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450 Class Electric Helicopters 450 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar. |
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02-16-2014, 08:03 AM | #1 (permalink) |
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Join Date: Jan 2013
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450L Dominator Brownout
I crashed yesterday, and I'm trying to figure out why. Stock Trex 450L Dominator 6s with ikon flybarless and a spektrum satellite. ESC and servos are stock, full battery.
I took off and flipped to IU1 then IU2 (85% flat throttle curve, 0-25-50-75-100 linear pitch curve), proceeded to do a tick toc, and when the heli went inverted, it just lost all power and fell to the ground. It seemed much like I was in normal mode, but I wasn't. I flew one successful flight before that one. This was also my 60th or 70th flight with no previous issues. I'm wondering if I had a brownout!!?? Has anyone browned out the stock esc/bec?
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02-16-2014, 01:57 PM | #2 (permalink) |
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it is possible
just depends on how much your servos pulled at that time
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4 x Rush 750/stretched V-bar KDE 700XF-495 HV servos Greys reactor CC 160-HV Trex 600EFL V2 V-Bar ds610 ds650 CC bec/pro Scorpion 130a HV KDE 600XF-530 450L KDE 1750 cc50 4xDS215MG k-bar X-8 FPV Wing, TBS Discovery FPV, TBS Caipirinha FPV |
02-16-2014, 02:58 PM | #3 (permalink) |
Join Date: Jan 2014
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Its unlikely though. People have been measuring the BEC voltage on the Dominator using the Castle Edge BEC... (its only 5A peak)
There haven't been any overdraws. The stock BEC is 6A peak. I've been absolutely abusing those servos at 6.0 volts, 100% roll and flip rates, 65 expo, 3400 rpm, hard 3D popping... for months now... 16 packs per day. The BEC in the 45A ESC isn't the same old garbage they used to have. When I bought my 450L, I also bought a Polaris BEC... but with Align revamping their lineup.. I decided to give it a chance. That ESC/BEC is awesome non governed. |
09-29-2015, 07:39 AM | #4 (permalink) | |
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Join Date: Sep 2015
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Quote:
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09-29-2015, 09:13 AM | #5 (permalink) |
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Join Date: Mar 2011
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I had a motor bullet pull out my 450L had cold solder joints so I redid them all. Cause one crash with loss of power.
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__________ Goblin 380, 500, 570, Mikado 690SX, 480Xx(Stretched 500) , Protos Mini, Max V2 , Oxy 3, Vbar Control/Neo Vlink (Citizen 758)YouTubeProgress:http://tinyurl.com/oliver1071 |
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