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07 Aug 2019 19:52:01
ooooh mrs jones  :D
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
29 Jul 2019 20:14:10
DB that just means you have shed loads of props in the first place ;-)
29 Jul 2019 18:53:33
Just had a thought, even with all the crashing I've done, I haven't bought any replacement props in over a year ~~
09 Jul 2019 19:45:42
May the sun shine and winds be light for BFU#8. Son't forget lots of vids for those of us unable to attend.  :D
09 Jul 2019 18:10:30
Hope you all have a great day  :beer2:
09 Jul 2019 14:05:28
BFU#8 details locked in for this saturday - see the head of the forum thread for all details.
05 Jul 2019 21:51:05
Good for genital warts as well......or so I'm told.. :hmm
05 Jul 2019 21:48:24
Just fixed a busted SMA connector on my TBS unity pigtail, it suffered badly in a recent crash and split in two, nothing a touch of the soldering iron couldn't fix  :D
05 Jul 2019 19:44:08
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Printing 3d Forum

Looking for a reliable ESC

Started by Brian, Saturday,September 14, 2013, 10:55:14

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Hi all, I';m looking for a reliable easy to use (No flashing required) 40A ESC for my Hex.

Its got to be able to run my 4215 630KV 22Pole motors with 15" props.

Afro';s didn';t work, Unmanned 30A';s were ok for a few flights but then went all Pete tong.

Balders has suggested 40A Opto RCTimer ones, but said they need flashing. I have no spare money as I';m out of work waiting for the job centre';s New Enterprise Allowance scheme to catch up to me (they have already approved my business idea, and I have to wait for a mentor before I hand over my business plan) They have to be dole money friendly!!

Thanks for your time and help,
Brian :wack0



These RCtimer 40 amp optos do not require flashing - they come with SimonK on there already.

One circlip short of a quadcopter.
 1 lobe short of an antenna.


Balders said he did flash them before they were reliable? Unless I misread him (in the chat room)

Brian :wack0


I have heard some of the early batches of RCtimer ESCs had to be reflashed because they screwed it up at the factory and put the wrong firmware on them.

I can only hope this is fixed now. But it';s a possibility wherever you get your ESCs from.

I think it was Ian (smeagol) on the forums who had serious issues with some RCtimer ESCs - they were dead on arrival and only worked after being reflashed.

One circlip short of a quadcopter.
 1 lobe short of an antenna.


Ok, whats the difference between these two ESC';s? Which would be more reliable?



My confidence is blown on ESC';s at the moment, it also doesn';t help being skint lol!!

Thanks for your help mate,
Brian :wack0


Saturday,September 14, 2013, 13:12:24 #5 Last Edit: Saturday,September 14, 2013, 13:27:30 by Balders
product 781 had a built in BEC.  The other ones dont.  I have the opto isolated (non bec) versions and other than teething troubles (had to reflash the lot of them) they have been faultless.

I borrowed a flash tool off a friendly forum member :)
Growing old is mandatory...Growing up is optional

FPV Guru
BNUC-S qualified


OPTO ESCs dont have a built in BEC so they wont supply you with 5 volts.

Since you are using a separate high power UBEC i would suggest going with the OPTO ESCs. You wont be using the BECs built in to the non Opto ESCs.

OPTO ESCs should be more reliable and less noisy than non OPTOs.
One circlip short of a quadcopter.
 1 lobe short of an antenna.



You probably wouldn';t have to flash them - unless something went wrong at the factory. Then reflashing them might solve the issue.
One circlip short of a quadcopter.
 1 lobe short of an antenna.


i use the h/k  blue series and f series...
if you need escs flashed i would gladly do them for you..
dont grow up,just buy bigger toys!!!!



lot answer and all wright .
I have been using hobbywing skywalker in my 450 sized quad for nearly 2years without problem. now sure how many hours but ALOT !

my other 2 frames are using HK f30 and HKf20 flashed with simonk but only got low hours on them at the minute ,but up to now (touch wood ) fine


I';m going to get the 40A OPTO';s from RCTimer due to the price, and I know that if they need it there a bunch of you good guys here that will flash them if they need it!! And I';d missed this before, but they seem to recommend these ESC';s for the motors which I bought.

Thanks guys,
Brian :wack0


another thing is that the opto supports upto 6S and bigger burst amp