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awesome....thanx for all the good tips...now were did i put that sandpaper?????????
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OK,
this is the route i took...
taped then sanded sponces and then coated with spary bedliner.......let you
know how it worked in a few days.Comment
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Guys, "rough" is not the secret. You want the bottom to get "wet" so that the water sticks to it. It is this film of water that does the trick. I know what the bottoms of the world's fastest FE boats look like because I've seen and handled them - and they aren't "rough". They were very smooth.
BTW what works on a full-scale displacement sailboat at 15 knots is not at all what's going on in a planing hull going three times that speed. And it was my recollection that Connor used mylar on his carbon-dacron wing sails, that's what gave him a speed advantage. Hmmmm.
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Does anyone have any recorded data that supports that scuffing your hull will produce any noticeable increase in speed? I'm all for going faster, but don't want to sand down the nice finish on my hull for only a fraction of a mph.Comment
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No data and it is not as obvious on a small hull but you can gps it and see what you get.
I do have some footage somewhere on the few of the big cats like CMC, etc that shows dimples (outteys not innies) in the ride pads and asked them if that was to help resistance and he said yes...I will have to dig it up but they were there. Of course you are talking a 10,000 pound boat.
You can do it or not....this is an old idea that proved out long ago. Again, you are only scuffing the shine off...should feel smooth like a babies butt...LOL
I also saw some racing boats with a sand paper mylar on the bottom....even many hydroplanes and dragboats use it. I am sure it is a spray coating but it proves they are doing something.
It works...just do it or not...no harm either way.... On a cat it is the bottom of the pads only is all I do. Hydros I do the sponson and the last few inches of the rear end that may drag.Comment
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OK GENTS,
here is the look and monday will be the test.
top speed was 41.2mph...so lets see what happens before
we all get worked up
ps:
thanx jeff i think i see the problem now,
just needed a second pair of eyes...
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well here are the results,
no diff.........speeds were the same........
looks cool so i'm going to keep it....so the answer is
smooth,scuffed,rough.........zero change......Comment
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Thats kinda what I expected. Theoretically sound, but not at this scale. Thanks Mythbusters!!Comment
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It definately isn't bogus. Scuffing that is. I sure wouldn't spray bedliner on my ride pads either. I generally just use the 3m red scotch brite pads to scuff. With that coat of bedliner, you have also gotten rid of any nice square (sharp) edges that you need for the hull to corner well at speed.Comment
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You need to read what Fluid said about 400gt sand paper not bed liner! You did it all wrong with the black stuff. they do 400 to 600 on wind surfers for speed runs. I used to do it when I raced for Bandit Boats we did lots of testing and it works if done rigt.Comment
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Does look cool but hate to see you did that. I was thinking maybe some sandpaper or somthing glued on. Scuffing will be better...BUT...no speed change means it did not affect it badly so we know that now!Comment
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EXACTLY,
had it scuffed before i spayed it....as i said ...no change...zero
i knew rd would have something to say(as always negitive),
but thats what makes the world go round...
boat turns the same..edges are just fine...wad...
and lets see some numbers..alot of talk but no data..hhmmmmmmComment
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How was that a neg. comment? It was on topic, and fact. You think you're the only person to attempt to change the ride surface of a boat? Scuffing has been done for a long time. The results, can vary from model to model. Also, If your boat is running too wet, it isn't going to make a bit of difference.Comment
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Data! Bandits gas mono went 4 mph faster when scuffed on the gun we ran it then scuffed it and ran it again all in about 5 min so there would be little change.
if done right it works
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