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Old August 7th, 2012, 07:14 PM   #1
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Default who is into RC boats?

I saw some guys on the water the other day with some electric ones and they were pretty fast...wondering if anyone on here has any.
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Old August 7th, 2012, 07:35 PM   #2
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my uncle has a few ranging from 40-57"

powered by modified zenoah weedwacker engines. lots of fun.
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Old August 7th, 2012, 07:44 PM   #3
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I work with a guy that's into 1:8 scale ones...two stroke engines. He currently holds third place for the fastest in some class in the world...130mph I think.
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Old August 7th, 2012, 07:59 PM   #4
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I work with a guy that's into 1:8 scale ones...two stroke engines. He currently holds third place for the fastest in some class in the world...130mph I think.
wow thats pretty fast!
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Old August 7th, 2012, 08:08 PM   #5
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Old August 7th, 2012, 08:31 PM   #6
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Talk to ms chaffer. He used to own a ton but then he got back into jeeps :P
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Old August 7th, 2012, 08:39 PM   #7
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I bought my dad a Traxxas Spartan for Fathers Day, just something to play around with on our pond. It's pretty cool for an off the shelf boat, does around 35mph with the factory batteries. Upgrade to some LIPO's, and it will get into the 50's.

The only issues I have found is that it will fill full of water if you use reverse very much, and the battery life sucks. If you don't go full throttle, they last a lot longer...but where is the fun in that? I know the lipo batteries make it go much faster, but I doubt they will give it much extended run time.

http://www3.towerhobbies.com/cgi-bin...=LXBMRV**&P=ML
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Old August 7th, 2012, 08:47 PM   #8
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The lipo's make a huge difference in run time in the cars.
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Old August 7th, 2012, 08:49 PM   #9
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my brother gave me an RC sailboat with a 55" tall mast.
took the better part of a day to assemble.
4 AA batteries in the hull, 8 AA in the hand held unit.
freakin awesome toy.
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Old August 7th, 2012, 09:14 PM   #10
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The lipo's make a huge difference in run time in the cars.
Really? I may have to order a set...I figured they would drain down just as fast if not faster since they make the boat go so much quicker.
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Old August 7th, 2012, 09:19 PM   #11
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With a Brushless motor and a decent lipo battery i'm told you can get close to an hour of run time. With my brushed motor and lipo battery I get close to 45 min, In my stadium truck. I don't know about time lengths in boats though. I'd think they would be similar.
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Old August 7th, 2012, 09:21 PM   #12
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Originally Posted by 04PSD View Post
I bought my dad a Traxxas Spartan for Fathers Day, just something to play around with on our pond. It's pretty cool for an off the shelf boat, does around 35mph with the factory batteries. Upgrade to some LIPO's, and it will get into the 50's.

The only issues I have found is that it will fill full of water if you use reverse very much, and the battery life sucks. If you don't go full throttle, they last a lot longer...but where is the fun in that? I know the lipo batteries make it go much faster, but I doubt they will give it much extended run time.

http://www3.towerhobbies.com/cgi-bin...=LXBMRV**&P=ML
Kyle I have been looking at the spartan also. Looks like a pretty awesome one....have you guys tried lipos yet? How does it do in rough water?
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Old August 7th, 2012, 09:22 PM   #13
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Really? I may have to order a set...I figured they would drain down just as fast if not faster since they make the boat go so much quicker.
Lipos vs NIMH is like comparing a non turbo raptor to a turbo raptor I only run Lipos is my Helis and cars.
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Old August 7th, 2012, 09:28 PM   #14
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Haha, this is the first RC thing I have messed with since I was a kid, so I'm definitely behind the times with this stuff.

We haven't had it out in much rough water, just buzzing around the pond so far (about 4 acres). Some of the videos that I watched before ordering made it seem like it handled a little chop fairly well though.
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Old August 7th, 2012, 10:01 PM   #15
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Kyle I have been looking at the spartan also. Looks like a pretty awesome one....have you guys tried lipos yet? How does it do in rough water?
When the Spartans came out they were flaming hunks of shit. I'm not sure if Traxxas fixed them or not. But they were pretty damn bad at first.

If you are just getting into it get something made by Proboat. Trust me.

Most of their boats are fiberglass, not plastic like Traxxas, good electronics. They love to replace parts for you even when you do stupid shit too.

There is far more to be said on this topic than I feel like typing tonight.

I had a 3' cat that was would get to the mid 60's then blow off the water. Motor wise it had a hell of a lot more in it. The hull just couldn't handle it without some more tuning.

If you want to get into boats stop by RC Hobbies and talk to Ron.
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Old August 8th, 2012, 02:53 PM   #16
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Quote:
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Really? I may have to order a set...I figured they would drain down just as fast if not faster since they make the boat go so much quicker.
Nope :) LiPo batteries are amazing. Thanks to the different cell chemistry, they hold their full voltage until very near the end of their power drain. Meaning, that you get almost no slow down as you burn off the juice in the pack. This also means that you provide cleaner constant voltage to your electronics, which in turn gives you more punch/power out of the same set of equipment.

The thing you need to watch out for, is keeping the cells happy. You MUST have a LiPo capable charger, and you should make sure you have a LiPo compatible ESC. LiPo packs do not like being discharged too low in Voltage, so a LiPo compatible ESC (always make sure it's in LiPo mode, as well) will have a built in cut off. My Traxxas slash came with a XL5 ESC which is LiPo compatible, and your Spartan should have a Marine variant of that, if you've bought it in the last few years.


Come to think of it...those ESCs ship in LiPo mode, and if you never swapped it out of that, that could be why you've been seeing such poor runtimes on NiMH batteries. NiMH chemistry drops voltage as it drops in capcity, so you lose voltage very rapidly. If LiPo cutoff is enable, you'd be getting shut off before you made it halfway through a 6cell NiMH pack, as LiPo shutoff is at 3.2 or 3.3 volts per cell.


If you're shopping from TowerHobbies, I can recommend the iMax B6 Ultimate. It does require a DC power source, but most decent chargers do these days. Which LiPo you are able to charge at much higher Amp rates, which requires more input power to accomplish. I've got a Venom 4000mah that I charge at 2c, or 2xcurrent (it's typiclly not recommended to charge NiMH at much higher than 1c), which is 8 amps. Generally speaking, it's safe to charge modern LiPo batteries at 2c, or even 3c and 4c for some high end quality race packs (or even mid range sport packs if you don't mind shortening the life of the pack, and you build up slowly and don't overheat the pack).

There are some safety things to keep in mind with LiPo, as the chemistry can be volatile if mistreated, but there are many RC related sites that go more in depth with that than I ever could.
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Old August 8th, 2012, 03:05 PM   #17
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Do not get a nitro anything. Those motors are very touchy, anything wrong and they will break or just stop running which is cool in the middle of a pond/lake. Nitro fuel is expensive too. Electric is the way to go for sure. I have a nitro sport 40 hydroplane which some guys are converting to electric now and they are still as fast
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Old August 8th, 2012, 03:09 PM   #18
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Do not get a nitro anything. Those motors are very touchy, anything wrong and they will break or just stop running which is cool in the middle of a pond/lake. Nitro fuel is expensive too. Electric is the way to go for sure. I have a nitro sport 40 hydroplane which some guys are converting to electric now and they are still as fast
Plus, anymore Electric is just outright faster than Nitro. With how cheap brushless has become, and how readily avaiable LiPo is, there are fewer and fewer people running Nitro.

Even HPI see's the light, they released 'Flux' edition versions of both the Savage (which has been the badass on the block as far as Nitro monster trucks go for a long while) and even the Baja 5b (which is a 1/5th scale buggy, fricking huge).
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Old August 8th, 2012, 03:30 PM   #19
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Lipos come in several different c ratings and mah capicty. The higher the c rating the stronger the punch is off the line. The higher the mah rating the higher the run time!
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Old August 8th, 2012, 03:33 PM   #20
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Plus, anymore Electric is just outright faster than Nitro. With how cheap brushless has become, and how readily avaiable LiPo is, there are fewer and fewer people running Nitro.

Even HPI see's the light, they released 'Flux' edition versions of both the Savage (which has been the badass on the block as far as Nitro monster trucks go for a long while) and even the Baja 5b (which is a 1/5th scale buggy, fricking huge).
The only guy I saw out RC boating that had a nitro also and a mullet and like four teeth. I forgot to add he told everyone it did 75 or 80 but we never managed to catch it at it's fastest going above 45 or 55 using the radar gun.
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