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10-16-2012, 07:06 PM | #141 (permalink) | |
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OK then, my only Knotronics, I had to take a part and add a heatsink to the fets. It would over heat and shut down on me. I think the info here explains why. Lower internal resistance. Now I am not pounding on Kontonics here! They have a great ESC but have always been WAY EXPENSIVE! In the end the hardware of all these ESC is pretty basic. I do not think Kontronics has some "magic" hardware that explains the cost! Kontronics was charging for the software which up until a year ago or so, they had the edge on. I am not sure that is really true anymore? Although I know some die hards that will claim it is so. FInally as shown here in the "devel in the details"...... Internal resistance is a key to raw power! But does everyone need raw power? Some may like the best governor, or the easiest setup, etc etc etc! So in the end we still have many great choices. Use this info not to totally make your decision, but to help you understand HOW to make the decision! Bob
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10-16-2012, 07:40 PM | #142 (permalink) |
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The only thing that Castle lacks (and in my opinion, it's significant) is active freewheeling. They, CC, are clearly a leader in the marketplace with a sturdy product. The beefy heatsinks, however, are an indicator that their programming still needs innovation.
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10-16-2012, 08:34 PM | #143 (permalink) |
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I hear ya Finless!! Well, I was a castle guy up untill I got my Heli Jive for my Goblin. It is a thing of beauty. As it initializes, it checks the battery and finds the ideal settings for that particular battery. When I run my 65c Thunder powers or Pulse batteries, I get 2250 head speed, with my 40c Zippies, 2100!! The esc comes back luke warm after every flight, no matter how hard you beat on it. The beauty is in its simplicity. There are some down sides though, No downloading of data out of the box. I actually think I got enough bang for my buck. The problem is you can buy two and a half castles for the price of one Jive!
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10-16-2012, 08:38 PM | #144 (permalink) |
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Designed in Kansas for those who care…
Sent from my DROID3 using Tapatalk 2
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10-17-2012, 02:18 AM | #145 (permalink) |
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Personally, I love the gov on my hyperion. From my logs it works hard to keep set rpm, and is super easy to set up. You just put it in gov mode and set a flat throttle curve and adjust to get the rpm you want.
as a novice flyer, I don't care about the raw power our efficiency. All modern esc have decent to good numbers on those. They all use modern components so this has to be the case. They all have different designs and different components so there are differences, but they all use modern stuff. And I think I only paid 60 bucks for my 35A model with a switching bec. So for me it's what I want at a great price. Best components or software? Probably not, but it works great for me and is barely warm at the end of my easy flights. Esc choice is all in just what each pilot needs or is looking for. Steve Sent from Tapatalk using my Inspire 4g through ATT (meaning it's a wonder you can see this!)
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10-17-2012, 08:29 AM | #146 (permalink) | |
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I want the RPM I ask for, not what the ESC fancies giving me... ie I like dialing an actual number into the ESC. |
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10-18-2012, 06:17 AM | #147 (permalink) |
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Putting raw power aside. As the ESC is the bottle neck between lipo
& motor, wouldn't it be great if we have very high conversion efficiency ? That way we get longer flight times without loosing to much to heat |
10-18-2012, 06:38 AM | #148 (permalink) | |
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This mode is good for looking after your packs, a very intelligent ESC. But I would say that lol
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10-18-2012, 07:25 AM | #149 (permalink) | ||
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Pretty much splitting hairs here, lol. Quote:
Steve Sent from Tapatalk using my Inspire 4g through ATT (meaning it's a wonder you can see this!)
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10-18-2012, 11:09 AM | #150 (permalink) |
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This is an excellent thread guys and I would like to add my opinion here about a possible way to find the efficiency difference between two ESCs that are working under the same load.
Lets say 40 amps which is a value that both kosmic 200 and castle 160 can cope with in 50% throttle. By the time we know that we are giving to the system 40amps for 3 minutes and everything else we are using for the test is the same we can compare the RPM difference of the motors. If for example we have 2000rpm difference that corresponds to 3.57 volts for a 560kv motor which turns out to be 142watts difference. 142 watts of heat more in the ESC of the slowest running motor or 142 watts less to the rotor head.
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10-19-2012, 07:23 AM | #151 (permalink) | ||
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Quote:
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At that time, it seemed (and people told me) there was no way to dial in an RPM - nor to get the same RPM each flight. |
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10-19-2012, 08:52 AM | #152 (permalink) |
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Any idea when the next installment is due? I'm keen to see the Jive test.
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10-22-2012, 07:04 PM | #153 (permalink) |
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My practical take away is that there would be no real advantage in switching my ESCs from PFW (CC) to AFW (Kontronik/YGE) assuming that I gear the helis to keep the throttle closer to 100%.
Incidentally would this be accurately reflected by the "Power Out" percentage in the CC logger? (i.e. if the logged percentage is ~90-100% the CC might be more efficient?!)
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10-23-2012, 06:59 AM | #154 (permalink) | |
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I guess that a simple, practical test of whether you'd be better off with AFW is whether your ESC comes down warm to hot. If not, you'd seem not to be wasting much power that AFW could save... |
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10-26-2012, 07:32 AM | #155 (permalink) |
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VERY informative explanation and testing. Looking forward to the next tests.
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10-29-2012, 08:59 PM | #156 (permalink) |
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Great thread. Subscribed.
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10-30-2012, 04:11 AM | #157 (permalink) |
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Has testing come to an end?
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10-31-2012, 01:03 PM | #158 (permalink) |
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Can anybody help me with the setup for my Goblin 700? I am running CC 160HV and running at 100% full throttle all the time, the ESC is barely warm. I run stock pinion of 21t and it was cutting out, the headspeed seems to be not very high tho at 100% percent. The motor however was quite hot, its a 500kv Scorpion motor. I didnt have a temp gun but I could touch it for 1 second without a burn if that helps. Would I benefit from a taller pinion?
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10-31-2012, 01:56 PM | #159 (permalink) | |
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Quote:
https://www.helifreak.com/forumdisplay.php?f=272 |
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10-31-2012, 02:07 PM | #160 (permalink) | |
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