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Old Jan 01, 2013, 12:56 AM
Heli Pad is offline
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Against Helicopter Cruelty
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Happy New Year to all my friends.
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Old Jan 01, 2013, 01:30 AM
leethetreeguy is offline
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Fly em if ya got em.
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Here is hoping that this year brings you all happiness and joy and prosperity. Cheers my friends.
Lee
Old Jan 01, 2013, 08:13 AM
erdnuckel2 is offline
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It flies!!! ... so who cares ?
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Happy New Year to all of you!
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Old Jan 01, 2013, 08:16 AM
BattleDude is offline
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High Plains Drifter...
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Quote:
Originally Posted by wheelzup View Post
Wow!... Diodes and Doo Doo. I REALLY wish I hadn't brought it up.
On the contrary ole' boy, glad you did. Everything gets discussed here, including what you had for supper, and the general appearance of it, the next day!
Old Jan 01, 2013, 08:17 AM
BattleDude is offline
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High Plains Drifter...
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Is it New Years allready? Man, time flies when we are having fun !!!
Or when we get old !
Old Jan 01, 2013, 11:26 AM
Chap1012 is offline
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Epilepsy Awareness
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Quote:
Originally Posted by wheelzup View Post
I'm gonna risk it again... posing a question that is, not messin' with batteries! Please feel free to redirect to a different, more appropriate thread.
The Skywing is starting to get sluggish about halfway through a battery, well before the voltage becomes too low. First thing I notice is a sluggish or non-exsistant response to RH yaw with a corresponding drop in rpm (and altitude). When I land and let sit for a minute or two (cool down?) I get great lift and turn response in both directions. It sure seems like the continuous run time is causing it, suggesting heat. Possibly one of the motors going bad? I've double checked gear clearances and rotational efforts (back-driven by hand) seem smooth and ok.
Advise and thanks again for all your help and photographic contributions...
Mike
Feel both motors directly after landing. If one of the motors are very hot, you found the problem. It's highly unlikely both will be hot.

Mike.
Old Jan 01, 2013, 11:29 AM
Chap1012 is offline
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Durk, I am waiting on a SD card reader to download a fix to my camera that is only two years old. The camera is over charging the battery...AARRGG. I take my pics/vids, then remove the battery for now

Mike.
Old Jan 01, 2013, 11:43 AM
Heli Pad is offline
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Quote:
Originally Posted by Chap1012 View Post
Feel both motors directly after landing. If one of the motors are very hot, you found the problem. It's highly unlikely both will be hot.

Mike.
+1. Of course it is possible for a motor to good bad. But in the case of a coaxial when the two motors have to match speed, having one motor gone bad will be very very obvious, because the coaxial will be way out of shape. Is it possible for both motors to go bad at the same time at the same rate? Possible but very unlikely.

Therefore, I would attribute the sluggishness to the battery. I think the battery is not so healthy, and its internal resistance is building. When it is working on a load, the voltage drops faster than before, and the max current draw is limiting. But if you let it rest and cool off, when it is not under load, it bounces back up a little, until it is under load again, and it starts to fall rapidly after a short initial thrust. It's just my theory.
Old Jan 01, 2013, 12:35 PM
frieslander is offline
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To Soar Like An Eagle!
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Quote:
Originally Posted by Chap1012 View Post
Durk, I am waiting on a SD card reader to download a fix to my camera that is only two years old. The camera is over charging the battery...AARRGG. I take my pics/vids, then remove the battery for now

Mike.
Can you not just take the battery out to charge it? That is how my Canon cameras do it. The batteries last quite s long time between charges and I have spares.

I hope the firmware fix does the trick, no card reader on your PC?
Old Jan 01, 2013, 01:24 PM
Chap1012 is offline
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Originally Posted by frieslander View Post
Can you not just take the battery out to charge it? That is how my Canon cameras do it. The batteries last quite s long time between charges and I have spares.

I hope the firmware fix does the trick, no card reader on your PC?
The battery remains in the camera while charging via USB to PC or wall plug. Without the new "fix" if I leave the battery in the camera, it sucks the juice right out of it. I already sent two batteries back with zero voltage after leaving the battery in the camera. So, you see, it over charges and when left alone will draw the juice out.

No, my PC does not have a card reader. I never heard of that. I thought card readers were all external

Mike.
Old Jan 01, 2013, 02:34 PM
Heli Pad is offline
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They have card readers on the desktop front panels, too. I use mine all the time.
Old Jan 01, 2013, 03:13 PM
frieslander is offline
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I would be lost without a card reader in my PC's. Even my printer has a card reader that I can access from my PC's even over my wireless network.
Old Jan 01, 2013, 04:13 PM
leethetreeguy is offline
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Fly em if ya got em.
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Poor Mike is still living in the 70's. ahahahahahaha
Lee
Old Jan 01, 2013, 08:16 PM
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Mike & Heli,
Spot on Mike. Does anyone else hold stuff up to their lips to feel slight temp differences? No? Then never mind... I don't either. So, when I hold the heli up to my receptors (wink), the front motor definitely feels warmer than the rear. Sure enough, it would be responsible for increasing relative rotation for the "poor" rh turn performance. Moreover, that motor is surrounded by the battery and the canopy.
Experiment... removed canopy and it operated almost flawless through most of the batt. Did this enough to be repeatable, then re-installed canopy. Obvious and within 2 min of continuous flight, lh turns will allow climbs while rh turns sends to the ground.
Sounds like a motor change in my future?
Heli, power loss is dramatic only in rh turn. Will only climb with full left ail.
Thanks again.
Old Jan 01, 2013, 08:29 PM
Heli Pad is offline
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Okay, that does sound like a bad motor. Plan on replacing both of them at once. (Like you would replacing tires).


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