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RE: Aquacraft Revolt 30 - 7/24/2012 12:42 AM   
hobby_man


 

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From: Blaine, MN, USA
Status: offline 		here is my Revolt

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RE: Aquacraft Revolt 30 - 7/24/2012 12:51 AM   
stuball56



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Status: offline 		That looks pretty good, what's the red jumper wire on the battery connections for? I have a bit more space between my stuffing tube and collet,  at least an inch, dont know if that matters. I put a piece of tubing on there to try and stop any water from entering the boat, havent had a problem so far. And on my Motley Crew, the motor is alot further from the transom than on yours, must be to get the hull balanced. Now that I foamed the front it's fron heavy a bit.

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RE: Aquacraft Revolt 30 - 7/24/2012 1:14 AM   
hobby_man


 

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Status: offline 		whats the deal with all the clearance between the drive shaft/stru/bass tube?

drive shaft od .187
brass tube id .195
brass od .215
strut id .240

the equates to a drive shaft with .01/.015 total runout

WTH?



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RE: Aquacraft Revolt 30 - 7/24/2012 1:15 AM   
hobby_man


 

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quote:

ORIGINAL: stuball56

That looks pretty good, what's the red jumper wire on the battery connections for? I have a bit more space between my stuffing tube and collet,  at least an inch, dont know if that matters. I put a piece of tubing on there to try and stop any water from entering the boat, havent had a problem so far. And on my Motley Crew, the motor is alot further from the transom than on yours, must be to get the hull balanced. Now that I foamed the front it's fron heavy a bit.



deans to traxxas connector

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RE: Aquacraft Revolt 30 - 7/24/2012 2:45 AM   
Wavekatcher


 

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From: Ben Lomond, CA, USA
Status: offline 		Thanks for posting the pictures.  I called Towerhobbies and they were nice enough to send me a UPS return label, so my defective Silver/white Revolt 30 is on her way back.  I hope the next one they send isn't  as screwed up as the first.

Seeing the pictures of what it "should" look like makes me glad I sent it back.


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RE: Aquacraft Revolt 30 - 7/24/2012 2:50 AM   
MassiveOverkill


 

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Status: offline 		Hey Wave, does that motor mount look like it could be retrofitted to the SMX?  I know I'll have to wait until you get your replacment to get a better look.

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RE: Aquacraft Revolt 30 - 7/24/2012 3:43 AM   
Wavekatcher


 

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quote:

ORIGINAL: MassiveOverkill

Hey Wave, does that motor mount look like it could be retrofitted to the SMX?  I know I'll have to wait until you get your replacment to get a better look.

 Too big and heavy for our little SMX.  I guess you could grind it down to fit



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RE: Aquacraft Revolt 30 - 7/24/2012 3:51 AM   
MassiveOverkill


 

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quote:

ORIGINAL: Wavekatcher


quote:

ORIGINAL: MassiveOverkill

Hey Wave, does that motor mount look like it could be retrofitted to the SMX?  I know I'll have to wait until you get your replacment to get a better look.

 Too big and heavy for our little SMX.  I guess you could grind it down to fit




Oh well, my motor burned up, I'm rewinding it. Thanks.

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RE: Aquacraft Revolt 30 - 7/25/2012 3:36 AM   
stuball56



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Status: offline 		Rewinding what? the motor? I didnt know you could do that with a brushless motor.

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RE: Aquacraft Revolt 30 - 7/25/2012 7:42 AM   
diy-pro


 

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Status: offline 		If you can disassemble the can you can rewind it. Not a bad move as long as you dont underwind it and loose torque.

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RE: Aquacraft Revolt 30 - 7/25/2012 11:32 AM   
MassiveOverkill


 

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Status: offline 		I rewound with 50% heavier gauage wire and dry test run ran beautifully.  I terminated in a D configuration as I wasn't too sure whether I was going to get my 3300KV rating back.  I got that and a hell of alot more.  The wet run test, the boat's hull was completely out of the water.  I'd say the boat was easily going 45-50 mph (stock is 30 mph), I could barely steer her.  I started to bring her back in when a puff of smoke came.   I got her bcak to shore with my spare boat and fishing pole.

I'm going to do the exact same wind, but terminate in a Y configuration.  It should put me closer to stock KV, probably a little less, but then I should be able to prop up.  Sorry to hijack Wave, but if your motor ever gives up the ghost (he also owns the Super Mono X) tihs is the only way to repair it as you can't get spares.

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RE: Aquacraft Revolt 30 - 7/31/2012 9:03 PM   
Brad Mc


 

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I just got the Aquacraft Revolt last week.  This is my first boat, used to fly planes.  I am also new to the lipo batteries.  I have to be honest, they've kinda got me freaked out, lol.  I got 2 of the GrimRacer 7.4 5000 mAh batteries and the DuraTrax Onyx 245 charger.  I've been doing a lot of reading about the lipo batteries, haven't charged them yet.  I have lots of questions   When running the boat, what kind of run time should I expect with the battery packs I have?  How do I know when the batteries are gettin low? Roughly how long does it take to charge them?

Any help/insight anyone can give, I'd certainly appreciate it, thanks!

AquaCraft GrimRacer LiPo Speed Pack 2S 7.4V 5000mAh 40C



< Message edited by Brad Mc -- 7/31/2012 11:01 PM >

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RE: Aquacraft Revolt 30 - 8/1/2012 1:44 PM   
diy-pro


 

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Status: offline 		Lol people like you is the reason lipos have to be specially shipped jk. Havnt popped my lipo or brushless cherry either no worries . Massive overkill good job lol. I love rewinding motors too did you use 200celcius magnet wire?!

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RE: Aquacraft Revolt 30 - 8/4/2012 5:18 AM   
Dan S



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quote:

ORIGINAL: Brad Mc

I just got the Aquacraft Revolt last week.  This is my first boat, used to fly planes.  I am also new to the lipo batteries.  I have to be honest, they've kinda got me freaked out, lol.  I got 2 of the GrimRacer 7.4 5000 mAh batteries and the DuraTrax Onyx 245 charger.  I've been doing a lot of reading about the lipo batteries, haven't charged them yet.  I have lots of questions   When running the boat, what kind of run time should I expect with the battery packs I have?  How do I know when the batteries are gettin low? Roughly how long does it take to charge them?

Any help/insight anyone can give, I'd certainly appreciate it, thanks!

AquaCraft GrimRacer LiPo Speed Pack 2S 7.4V 5000mAh 40C




Brad,
make sure you do charge your batteries before you go out on your first run, Lipo's are shipped at approx 50% charge (called storage charge), so charge them up.
To be able to give you an accurate answer on how long of a run time you will get is not that simple.
Run time will vary with each driver, do you drive flat out all the time, conservative or a mix of both? see what I mean.

Start will a full charge, go out and do a mix run, Do that for lets say 4 minutes (approx), bring your boat in remove your pack/packs and let them settle/cool down for approx 5 minutes.
If you have a battery checker to check how much percent is left in the battery or if your charger is capable to do that, do it. You want to have 20% left in your pack, no less.
If you don't have a battery checker or your charger can't do it, charge them up ( I do balance charge 98% of the time), once the cycle is complete look at how many mAh was put back into your pack, if 80% was put in than you know that with 4 minutes you are right on the money, if you only put in 50% than you can run maybe 5 or 6 minutes.
Do that until you have your target time and %.

Another way to do it is if you know how much the setup can pull in Amps, do the math.

Dan.

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RE: Aquacraft Revolt 30 - 8/5/2012 10:24 PM   
Got RPM


 

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Status: offline 		A club member has had a Revolt for a couple months, and the more I see it run the more impressed I am with the boat. All he has done is change to an m445 prop with some strut adjustments and he's getting consistent 44 mph runs. It handles great with excellent speed and reliability.

As for LiPos, be aware that low end packs may work fine in low amp draw applications like the Revolt (70-80 amps average) but beware of running them in high power setups. The pack below worked fine in the Revolt, but running them for less than two minutes in a P Sport Hydro setup gave this result - fire, smoke and drama.




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RE: Aquacraft Revolt 30 - 8/6/2012 12:48 AM   
NobodyFamous


 

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Status: online 		that LiPo should sustain a 200 amp draw - did it drop below 80% DOD?  Or was the setup drawing more then 200 amps continuos?


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RE: Aquacraft Revolt 30 - 8/6/2012 1:58 AM   
Foamaholic



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Status: offline 		Or was the C rating wrong?

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RE: Aquacraft Revolt 30 - 8/6/2012 2:36 AM   
Got RPM


 

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quote:

that LiPo should sustain a 200 amp draw - did it drop below 80% DOD?  Or was the setup drawing more then 200 amps continuos?


You can miss the point when you struggle to make excuses for the burn-down.....cheap LiPos simply cannot be trusted. Was the label a lie, or was the maker's QC terrible? The pack shown was one of two in the boat, running in series. Both were fully charged. The other pack had 50% remaining and was 120*F. You be the judge...

You buy a cheap pack and then you don't have your money and you may not have the pack - or if you are unlucky enough then you don't have your boat either. Doesn't happen every time of course, but the risk is there if you use them in high amp draw boats. Limited motors and 70-80 amps should be no problem.

This is just a warning for those who wonder about LiPo safety. What you do with the information is up to you.




.


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RE: Aquacraft Revolt 30 - 8/6/2012 2:57 AM   
NobodyFamous


 

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Status: online 		I was just curious as to the amp draw setup.  I agree, label is likely a lie.


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RE: Aquacraft Revolt 30 - 8/6/2012 11:30 AM   
siberianhusky



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Status: offline 		With 5000mah 2s packs you will get about 4 minutes runtime, packs will then be at about 3.7x volts resting voltage and will take close to 80% of the capacity.
Don't charge your batteries unattended and charge on a fire proof surface just in case something does happen, it's very rare if you use common sense.
Bring them down to storage voltage (3.8v) when you're done with them and they will last longer.
I don't balance charge at the pond, no need if you use good quality batteries, the manufacturer matches the cells better in quality packs and they discharge/charge evenly. I balacne charge before heading out then it just a normal charge. Higher quality batteries can also stand higher charge rates.
I used to have more batteries until the cheapies started failing, now I'd rather buy one set of good batteries instead of a few sets of cheapies.
The other thing that changed my mind was getting a data logger, I thought some of my batteries were better than they were until I saw the voltage sag under load.
Congrats on the Revolt, a new guy came out last weekend with one, very nice running boat, I really like the red ones but thats usually my favorite colour anyway. His ran pretty well right out of the box, a couple little adjustments and it flew!
I've actually tried to get a few old packs to go up in flames, no luck, had some heat and smoke but thats it. Shot one with a pellet gun, cut one almost in half with a shovel, left one lying in my driveway for a couple weeks. Nothing! I know fires do happen on occasion and it used to happen more often I just haven't been able to cause one intentionally! Maybe they have to have more of a charge to have anything happen.
You're on the right track, you've got a good boat and quality packs, charge em up and have at it!
Time to have a morning flight, enjoy some coffee and figure out what to do with my Civic Holiday! Beautiful calm sunny morning for flying. Maybe go boating this afternoon. Spoiled! I can fly out my backdoor and have a nice spot to run boats less than a half mile away.

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RE: Aquacraft Revolt 30 - 8/6/2012 3:30 PM   
Brad Mc


 

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Status: offline 		Dan,

Thanks for the info.

I do not have a battery checker, sounds like I should get one!  Any recommendation as to what exactly I should get.  Again, I'm all new to the Lipo world and doing my best to grasp everything there is to know about them.  I assume any lipo battery checker I can find on Tower Hobbies will suffice?

I ran my Revolt twice this weekend at a local lake.  My first run was about 5 minutes, yesterday went for about 10 minutes.  I didn't run it hard either time.  Wow, what a great boat!!  I love it!

Thanks!

Brad

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RE: Aquacraft Revolt 30 - 8/6/2012 4:15 PM   
siberianhusky



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Status: offline 		I only use those cheap battery checkers to make sure my I'm grabbing charged packs, Just about all my buddies have them including me and they all give different readings on the same battery! Mine doesn't even read the same between the cells in 2s packs! I know it's the checker as I tested it against my DVM.
Does your charger not have a display to tell you pack voltage and how much amperage went back in?
We get about 4 minutes of full speed running out of our RTR boats around here with 5000mah, There are UL-1's Stilettos, SV-27s, Revolts (well one now!), Motley Crews. All draw about the same current.

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RE: Aquacraft Revolt 30 - 8/7/2012 3:41 AM   
hobby_man


 

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quote:

ORIGINAL: Brad Mc

I just got the Aquacraft Revolt last week.  This is my first boat, used to fly planes.  I am also new to the lipo batteries.  I have to be honest, they've kinda got me freaked out, lol.  I got 2 of the GrimRacer 7.4 5000 mAh batteries and the DuraTrax Onyx 245 charger.  I've been doing a lot of reading about the lipo batteries, haven't charged them yet.  I have lots of questions   When running the boat, what kind of run time should I expect with the battery packs I have?  How do I know when the batteries are gettin low? Roughly how long does it take to charge them?

Any help/insight anyone can give, I'd certainly appreciate it, thanks!

AquaCraft GrimRacer LiPo Speed Pack 2S 7.4V 5000mAh 40C





I have a new in the box eletricfly power meter $35 shipped, its on Ebay,,,, they are $46 every where

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RE: Aquacraft Revolt 30 - 8/7/2012 9:40 AM   
diy-pro


 

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Status: offline 		next time post a link you goob. I tried finding yours and i found a cheaper one for 18.58!!!

  http://www.ebay.com/sch/i.html?_nkw=rc+watt+meter&_sacat=0&_odkw=rc+power+meter&_sop=15&_osacat=0&_from=R40

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RE: Aquacraft Revolt 30 - 8/15/2012 6:05 PM   
hobby_man


 

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quote:

ORIGINAL: diy-pro

next time post a link you goob. I tried finding yours and i found a cheaper one for 18.58!!!

  http://www.ebay.com/sch/i.html?_nkw=rc+watt+meter&_sacat=0&_odkw=rc+power+meter&_sop=15&_osacat=0&_from=R40



yup, Cheap!

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