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"real" weights of boards
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whitevan01



Joined: 29 Jun 2007
Posts: 607

PostPosted: Wed Jul 16, 2008 11:08 am    Post subject: "real" weights of boards Reply with quote

when board weights are given by a manufacturer are they including footstraps?

also, if the board has a daggerboard/centerboard, do you think they include that in the weight of a board?

thanks.
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human_catapult



Joined: 20 Nov 2007
Posts: 374

PostPosted: Wed Jul 16, 2008 11:31 am    Post subject: Reply with quote

Everyone knows that manufacturers lie about the weights and use airbrushes. Opening a brochure is like reading PlayBoard Magazine.
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LeeD



Joined: 12 Jun 2008
Posts: 1175

PostPosted: Wed Jul 16, 2008 11:45 am    Post subject: Reply with quote

Don't know about "lie" about weights, but I've been in the industry for over 23 years.........
All board weights...... NO straps, screws, fins, mast bases, pads, glue, or
extra H20.
No cassettes, daggers, or extra lead weights, NOT including your weight or calculated weights based on Moon's gravity.
Not accounting for lead footstraps or padz made from your bedroom comforter.
Good paint jobs account for as much as TWO pounds.
On another note, a 9 lbs slalom board is a headache to ride everyday, longer than 2 hours, or when you're slightly off on any part of the equation.
Of course, anything over 18lbs is a pain in planing conditions.
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isobars



Joined: 12 Dec 1999
Posts: 20935

PostPosted: Wed Jul 16, 2008 12:10 pm    Post subject: Reply with quote

OTOH, when I'm considering buying a demo or pre-owned board, it's very reassuring to find one that, even with straps and pads, weighs less on a good digital scale than the magazines claim it weighed new.

\m/
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LeeD



Joined: 12 Jun 2008
Posts: 1175

PostPosted: Wed Jul 16, 2008 12:32 pm    Post subject: Reply with quote

Definetely reassuring, but still you gotta do the visual and tap'ing inspection with a fine toothed comb.
Some guys sell their leaky boards after storing/spinning for extreme lengths of time, some weights misleading.
Seems bigger, heavier riders tend to favor lightweight to superlight boards.
Seems lightweights appreciate lighterweight boards, but don't need them to plane up early or go reasonably fast.
I'm in between (145lbs.), and like lightweight (13lbs with straps and fin) Zlabs sometimes, but ride 16lbs'ers about as often.
For sure lighter planes waay earlier (think bicycles), and can be faster sometimes, but comfort and easy sometimes favor heavier gear, and easy sometimes translates to faster ......
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whitevan01



Joined: 29 Jun 2007
Posts: 607

PostPosted: Wed Jul 16, 2008 12:39 pm    Post subject: Reply with quote

the reason I asked is that Exocet claims that the Pacer 300 weighs 33 lbs. I just put mine on a scale (with footstraps and daggerboard installed) and the scale said just about 40 lbs.

should I freak out?

Dennis
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LeeD



Joined: 12 Jun 2008
Posts: 1175

PostPosted: Wed Jul 16, 2008 12:52 pm    Post subject: Reply with quote

Why not remove the hardware and weigh?
Each strap weighs at least one lbs., and how many screws per?
Weigh dagger, maybe 3 lbs alone.
Weigh fin.
Mast track?
Cassette?
Padz?
Glue?
Wet with recent drowning or bone dry?
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isobars



Joined: 12 Dec 1999
Posts: 20935

PostPosted: Wed Jul 16, 2008 1:12 pm    Post subject: Reply with quote

LeeD wrote:
For sure lighter planes waay earlier


This dood named "Ken Winner" or something like that tested weight vs planing threshold and speed in WSmag minny years ago. Lighter planed earlier only when proper ooching was used. (They kept shape constant by using heavier vs lighter constructions of the same board and/or by adding weights at the mast base.)

\m/
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LeeD



Joined: 12 Jun 2008
Posts: 1175

PostPosted: Wed Jul 16, 2008 1:26 pm    Post subject: Reply with quote

Kinda like pointing two different bicycles (pedaling prohibited) downhill, one heavy, one light, and HEAVIER gets going faster and earlier, eh?
But pumping has to be included, as does pedalling, and lighter makes pumping worth about 3mph more wind than statueing like a lead weight.
And big pro windsurfers pump better than little amateur windsurfers, right?
And little competent windsurfers can pump better, for their weight, than even some big pro windsurfers, you think?
Based on my sailing years with DonMontague, Robbie and some other's.
I'm a proponent for pumping because it's great exercise, I'm getting old, and I like the range it gives me with a given sized sail. Seems with a good 5.2 and lightweight 85 liter board, the same one, I can be planing in winds from 16mph to around 30, with no real alarm. That seems like a good range for Berkeley.
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bred2shred



Joined: 02 May 2000
Posts: 989
Location: Jersey Shore

PostPosted: Thu Jul 17, 2008 11:33 am    Post subject: Reply with quote

Quote:
Lighter planed earlier only when proper ooching was used.


I could see that...

From the standpoint of getting planing, the board must lift the entire weight of itself, the rig, and the rider. Thus, a 2 or 3lb variation in board weight (for example) is a very small percentage of the overall weight of windsurfer + rider. So, for static planing (i.e., no pumping) if all else is equal, a lighter board should only plane a miniscule amount sooner than a slightly heavier board - or essentially the same time.

However, when pumping is added into the equasion, things change. Proper pumping technique involves not only pumping the rig, but also pumping the board vertically. Thus, a heavier board will have more mass which equates to more inertia and therefore more resistance to pumping. The same reasoning would also apply to a board's top speed and it's ability to stay on plane. In flat water, the heavy and light board will have approximately the same performance in this regard. However, once the seastate increases, the heavier board won't be able to keep up with the lighter board because it's inertia (or swing weight) will limit it's ability to stay on plane and to reach top speed.

sm
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