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What happens if the tube submarines? A lot more force than a single
wakeboard can apply.
"Netsock" wrote in message
...
"Mark" wrote in message
...
The loads placed on a pylon are much greater for a wake boarder than a 1
or
2 or 3 man tube (yep, you gotta allow for them). A wake boarder only
puts
a
load on the pylon up to what he can hold. A tube can put much much
higher
load on the pylon.
Huh?
Think worst case, as any designer or engineer will. A 1
man tube with a 200 pound person submerging (200 lb person plus maybe an
additional 300 or 400 lbs of drag). Or the same setup being whipped out
on
a
turn. How about a 2 man? Or 3 man?
There are a lot of variables that need to be considered, before
proclaiming
something for sure, such as...rope length, pylon height, pylon placement,
boat power, boat speed, hull size, weight being pulled, and type of
apparatus being used.
Example, for a 290 hp inboard ski-type boat, with a center floor mounted
pylon, a heavy slalom skier on a 65' line, would induce the most
force...both at start up, and hard cuts. A 2-4 person tube on a 70' line
would be next, but this is dependent on the handling of the boat. The tube
riders themselves could not increase the "pull" on the boat...its all
about
the driver, and how fast he wants to go. I've felt some great pulls from
jumpers. They like to dig hard in a cut, and it can easily be felt by the
driver, but not as hard a slalom skiers. Id say wake boarders are next.
Given the slower speeds, a 'boarder can only "pull" so much on a cut,
especially with a short line that is typically used. And then there's the
kneeboard. Good riders can produce a good pull, but it would be light.
Again, the short line and slower speeds just don't allow a lot of
poundage.
Dead last is barefooting. That's right...even at speeds of up to 52 mph,
the
'footer just doesn't have "grip" to do virtually any type of cutting. It
not
uncommon for me, not to know, when a footer goes down.
Now just to show some difference, take your heavy slalom cutter out on a
jet
drive boat, and watch him pull the boat around all over the water.
--
-Netsock
"It's just about going fast...that's all..."
http://home.insight.rr.com/cgreen/
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