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phragle
10-21-2009, 10:12 PM
they just golfball dimpled a car and picked up mileage by like 17% anybody ever try dimpling a hull??
DAREDEVIL
10-21-2009, 10:16 PM
they just golfball dimpled a car and picked up mileage by like 17% anybody ever try dimpling a hull??

YES !!!! can't remember where i seen it but they did,,,small dimples tough and it picked up speed aswell.
Do u have anything new ???:sifone:
phragle
10-21-2009, 10:20 PM
how about a comparison between a hydrophylic and hydrophobic coating on the bottom.....
DAREDEVIL
10-21-2009, 10:21 PM
how about a comparison between a hydrophylic and hydrophobic coating on the bottom.....

???????????:confused::rofl:
Steve 1
10-21-2009, 10:35 PM
Surface treatment of hull bottoms as long as racing has been around. Golf Balls here:


http://www.boatdesign.net/forums/boat-design/golf-ball-boat-install-dimple-plate-20413.html
Magicfloat
10-21-2009, 10:42 PM
Y'all obviously are not familiar with the 1965 Larson "Million bubble ride". Paul Larson was into hype way before Reggie.Google it.Good stuff.
Steve 1
10-21-2009, 11:03 PM
Yes and Bertram had a test bottom with about a zillion holes in it I worked with their director of racing once upon a time a lot of stories.
phragle
10-22-2009, 12:37 AM
true lots of things have been tried before, but things evolve.. the thing that has stuck in my mind for a while now is competion swimsuits. Not up with the details but they have evolved greatly in the last couple of years with textures reducing drag considerably to the point some were actually banned, and they have gone from as minimal as possible to full bodysuits.....
Buoy
10-22-2009, 01:13 AM
As far as a Hydrophobic coating, it might be good for a short time, but my experience with Hydrophobes is they are only going to last a short time, increased friction will wear them down quickly.
As much as they have properties to be "not sticky", they also don't have very good adhesion properties to the substrate they are applied to.
Ratickle
10-22-2009, 08:22 AM
As far as a Hydrophobic coating, it might be good for a short time, but my experience with Hydrophobes is they are only going to last a short time, increased friction will wear them down quickly.
As much as they have properties to be "not sticky", they also don't have very good adhesion properties to the substrate they are applied to.

I thought a Hydrophobic was afraid of the water......:sifone:
Audiofn
10-22-2009, 08:27 AM
We tried it on windsurfers and surfboards but it is hard to tell with those because every wave is different.....
Ratickle
10-22-2009, 08:32 AM
We tried it on windsurfers and surfboards but it is hard to tell with those because every wave is different.....

In the link above there is a reference to controlled tow tests run in a tank with both.
Audiofn
10-22-2009, 09:02 AM
That is WAY more safisticated then we had :D
Wahoo 214
10-22-2009, 10:46 AM
I read earlier about the Navy micro etching tiny "scales" on subs for improved performance. Kinda like us sanding our last 10' of bottom
LaughingCat
10-22-2009, 10:55 AM
Oh boy. There shouldbe Youtube videos soon of rednecks hitting golf balls at their cars bragging about the new aerodynamics.
FASTERDAD
10-22-2009, 11:02 AM
Talk about phobic, Dare I say it, "Sailboat Racing Bottom coatings". VC-17 being the most popular. Works on powerboats as well-10% increase in speed and10% or more in fuel savings on 55ft motor yachts.Down side,so slick steering can drift and slowing down is an issue,that is if you want to slow down.
Bilgerat
10-22-2009, 11:12 AM
there was some of those little jet boats, like a Sugar Sand i saw once that had the Golf Ball treatment to the bottom.
Steve 1
10-22-2009, 11:30 AM
I read earlier about the Navy micro etching tiny "scales" on subs for improved performance. Kinda like us sanding our last 10' of bottom


I tried the scales among a a ton of other things and had a small one off Cat (a reverse) that lived
upside-down in the carpenter shop being modified with different surface cosmetics during the work week, what I found was in areas of pressurised running surface things like scales were NOT helpful but in say the tunnel and dead rise areas on the bottom where you want to avoid dragging half the sea with you they helped.
Wahoo 214
10-22-2009, 11:50 AM
"So is shark skin the future of the U.S. Navy? Studies have shown that using elastic silicone as a simple synthetic shark skin, bio-fouling can be reduced by 67%. This ground breaking invention is still in the early stages of development, but maybe one day we will be looking at a shipping industry complete with synthetic shark skin coating. The benefits are endless. By reducing drag, the shark skin can cut costs on fuel for the Navy and shipping industry. Not only is this endeavor financially profitable, but it is also environmentally friendly, as ships will be able to travel longer distances on the same amount of fuel. A green project in more ways than one"

http://www.onearth.org/node/1316
Dreamer
10-22-2009, 12:11 PM
dimppled floor pan on the underside of the big lexus
gerritm
10-22-2009, 04:09 PM
This is way too complicated. I got excited about building the sailboat with duct tape.
rainmn
10-22-2009, 09:08 PM
The bottom of one of my wakeboards looks like a golf ball.
FASTERDAD
10-22-2009, 09:15 PM
Went to west marine today-they didn't have any golf balls
DAREDEVIL
10-22-2009, 10:00 PM
Went to west marine today-they didn't have any golf balls

:rofl::rofl::rofl:
03darkshadow
10-22-2009, 10:12 PM
so a thread about mythbusters and this isnt here?

slackers

http://www.thesmartass.info/images/blog/karibyron2.jpg
DAREDEVIL
10-22-2009, 10:14 PM
so a thread about mythbusters and this isnt here?

slackers

http://www.thesmartass.info/images/blog/karibyron2.jpg

I think it is and she is somewhat HOT:sifone:
phragle
10-22-2009, 10:46 PM
http://www.television-blog.com/images/kari_byron_002.jpg

ykhSLNlx3n0
FASTERDAD
10-22-2009, 10:54 PM
Kari Byron rules! She has a baby on the way, congrats!!!
DAREDEVIL
10-22-2009, 11:59 PM
Kari Byron rules! She has a baby on the way, congrats!!!

Wonder who that was ???


But yes ,,congrats !!!!!!!
glh
10-23-2009, 01:40 PM
Wonder who that was ???Stecz.... messing up the world for everyone again!
Ratickle
10-23-2009, 01:46 PM
Went to west marine today-they didn't have any golf balls

:rofl:

DD probably bought them all, cut them in half, and is supergluing them to the bottom of his boat for Key West.....:sifone:
FASTERDAD
10-23-2009, 09:27 PM
:rofl:

DD probably bought them all, cut them in half, and is supergluing them to the bottom of his boat for Key West.....:sifone::rofl::rofl::rofl:
DAREDEVIL
10-23-2009, 09:30 PM
:rofl:

DD probably bought them all, cut them in half, and is supergluing them to the bottom of his boat for Key West.....:sifone:

Paul,,u said your not gonna tell !!!!!!!:sifone:
DAREDEVIL
10-23-2009, 09:30 PM
Stecz.... messing up the world for everyone again!

U said it,,,not me !!!:leaving: