Thanks. I made it out of some aluminum bar and L stock. I plan to draw it on on inventor and make it a solid one piece item.You cant see it in the picture but it is rubber isolated as well.I It was pretty straight foward though. Its tight to get the batteries in the cockpit but its do-able. Im truly stumpped about props\s lipopacks combos.For now i will try an x457 and a x460 on 10s and 12s lipo . After looking at some of the 7th scale footage im thinking 8s and a real healthy prop the problem is you need a beefy esc something that can do 200 amps continuous. Im working on such an item as we speak.
Littlescreamers 63mmwater jacketed Motor
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Hey guys do you think the screamer could stand 200 plus amps @ 8s lipo?Last edited by Xfactor; 05-11-2010, 10:57 AM.Comment
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Since only a few people have run this motor and with no eagle tree equipment maybe you could tell us if it can handle 200 amps. My guess is I'm sure it can but like any motor we run it will only do it for so long before it gets too hot. Let us know how it works out .
MarkComment
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JohnChange is the one ConstantComment
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Mark is more qualified to state a rating as he already has some experience running the motor in one of his hydros.
JohnChange is the one ConstantComment
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Thats a pretty good question. If your talking 200 amps continous then my personal experience says no way. 200 amps at 30 volts is lower then the 8000 watts the motor is rated at but that much current is going to equate to very large amounts of heat. Things are going to get hot other then the motor too. Internal-external wiring/ connectors/ solder joints. Look for the weakest components/ parts in the circuit. Thats probably where failure is going to occur. I dont have any facts to back it up, just my gut intuition, but I think your going to have some serious issues.
John
I talked to Mark this morning and am going to borrow his Lil Screamers to put into a giant Aeromarine Laminated yellow Cannard that Remy built for me. I have included a picture of the boat along with the dual rudder/0.250" drive for it. I have all the Eagle Tree Equipment so will install it to see what happens. My guess is that the RPM is going to be too low to really have any significant speed. My previous experiments with Scorpion Inrunners in Mean Machines was pretty much a failure for the same reason.....not enough RPM even though I used some giant props.
But, after all, we only learn from failures.........and I am becoming really smart these days!Comment
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Absolutely. The big Lehner HiAmp versions can do 200 amps continous. I know Steve Neu has done some custom winds motors for 200 plus amps. But in almost any RC boat, the better method is to use more volts and less amps if maximum speed is your goal. Heat is our adversary. Heat is what you get with the requirement of max power but voltage limits.
I'm still surprised not to see spin offs of the big high voltage motors that are being used in commercial or military applications. Of course most of those motors are custom as are the controllers but there are many big and I mean big (25 kw and more) battery powered vehicles from aerial platforms to ROV's. I guess what it all come down to is the cost. Throw enough money at it and they can build you bridge to the moon right?
JohnChange is the one ConstantComment
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I have no idea about the motor. I was supposed to be sent one two months ago but never did get it. Not sure what's up with that. I run with some pretty hot dog FE guys and wanted to show the motor's capabilities in a 48" mono. Oh well. Here sits the mono I bought for it!Mini Cat Racing USA
www.minicatracingusa.comComment
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Do you not think that when they have the new supply of motors in from China, Scott will be hot on the thread!
Sailr I talked with Scott for about 45Minutes a few different times and he was going to send me some sample motors for me to help him develop a line. Another time he assured me he was going to send me a custom motor for the SAW's. I never got a thing, Sorry Scott you are a little flakey in my opinion. I hope you made a lot of money off your 50 motors...... I for one feel a little burnt. Not much, but you should call some one when you change your mind.Last edited by RandyatBBY; 05-12-2010, 07:51 PM.Comment
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