 March 2003, at 10:38 p.m.

Re: Average Speed
Petewp -- Tuesday, 4 March 2003, at 2:11 a.m.

Re: Average Speed
Jeff The Tall -- Wednesday, 5 March 2003, at 8:11 p.m.

Re: Just in awe
yakman -- Tuesday, 4 March 2003, at 3:25 p.m.

Re: Just in awe
Petewp -- Tuesday, 4 March 2003, at 11:50 p.m.

Re: Average Speed
M. Hamilton -- Friday, 28 February 2003, at 10:59 p.m.

Re: Average Speed
Petewp -- Saturday, 1 March 2003, at 9:07 a.m.

No offense
M. Hamilton -- Tuesday, 4 March 2003, at 2:56 p.m.

Re: No offense
Petewp -- Tuesday, 4 March 2003, at 11:54 p.m.

Re: Average Speed
Nick Schade - Guillemot Kayaks -- Saturday, 1 March 2003, at 5:59 p.m.

Re: Average Speed
Ken Ferschweiler -- Sunday, 2 March 2003, at 5:21 p.m.

Re: Average Speed
M. Hamilton -- Tuesday, 4 March 2003, at 1:41 p.m.

hull speed for multihull boats *LINK* *Pic*
Marek Uliasz -- Saturday, 1 March 2003, at 9:22 a.m.

Re: hull speed for multihull boats
Paul J -- Monday, 3 March 2003, at 1:25 p.m.

hull speed for outrigger canoe - video *LINK* *Pic*
Marek Uliasz -- Monday, 3 March 2003, at 2:17 p.m.

Re: Average Speed-21footer
dace mcadoo -- Saturday, 1 March 2003, at 8:33 p.m.

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