Dulling my boats bottoms up help needed

[Mich. Maniac]

Thanks MM

I thought this was an interesting article.

http://findarticles.com/p/articles/m...02/ai_n9477872

HA HA!! Ive read that one a few times. still leaves me up in the air as far as polished surface or scuffed. The last instruction is to sand with 600 wet though. Who really knows. As stated unless you are going for maybe 68mph rather than 67.6mph there really may not be a diff. I do feel it helps.... call it the slippery boat gods but escpecially with the ABS hulls I think it helps.

[Ocean Racer]

Some are spraying wd40 on the bottom, in my mind oil on water is slicker than water on water.

Make sure there is no tree hugers or 5-0 in the area.

[Doozie870]

oops did I say wd40? suppost to read "cod liver oil"

[Ocean Racer]

well that should be fine to use no polution or pretty colors

[Xzessperated]

oops did I say wd40? suppost to read "cod liver oil"

Does that stuff really come from a Cods liver. Now you will get the fish kissers offside.
He meant to say Sunflower oil.

[Mich. Maniac]

oops did I say wd40? suppost to read "cod liver oil"

I imagine it was IN season? And you had correct license to aquire this slippery boat secret sauce? LOL!! You guys are awesome

[ice329]

I finally had the chance to run a scuffed bottom SV. I felt no differnce. I wanted to feel a differnce to justify doing it but I honestly did not. I personally would never scuff my boats, heck i wax them top and bottom. So who knows maybe there is some truth in it maybe not, how much can you be talking maybe a MPH... maybe. One thiing is for sure you can not comapare one boat against another because every one of these SV's is differnt, some are just faster.

[Xzessperated]

I finally had the chance to run a scuffed bottom SV. I felt no differnce. I wanted to feel a differnce to justify doing it but I honestly did not. I personally would never scuff my boats, heck i wax them top and bottom. So who knows maybe there is some truth in it maybe not, how much can you be talking maybe a MPH... maybe. One thiing is for sure you can not comapare one boat against another because every one of these SV's is differnt, some are just faster.

I think you hit the hammer with the nail there.

[Ocean Racer]

Does that stuff really come from a Cods liver. Now you will get the fish kissers offside.
He meant to say Sunflower oil.

Im sure im not the only one here who fishes offshore but im not offended by that comment. That oil really might come from a cod liver but you never know.

[Xzessperated]

Im sure im not the only one here who fishes offshore but im not offended by that comment. That oil really might come from a cod liver but you never know.

My comments were just in fun. That is why I put smilies after them. I hope you did not take me the wrong way.

[pompebled]

To scuff or not to scuff...

I actually did a number of testruns some years ago with two identical hulls and set-up (MHZ Flash, 700 motor, 12 cells 45K prop).

My son and I ran several charges, swapped batteries to eliminate small differences, used the same charger every time.

These boats run in the low thirties and the scuffed hull was always quicker, not by a lot, but enough to beat the other boat to the marker.

Once the reference hull was scuffed too, they ran similar speeds again.

We have scuffed our hulls with waterproof 600 ever since, winning a number of national titles (and a European).

Regards, Jan.

[ice329]

Ok again he said she said BUT... I just got off the phone with a Fountain Racing tech. I flat out explained to them the whole senerio. He asked me a bunch of questions as to the type of hull, I told him the exact rc boat I was refering to
(sv27) and the hulls design, drive etc. This is what he told me. Where speed is gained is in steping a hull. They do not wax nor scuff there racing hulls. they are just gel coated. He also said that he felt scuffing a hulls bottom would most likely slow the hull if anything. Again he said she said.

[ReddyWatts]

You can believe what Jan says is true. He and Fluid are in the same class. Kind of like EF Hutton. When they speak, people listen.

[SweetZ28]

Ok here is something that happend to me a long time ago when i was into making airboats..... the bottom of my airboat was smooth as glass epoxy finish... Now i recal one time i waxed it to try and make it faster.... but one thing i did notice when going over lilly pads with the shiny bottom on the airboat it got slowed down realy bad and stuck kind of...and actually i placed the airboat on lilly pads and when i tried to pick it up it caused a suction effect...now here is the twist ...I then sanded the airboats bottom so it was perfectly dull and did the same tests and it did not get stuck to the lilly pads no more and flew right over them..... I don't know but this could be kind of the same deal with the water hitting the normal boats bottom before and after dulling it up?

Who knows...

[pompebled]

That's typical for the difference between a dull and a shiny, waxed one.

On a scuffed hull a waterfilm clings to the hull's surface, water on water is a perfect lubricant.

I'll leave you to it.

Regards, Jan.