Dimples

[tim griffin]

Was sent details of a rib today check out its unusual Hull

http://www.airhull.com/LH2Uploads/It...ize_resize.JPG

http://www.airhull.com/LH2Uploads/It...ize_resize.JPG

http://www.airhull.com/LH2Uploads/It...ize_resize.JPGhttp://<br /> <br /> http://www.yo...&v=Dam7ZS59X80http://www.youtube.com/watch?feature...&v=He_XJomox5U




Tim

[Polwart]

A bit like the dimples on a golf ball which apparently reduce drag.

[whisper]

They make the ball climb on the air when the ball is spinning, however they also make the ball turn in the air if it's spinning left to right or right to left.

Hence, thats why golfers slice the ball.....

[whisper]

Originally Posted by Polwart

A bit like the dimples on a golf ball which apparently reduce drag.

So yes I think you're right, Water rushing over the dimples will cause the hull to lift and maybe feel more lighter???

Just a guess....

[jyasaki]

I seem to recall an America's Cup yacht using a similar surface (though much smaller dimples), maybe 20 years ago?

Mythbusters did an episode on a car using the dimple finish, and found it was actually effective at reducing drag (though in air.)


jky

[Kostas74]

The dimples hold air so the hull has less friction on the water.

[tim griffin]

Originally Posted by Kostas74

The dimples hold air so the hull has less friction on the water.

Clever idea must be hard for the tooling of the mold and to get a good lay up , have seen forced air under hulls to reduce viscous drag but never dimples and have seen shark skin swimsuits to reduce it also.

Very clever
Merry Christmas
Tim

[C-NUMB]

Very interesting, never seen this before. Typically developments in planing hulls originates from racing boats, but don't know has dimples already been used there.

Will be interesting to see if similar constructions will be seen on other brands also at some stage.

[Dry Run]

Has anyone seen what happens when you hit a golf ball into a lake!!!!!!

Unfortunately, I have - on far too many occasions!

[Boats&Outboards]

Originally Posted by Dry Run

Has anyone seen what happens when you hit a golf ball into a lake!!!!!!

Unfortunately, I have - on far too many occasions!

Makes sense then - it becomes a 4-stroke