Articles
   
       
Pics/Video
       
Wake 101
   
       
       
Shop
Search
 
 
 
 
 
Home   Articles   Pics/Video   Gear   Wake 101   Events   Community   Forums   Classifieds   Contests   Shop   Search
WakeWorld Home
Email Password
Go Back   WakeWorld > Wakesurfing

Share 
Reply
 
Thread Tools Display Modes
Old     (norris_laker)      Join Date: Aug 2006       02-08-2007, 4:55 PM Reply   
Check out the latest way to surf.
http://www.break.com/index/dynamite_surfing.html

Hey Ed,

Do you think they would allow this on the Scioto River?
Old     (dennish)      Join Date: May 2005       02-08-2007, 4:57 PM Reply   
That video is unbelievable. I woudn't want to know what the blast did to the fish or neighbors.
Old     (surfnfury65)      Join Date: Aug 2004       02-08-2007, 6:40 PM Reply   
That was sick!
Old    surfdad            02-08-2007, 6:56 PM Reply   
That's so crazy - Dennis, will you call out that wave for me? :-)
Old     (bigshow)      Join Date: Feb 2005       02-08-2007, 6:58 PM Reply   
This is my second year planning Wakefest, a lot of things are going together so much easier now that I've done it once. Meeting city requirements however, is still challenging. I want to tell the city that wakefest is really cool so the city should let us do A, B, and C, but it's not that simple. I should put in explosive ordnance in my event plan to see if they pick up on it.

I saw that post on the wakeboard forum. Early in the clip they show three sticks taped together. Wikipedia says that a typical stick is 8 inches by 1 inch, another common size is 2 by 16 inches. Those sticks looked larger than 1X8. I found references for the weight of a 2X16 stick ranging from 1.5 to 2.5 pounds each. That not too much to throw, the lighter 1.5 pound stick might float, the heavier 2.5 stick should sink. A deep sinking charge should make a bigger wave, right? Hmmm, I better stop spending so much time looking in to this, might end up on a watch list.

I'd love to see myth busters test the concept.
Old     (dennish)      Join Date: May 2005       02-08-2007, 7:18 PM Reply   
Jeff,
When you hear the boom start paddling. Simple
Old     (bigshow)      Join Date: Feb 2005       02-09-2007, 9:42 AM Reply   
If we could just send surf boards to Iraq then they might use up their car bomb and IED ordnance on surfing.

Doesn't Land locked surfing make the world a better palace, that's all I'm trying to say.
Old     (poser007)      Join Date: Nov 2004       02-09-2007, 4:24 PM Reply   
Holy crap that was incredible...who come up with this stuff?
Old     (bigshow)      Join Date: Feb 2005       02-09-2007, 4:27 PM Reply   
The children of coal miners?
Old     (jrodhyco)      Join Date: Jul 2006       02-10-2007, 5:44 AM Reply   
Bad as hell!
Old    surfdad            02-10-2007, 6:07 AM Reply   
Did anyone read the comments on the site? That the video is fake, the water is only 1.5 m deep and was created for Quiksilver's fashion week? I still love the concept even if it turns out to be nonsense. :-) Is it possible to create a wave through an explosion like that? Does anyone have any ordinace experience?
Old     (bigshow)      Join Date: Feb 2005       02-10-2007, 6:52 AM Reply   
There's a Navy explosive shock test, they basically mount equipment on a barge and detonate an under water charge. I haven't personally witnessed this test. The explosive charge is pretty big and really rocks the barge, I bet that would be a big enough explosion to create a wave. It would suck if you didn't catch the wave, you'd have to plant and set off another charge.

These people might know: http://www.algor.com/news_pub/cust_app/Huber_DDAM/default.asp
Read the first paragraph to get a feel for the shock test, also see the photograph.

Or these guys might know, the Brits are supposed to be pretty good with explosives: http://www.marine.gov.uk/explosive_shock_test.htm

All of the photos show a pretty good vertical plume but no wave. I think if you took the picture after the plume fell then you might have a wave. Would that wave be big enough to ride and would it have a lip like the video I don’t know.
Old     (hawaj)      Join Date: Aug 2005       02-11-2007, 6:13 AM Reply   
video is simply fake, computer composition for QS advertizing

and trying this for real is stupid in 2 ways - extremly dangerous to you and for sure you kill everything under water.
Ask Surfrider foundation what they think :/
Old     (bigshow)      Join Date: Feb 2005       02-11-2007, 6:21 AM Reply   
But what if you did it in the Dead Sea?

I absolutely agree with you, this is far too dangerous to attempt. I'll I need is a boat to surf, that's much safer.
Old    surfdad            02-11-2007, 6:30 AM Reply   
I think we all argee it's a dangerous concept, but I was intriqued with the potential of the force. We normally push DOWN with weighted boats, but if the wave could be created with a force going UP and OUT - I may be totally off base, but it seems that the force from the explosion was in a different - what is direction the correct term? There is that one surfpark that I think Alan Bogdanoff asked about where the wave is created by dragging a wave shaped device through the water. Ed, you're the engineering genius, is ballasting a boat seriously inefficent? Is it possible to form a s'wake that is larger, longer and better formed that doesn't rely on the shape of the hull that was designed principally to minimize wake height?
Old     (bigshow)      Join Date: Feb 2005       02-11-2007, 3:24 PM Reply   
That’s a really complex problem and a little out of my field, but I’ll make a few conjectures anyway.

I don’t think an explosion would be especially efficient, sure you don’t have to move a tow boat, but you might have to move a lot more water than you would with a boat. You're also moving water with a compressible gas, that makes the problem difficult. A poorly placed charge might send a lot of the force up, not out. The energy for the explosion would decrease with the radius, I think decreasing as the square of the radius. Unless you had a very specially shaped bottom surface wave would dissipate fairly quickly

There are a series of small controlled explosions in each cylinder of your engine, you use that energy to propel your boat, and IC engines are a fairly efficient way to move your boat and generate a surfing wake. The level and energy of that wave is very consistent, relatively easy to make, and safe.

I think those amusement park surf set ups may be more efficient. In these setups a sheet of water is pumped over a fixed wave form. I’d say that an 8 to 12 foot wide form would be the minimum width for an interesting ride. So you’d need to know how much energy it takes to push a sheet of water of the form then compare that energy demand to the power required by a surf wake generating boat.

Free is best. Ocean waves have huge push, generated over miles and miles, and don’t cost a dime. My problem is that the ocean is too far away. Event with global warming I don’t expect to live near a surfable ocean wave anytime soon.
Old     (hawaj)      Join Date: Aug 2005       02-11-2007, 3:26 PM Reply   
Next adepts for Darwin prize

---
Yea that wave created by dragging shape is some idea from www.waveloch.com/flash/index.htm called Moving Reef.

Concept of creating sleek barrel wave with serial blasts of huge water guns www.vagabondsurf.com/WaveCannons.html
http://www.popsci.com/popsci/bown/2003/article/0,18881,537103,00.html

and look what new at Florida Ron Jons
http://www.twsbiz.com/twbiz/features/article/0,21214,1572522,00.html
Old     (hawaj)      Join Date: Aug 2005       02-11-2007, 3:47 PM Reply   
Surf park from Florida is probably most energy saving system - Versa Reef
http://www.aquaticgroup.com/media/pdf/WaveTek%20Surf%20Pools.pdf
Old     (poser007)      Join Date: Nov 2004       02-11-2007, 3:51 PM Reply   
Holy crap that is freaking awesome.

Reply
Share 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -7. The time now is 3:29 AM.

Home   Articles   Pics/Video   Gear   Wake 101   Events   Community   Forums   Classifieds   Contests   Shop   Search
Wake World Home

 

© 2019 eWake, Inc.    
Advertise    |    Contact    |    Terms of Use    |    Privacy Policy    |    Report Abuse    |    Conduct    |    About Us