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Power Systems Talk about motors, ESC speed controllers, gear drives, propellers, power system simulators and all power system related topics

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Old 11-01-2013, 05:39 AM   #1
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Default HZ Super Cub ESC rating?

Hi Guys,

I need some advice on something:

I'm building up a vintage model The Kyosho Hyperfly and wish to keep it reasonably original, but due to NiCd not really being available I am going to have to go with a LiPo and ESC with cut off. The original ran a 6cell NiCd 1100mah switched to the motor directly which was a Kyosho AP29L a 480 high speed brushed unit (4900KV I'm told!).

I realised that I had the all in one board from the Hobby Zone Super Cub LP and wondered is this could work?

It has a brushed ESC for a 480 sized motor which is about right, but I don't know the Amp rating? That said, it will be run at full throttle all the time.

Works with LiPo, but a 3 cell rather than the 6 cell NiCd. Could it work with 2 cell LiPo?

Could the BEC cope with running 2 standard size servos or would I need smaller units?

Sorry for all the questions, I'm just looking for a suitable way to get this thing up in the air. It would be nice to fly it as original as possible, but if I have to go brushless, then so be it...
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Old 11-01-2013, 07:11 AM   #2
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There is no mfgr's rating for the Super Cub's ESC. People have tested it to failure and that is consistently about 13 amps. They don't hold up to 3 cell lipo.

No idea about the BEC's max safe load.
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Old 11-01-2013, 03:32 PM   #3
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Just make sure if you buy a new esc to get a "brushed" version. They are becoming a rarity these days. I might still have my 18 amp Castle brushed esc if you want it. I'll sell it for the cost of shipping/postage. Will fit inside an envelope. Send a PM if interested.

-Hawk

Wounded Warrior Fun Fly - Aug 16th ,2014 - Grapevine TX - Info link: https://support.woundedwarriorprojec...ising/RCPilots
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Old 11-01-2013, 03:42 PM   #4
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Thanks for the help, I think it might be easier to go brushless, I found a 2848 inrunner 2200kv and a 40a esc in my bits box, that should do it. I just worry that my RPM will be hugely different with this setup.
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Old 11-01-2013, 05:06 PM   #5
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I would definitely get a better esc but mine pulls 20 amps on 3 cells with the stock motor and prop and has survived many dozens of flights.
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Old 11-02-2013, 04:24 AM   #6
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I looked on Hobby King's wibsite today and tried to fit in the existing parts I have. One thing I know is that the stardard setup works, or I'm told it does. So I have loads of receivers kicking around and HK were selling a 30A brushed ESC with 1A BEC for 7 which gives me a much safer margin. So I ordered some bits that will make the heli run like stardard apart from the 2 cell LiPo instead of 6 cell NiCd and an ESC rather than a whisker switch.
I'm looking forward to flying this machine now, but I'm still reasonably novice and am worried that I will crash it!
Thanks for all the help, I'll keep us posted on my progress and I'll find something to put that supercub board into!
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