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550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 11-15-2010, 08:45 PM   #1
mickshalldale@yahoo.com
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Default recomended BEC and pack for 550mm blades and 16 thooth pinion/stock esc

i have the stock esc running hyperion 5000 35c, i recently got 550mm blades with the 16 tooth pinion. i strecked the boom the 600 and but 95mm tail blades.

i worry about my esc overheating so i wanted to get a bec.

i dont really know what to get or how to use one because i have never had one before.

do i even need one ??

oppinions please
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Old 11-15-2010, 08:51 PM   #2
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Originally Posted by mickshalldale@yahoo.com View Post
i have the stock esc running hyperion 5000 35c, i recently got 550mm blades with the 16 tooth pinion. i strecked the boom the 600 and but 95mm tail blades.

i worry about my esc overheating so i wanted to get a bec.

i dont really know what to get or how to use one because i have never had one before.

do i even need one ??

oppinions please
You would be wise to get one. I have one on my Trex 550 with my Mini Vbar. I am running the CC PRO BEC. Its about $38 bucks and its worth it. My stock ESC doesn't get hot at all.
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Old 11-15-2010, 08:58 PM   #3
Wolfpackin
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The way I understand it the BEC only effects voltage and current going to the servo's and gyro. So, getting an external BEC will not help an overheating ESC due to increased current draw from a motor with bigger blades.

For that I think you just need a better ESC, one that can handle higher amp draw.

Please correct me if I'm wrong...not strong on electronics here.
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Old 11-15-2010, 09:45 PM   #4
Blades345
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Quote:
Originally Posted by Wolfpackin View Post
The way I understand it the BEC only effects voltage and current going to the servo's and gyro. So, getting an external BEC will not help an overheating ESC due to increased current draw from a motor with bigger blades.

For that I think you just need a better ESC, one that can handle higher amp draw.

Please correct me if I'm wrong...not strong on electronics here.
I believe you are correct, but I was merely stating that the stock ESC with the 550mm blades is fine and it won't overheat. I fly 3D and put some decent stress on the ESC and it stays warm, but never gets hot. I would recommend running a separate BEC though, just in case the internal BEC in the ESC failed.
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Old 11-17-2010, 05:04 PM   #5
LARRY2716
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A linear. BEC converts excess voltage to heat. A standalone BEC will make ESC run cooler.I use Western Robotic Mini 10 amp contact 16 peak. Nice and light, though expensive.
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Old 11-17-2010, 05:55 PM   #6
Ah Clem
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I would use a stand alone BEC also-I have been running the WR Hercules (four in service) and the Mini Hercules (1 in service) and am very impressed, so far.
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550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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