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Onboard Ignition Switches

  • Simon Osborne
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17 Oct 2020 20:05 - 17 Oct 2020 20:10 #23482 by Simon Osborne
Onboard Ignition Switches was created by Simon Osborne
Today I learnt a valuable lesson. No drama thankfully but this particular flight could have ended in disaster when the ignition switch developed a fault.
Most of us with petrol engine models fit an on-board ignition switch that is operated from the transmitter.

The lesson I learnt is that there are versions of these ignition switches from as little as £8 and there are versions at the other end of the market circa £45. The old adage ‘you pays your money’ comes to mind.
Guess at which end of the market my replacement ignition switch will be coming from.

Simon O
Last edit: 17 Oct 2020 20:10 by Simon Osborne.

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18 Oct 2020 09:45 - 18 Oct 2020 09:48 #23483 by Jon Tappin
Replied by Jon Tappin on topic Onboard Ignition Switches
Hi Simon

I think you've been a little unlucky, I've used a few RCexl switches and never had a failure, but if you want to go higher end, I would recommend the Powerbox Sparkswitch. Their products are very high quality, but you pay for it. I had one in my 104 Extra. Its a switch and regulator.

www.nexusmodels.co.uk/powerbox-spark-swi...ted-output-6610.html
Last edit: 18 Oct 2020 09:48 by Jon Tappin.

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18 Oct 2020 10:12 - 18 Oct 2020 10:13 #23485 by Phillip Ford
Replied by Phillip Ford on topic Onboard Ignition Switches
I have had no issues with RCexl either although I don't buy them from Ebay, only from model shops. Not that you would buy anything from Ebay Simon! :lol:
Last edit: 18 Oct 2020 10:13 by Phillip Ford.

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  • Simon Osborne
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18 Oct 2020 10:45 #23486 by Simon Osborne
Replied by Simon Osborne on topic Onboard Ignition Switches
Yes, I’ve ordered a power box unit. Interestingly 2 other members at the field yesterday have had RCxcl units fail.

With the luck I’ve had model flying recently I’m not prepared to take the risk. I call it ‘Insurance’ tactics. Of course the Powerbox unit could fail. Laws of averages I guess.:silly::silly::silly:

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18 Oct 2020 13:33 #23487 by Kevin Ross
Replied by Kevin Ross on topic Onboard Ignition Switches
The Excel opto switch in my Stearman the original fitted approx 8 yrs ago - sourced from H/king. Also used 2 more in other models. Couldn't use one on the Decathlon due various limitations so thats a mini servo operated microswitch - even better that onto isolation !

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