100 MPH Traxxas Villain?

[oldude]

RTR option?

Dude, get a rtr and leave it alone until you learn this stuff


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HI , and thanks for the realistic response. What I have been presented with now is a Spartan with a fried Castle Creations ESC, and in replacement a 180Amp Turnigy ESC, 2 5s LiPo's and a request to fit this - and make the boat go at 100MPH. Logic says this is not going to happen - but given that I work in a hobby shop - and we pride ourselves on the level of service that we offer - I am trying to get to a realistic response - and if necessary a justification for not fitting the equipment that was supplied. The way I see it is that 37V will fry the electronics and Motor - and 18V at 5 amps will do the same because of increasing heat in the length of the run. Qhat I am really trying top find out - is what are the alternates - and how should I deal with the problem?

Please help

[Fluid]

10s on 180a esc = fried electronics...

I do not understand why some folks seem to believe that a high voltage setup requires more amps than a low voltage one. The opposite is actually true. The fastest R/C boat in the world used a 170 amp controller. My 10S race boats (41"+) seldom exceed 150 amps average draw and they are very competitive. That's 7 horsepower. My 4S race boats will often average 180-200 amps to be competitive. A small hull like either Traxxas will not need even that much power to exceed 80 mph - if the hull could be kept on the water at that speed. Headroom is always good, but a 300 amp controller is simply not needed for the OP's boat.

Tyler knows what he is talking about, he has some very fast small monos. Your customer will not get to 100 mph in any mono - he doesn't have the experience or skills to do so now. No one on earth has gone that fast in a mono with repeatability, your customer has to understand that. A better goal is 70 mph in a small mono, reasonably easy to achieve compared to 100 mph. One of the DeltaForce hulls could do this if set up perfectly, but your customer will need to start slow. Even a 50 mph mono seems fast to anyone who has not seen a 70 mph mono run. A 6S or 8S setup spinning around 35,000 rpm loaded would be a good choice in a hull around 36" without breaking the bank. 70+ mph is an achievable goal in a good hull.


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[martin]

HI , and thanks for the realistic response. What I have been presented with now is a Spartan with a fried Castle Creations ESC, and in replacement a 180Amp Turnigy ESC, 2 5s LiPo's and a request to fit this - and make the boat go at 100MPH. Logic says this is not going to happen - but given that I work in a hobby shop - and we pride ourselves on the level of service that we offer - I am trying to get to a realistic response - and if necessary a justification for not fitting the equipment that was supplied. The way I see it is that 37V will fry the electronics and Motor - and 18V at 5 amps will do the same because of increasing heat in the length of the run. Qhat I am really trying top find out - is what are the alternates - and how should I deal with the problem?

Please help

The T180esc is up to 6s max.

[Heaving Earth]

The T180esc is up to 6s max.

This is what I meant in my earlier post.
I dunno anyone who has run 10s on one of these things. I've seen 8s and a fire with one tho.

To the op, these guys on here know what they're talking about. 100 mph ain't gonna happen. You need to understand this. You have a plastic hull to start with.

The realistic answer is, you will not get 100. In fact, you will probably end up hookin this guy up with a boat that will not stay together long, then who is he gonna come looking for?
Don't be unrealistic, if you want to build this guy a nice boat, listen to the guys on here, and build him something that will perform and last.

[BILL OXIDEAN]

I think folks are thinking too inside the box. It is possible to get some incredible speeds out of that boat if someone did the extensive work it would take to hold her together.
If someone was to line the inside with say Kevlar, glass, or heavy carbon, bolted on some stout hardware, reconfigured the drive system, electronics, and motor mount they could end up with something that will exceed 60-70 without dissentigrating. as far as how it handles at those speeds has yet to be seen..

[Heaving Earth]

Yeah, at what cost? Spend a thousand bux on a boat that could be built for half the money.
I don't get it.

Oldude, good luck with whatever you choose to do. I can see this is gonna turn into a debate so I'm out.
Later man


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[T.S.Davis]

100 MPH with a mono. That's black magic right there. Even the guys that are serious about achieving maximum speeds haven't been able to get there. I'm not sure I've heard of anyone trying. You would need a perfect shape as nothing is in the water but a wiff of rudder and one propeller blade. So aerodynamic perfection would be required. My opinion at least.

Plastic hulls at 100? After the boat blows off and then re-enters the water it will explode scattering parts for the better part of 150 ft. Even the best built boats are not happy after a tumble at that kind of speed. A plastic boat would be a spectacular debris field. Remember the intro to the 6 million dollar man tv shows? Like that but with water everywhere.

Make sure there's nobody around when you run that.

[BILL OXIDEAN]

100mph probably not, but possible. 60-70+? All day.
It wouldn't cost a fortune to fabricate hardware, and line the inside of that boat with a composite material.
Blueprint the bottom, etc. Sorry guys, but I've seen some extraordinary things accomplished with determination.
I personally enjoy seeing folks believe in their project. I get gratification from the way a feat like that can fuel a boater.
Even if it explodes at 80, the guy will be HOOKED on our sport. 100mph is a SERIOUS long shot, but he can Definitely get that thing going some insane speeds with a lot of work, trial, and error.

Have a great new year!

[properchopper]

Reality Check

100mph with a Spartan is not a very realistic goal no matter how you slice it. It was designed as an attractive price-accessible fun runner to go mid-high forty mph and when upvolted to 6S a claimed 55mph. It's a plastic hull which has been known in stock form to come apart at just those speeds. I'd strongly recommend re-reading Terry's post paying particular attention to this : "Plastic hulls at 100? After the boat blows off and then re-enters the water it will explode scattering parts for the better part of 150 ft. ......A plastic boat would be a spectacular debris field"

A fairly small cadre of world-class racers can build and pilot boats that can reach or exceed 100 mph but few will attempt this with mono hulls. Even with the more suitable Cat and Hydro boats, getting there has some charming trial runs, most all of which preceded the record run : https://www.facebook.com/photo.php?v...21813569&saved

It's also important to mention that as speeds increase to the realm under discussion here that there needs to be optimum water and wind conditions and a radio capable of enough range to get the boat far away enough to provide run-up and rundown space. FLAT water and near-zero wind is a must and even so, many entertaining aerobatic episodes are pretty much guaranteed, as displayed in the above video. Even the best custom constructed dedicated race boats don't often walk away unscathed from these episodes. Sometimes "things" get in the way :

DSC05248.JPG

I understand your dilemma; you work in a hobby shop and want to satisfy a customer. Best to explain to your custy the reality of the situation and explain that in order to go 100 mph one needs to obtain and rig equipment that is far, far beyond the realm of hobby-grade items. Might even show your guy this thread. Many posters here are the ones that hold the top official speed records in sanctioned time trials which were obtained with years and years of experience and rather outlandish expense.

[mitchesx]

I'm aware of one person to go 100 mph with an electric mono. It was a gas mono made by Performance Unlimited, called the Raptor, converted to electric, with an electric hatch fabricated. This was over on Jims RC Boat dock a while ago. Below is a copy of the posted text, and hopefully I can copy the Youtube link as well. This was a specially designed hull, reinforced and setup just for this very purpose.

Ralf Moser running the International SAW 2013 - Mosernator

The fast run is at the 2 minute mark on the video and the next run he did he was able to back it up.
He is now testing and tuning for the 115 mph and beyond.
It just shows what the Raptor is capable of and is still stable going into the wind at those speeds.
Congratulations Ralf on your success.

http://www.youtube.com/watch?feature=player_embedded&v=5UgzAMXlDtI

[properchopper]

http://www.youtube.com/watch?feature=player_embedded&v=5UgzAMXlDtI

The video nicely reinforces the concept that to build and put all your money into such a fast boat you have to make sacrifices to your clothing budget (see 2:21 in the vid)

[RaceMechaniX]

I'm aware of one person to go 100 mph with an electric mono. It was a gas mono made by Performance Unlimited, called the Raptor, converted to electric, with an electric hatch fabricated. This was over on Jims RC Boat dock a while ago. Below is a copy of the posted text, and hopefully I can copy the Youtube link as well. This was a specially designed hull, reinforced and setup just for this very purpose.

Ralf Moser running the International SAW 2013 - Mosernator

The fast run is at the 2 minute mark on the video and the next run he did he was able to back it up.
He is now testing and tuning for the 115 mph and beyond.
It just shows what the Raptor is capable of and is still stable going into the wind at those speeds.
Congratulations Ralf on your success.


http://www.youtube.com/watch?feature...&v=5UgzAMXlDtI

Yeah, I believe Ralf is the first official mono over a hundred mph at a sanctioned event. A little background info, he was using a $5k power system and had reinforcements appropriate for these speeds.

Jerry @ Seaducer boats along with Mark F and Doug Smock have also come very close to the century mark, but these are respective experts and have been working at these targets for years.

[properchopper]

Mark F's T-Mono 87mph pass :

http://www.youtube.com/watch?v=D1mnA4EvJfc

IIRC the gremlins prevented further runs

[T.S.Davis]

In stock form the Spartan can not go 100. I've run one over 50 and you can feel it twisting and chasing the resulting hook created. You could reinforce it but at some point you end up fixing so many things you start to question your sanity.

Pete from Lou's Fast Electrics many moons ago worked a Traxxas Villian to death. Did everything shy of molding the hull and laying one up in glass. Maxed out at 58 I think. He would have been many hours of labor ahead to have started with something light years ahead in design. That's even more true today with all the options available.

Seaducer is a prime example. Maybe a 39" Delta. Even a scratch built Wildthing built with 1/8" stringers would be a better choice to chase that 100 mph mark. Heyy..........maybe a Wildthing with no strakes. hmmmmm.

Last time I stuffed an ABS hull over 50 it opened up like a clam shell. Tore at the seems. They were glassed but clearly not well.

[photohoward1]

I think this guy is just yanking all your chains. Has to be. This is the most entertaining thread on offshore.