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On/Off switch failed resulting in crash - 1/2/2013 8:58 PM   
Warbird40


 

Posts: 271
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Last Login: 5/14/2013
From: Moreno Valley, CA, USA
Status: offline 		Well I lost my favorite Sunday plane (Tiger 2) due to the On/Off switch failing. I did my preflight check, taxied and when I gave it full throttle I lost communication from tx to rx causing the plane to go full speed down the runway into a metal post. I checked my rx battery voltage it was fully charged, so I connected the rx batt pack directly to the rx and got full response on all my servos. Plugged it back thru the switch (no response). So my question is the following: Is there a switch available that fails in the on position and not in the off position? I would hate to loose another plane or worst yet have someone get hurt due to a bad $4 switch.

Thanks
Ed

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RE: On/Off switch failed resulting in crash - 1/2/2013 9:34 PM   
flyinwalenda


 

Posts: 1304
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From: Hunlock Creek, PA, USA
Status: online 		I use the MPI Miracle  switch /regulatoron larger planes.

www.maxxprod.com/mpi/mpi-21.html


Fromco has a few different types of Failsafe switches  and I'm sure there are a few other manufactures

www.fromeco.org/Products/04FRCBADSW-420s/

They are electronic switches behind a normal looking slide switch. They also can be incorporated with a regulator (like the MPI) If the switch fails or the wires disconnect(not the main battery wire) the switch remains in the on position.

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RE: On/Off switch failed resulting in crash - 1/2/2013 9:42 PM   
BarracudaHockey



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From: Jacksonville, FL, USA
Status: offline 		The downside about fail on switches are the fact that they drain power (albiet a very small amount) when plugged in and off so you need to disconnect your reciever battery between flying days.

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RE: On/Off switch failed resulting in crash - 1/2/2013 10:56 PM   
Warbird40


 

Posts: 271
Score: 105
Joined: 9/4/2012
Last Login: 5/14/2013
From: Moreno Valley, CA, USA
Status: offline 		I always charge my batt pack outside the plane due to me having a small car and transporting planes with wings off....so batt is only in the plane at the field.....I also check voltage on it before every flight right before I do my pre flight check of controls..... Thank you for the links, I will look into those.

Best regards,
Ed

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RE: On/Off switch failed resulting in crash - 1/2/2013 11:22 PM   
flyinwalenda


 

Posts: 1304
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Joined: 10/28/2009
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From: Hunlock Creek, PA, USA
Status: online 		I run LiPo and LiFe batteries in the planes with "failsafe" switches and honestly , although there is a drain when idle like Andy stated ,I haven't had a problem or noticed any increase in charging times as I leave the batteries  plugged in all of the time until I see they are ready to be charged again and I fly quite a bit. I'm sure it does drain them some and for a casual flier it would be a good idea to disconnect before storing the plane.
Good Luck. I'm sure you will find something.
 


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RE: On/Off switch failed resulting in crash - 1/3/2013 12:58 AM   
Checklst


 

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From: Alpharetta, GA, USA
Status: offline 		I have always used 2 switches,2 Batts...........I never found the extra weight was a problem.....Tiger 2...Sig 4*40 ect all flew great on duel packs. You could run NoBS battery from Hangtime Hobby.............they have 2 battery leads so only the second switch is needed on a single pack,at lease the switch has a back up.

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RE: On/Off switch failed resulting in crash - 1/3/2013 2:16 AM   
snuts


 

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From: camrose alberta, AB, CANADA
Status: offline 		As posted above. I too have been using redundant power in my airborne equipment. I started using it about 1994 as I got into gas. I could see all the benifits, addapting it to my 40 glow stuff at the time. Was a good place to use up all the small factory switches at the time, and 600mah packs.
See attached. Great information from Hangtime Hobbies.
http://www.hangtimes.com/parallel_packs.html

-Snuts-

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RE: On/Off switch failed resulting in crash - 1/3/2013 2:41 AM   
vicman



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From: Valdese, NC, USA
Status: offline 		This has been a known issue in the pylon community for some time. The vibration our planes see causes cheaper switches to fail prematurely. Most use JR gold switches and mount them on rubber. This has cut down on occurance dramatically.


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RE: On/Off switch failed resulting in crash - 1/3/2013 4:06 AM   
Warbird40


 

Posts: 271
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From: Moreno Valley, CA, USA
Status: offline 		Thank you all for the tips/ advise!

Best regards,
Ed

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RE: On/Off switch failed resulting in crash - 1/3/2013 5:36 AM   
baronbrian



Posts: 792
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From: Grand Forks, ND, USA
Status: offline 		+1 on the JR gold switches
quote:

ORIGINAL: vicman

This has been a known issue in the pylon community for some time. The vibration our planes see causes cheaper switches to fail prematurely. Most use JR gold switches and mount them on rubber. This has cut down on occurance dramatically.



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RE: On/Off switch failed resulting in crash - 1/5/2013 1:35 PM   
JL1


 

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From: Mason, MI, USA
Status: online 		http://www.qualityrcproducts.com/products_switches.html
I have been using these for several years with zero problems.

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