What is scuffing and how do i do it?

[scubasteve95]

Come on Steve. Ya can't quote traxxis as the foremost authority on boats. They've only just started in boats.

I don't get along with some of these guys either. Mostly because expereinced opinions get crapped on.

Just consider all the opinions and then form your own. Do you have any faith in those providing you their thoughts? Some yes. Some not so much. Heck one of them was a naval engineer that has written books on RC boats. If traxxas knows more than us fools go with their guidance. Some of us can live with that.

For me, I'm going with what ever the fastest guys I know are doing. I knew a guy that swore by Rainex. Worked for him.

i like traxxas never steered me wrong before.....
never wanted to get into all this, was only chating with another guy then
all this happened..but you are right i have said it before to
do your own homework and go from there,everyones got an imo
some just try to force theres on others.

[SweetZ28]

i like traxxas never steered me wrong before.....
never wanted to get into all this, was only chating with another guy then
all this happened..but you are right i have said it before to
do your own homework and go from there,everyones got an imo
some just try to force theres on others.

One thing you got to understand is on boards like this there is no way you are going to only chat about something with one other guy....if you think otherwise i would not bother posting on boards then.

on boards topics can change and go in a totally different direction from what even the original poster posted just the nature of the message board.

[Rumdog]

Yep. Take Traxxas' word over seasoned FE experts.(not myself) I guess you just don't get it. Read the posts. Read through other threads. Don't take everything so damned personal either. Traxxas is new to FE boats by the way. Just like you.

[old guy]

Yep. Take Traxxas' word over seasoned FE experts.(not myself) I guess you just don't get it. Read the posts. Read through other threads. Don't take everything so damned personal either. Traxxas is new to FE boats by the way. Just like you.

Ya what do I know I only have about 7 national titles for racing RC boats and used to build them with Bandit boats..

some poeple used to use graphite on there boats> we tested this to and found the same inincrease in speed. I was told by a engineer that the graphite is like about 800gt sandpaper so it would hold the water also.

[CornelP]

Short story: same boat, same setup, max speed shiny: around 65kph, max speed scuffed: around 65kph (GPS is not that accurate) BUT mA (out of a 4S 5000mA) over a 6 min race shiny: 4100, scuffed: 3900. Each setup has seen 2 6min rounds.
PS: as for guys like Traxxas: would you buy a boat that looks used when new?

[forescott]

Rumdog would you just give scubasteve95 his soother bake so we do not have to listen to him whine any more.

Um..... Whats a soother bake??

[forescott]

I understand the concept of scuffing, and have no doubt that it works on some level, but I'm thinking that it might not be worth the effort in a rc boat hull @ 40-50mph. I imagine it would be near impossible to record any before and after data since there are soo many other variables that come into play when recording top speed on a particular run. If I were a racer I would definetly do it, but as a sport boater....... probably not.

[dreamland s4]

jerry, jerry!!!!

lol cmon guys were here to help eachother in the end....

[carlcisneros]

the scuffing of the ride surfaces especially on outriggers deffinately DOES work.I mainly run Nitro and I have done this on my boats (scuffing) and it works beautifully.

One of the main things on the ride surface is making sure EVERYTHING that touches the water
is STRAIGHT/FLAT and has SHARP edges. If the hull is one of the ABS units, you will see that the edges are of a rounded nature. Rounded surfaces tend to suck water so to speak and to not ride/glide (if you will) across the waters surface.

So, scuffing and making sure the ride surfaces are nice and sharp are the things that you should be looking for when either building a hull or choosing a hull to set up and run.

Just my 10 cents worth folks.

Carl

[Jeff Wohlt]

There is really no EFFORT to lightly sand with water and some 600 paper. Takes about 5 minutes.

[martin]

Here is what i found in real running conditions, Nothing very scientific about this test though. I figure the smaller the boat = smaller less powerfull motors involved would benefit from any increace in potential speed gains over say large heavier boats with very powerfull motors. I have a 15"v mono boat that goes around 45mph on 3s with a 3600kv outrunner helicopter motor on Octura x435 (sharpened & balanced). The problem at 45mph the hull has reached its max potential & running literaly right up on the very last part of the v & just the prop the motors torque along with the boats speed will put the boat into a torque roll at 45mph & hits the bottom of the lake at times causing severe damage to the hull / prop & just about any thing else, Even torque rolls when it dosnt hit the bottom are so severe it rips parts like battery & esc trays out. So i decided to put another motor in to tame things down slightly & fitted a 3450kv outrunner motor which was also a less amp motor & ran this motor on the same lake with perfectly calm water (like a mill pond on all tests done). The boat was completelly stable & never went in once despite trying with even longer flat out runs. Went out again same conditions & again never went in once, Speed on this new motor had the edge slightly taken off at max over original motor id used & like i said it ran very happy though still fast. Will continue.

[martin]

Continued, I decided to wet flat the bottom of the hull with 600 wet & dry in linear strokes ( front to back ) & went out the next day with exact setup in again perfect conditions. ( no wind what so ever). Boat speeds were noticably back up to origanal speeds with the boat going in a number of times & hitting the bottom & this was with the less powerfull motor. All i know is i ran for 2 days on this slightly lower powered motor with no problems what so ever on the same lake in the same place in perfect conditions & after sanding the hull went home with hull damaged yet again. Also exceleration is back up to origanal motor speeds with boat rolling on exceleration. This is nothing very scientific i know but im convinced about the layer of water sticking to the rough hull so you have a thin layer of water that is stuck to the hull passing over water compared with the highly polished finish where its the hull bottom sliding over the water. Like i said these are only 15" hulls with around 300 watt motors so its probably more noticable with this level of power. The decision i have to make is whether to try the original more powerfull motor again now, But only on a deeper lake. Martin.