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Fail safe or return spring?

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squid929

RCTalk Member
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Location
Oakville ON, CDA
RC Driving Style
  1. Bashing
Which one is the norm for r/c cars? I know the failsafe is the way to go for flight but what about land creatures? Is the throttle return a spring sufficient or should I spring for the fail safe. I use 2.4 ghz radios as well as AM
 
You should have both.
 
If you lose control at WOT, your servo will stay open. The spring will not return a servo under power. That's why you need the failsafe.
 
Guess I need to pick up a few of these. I can swap them back and forth between trucks correct? I don't want buy 3 or 4 of these. Most want $40 a piece up here.
Any ideas as to what is best for use with Airtronics, Spektrum and ACE-Hobby (AM)?
 
Spektrum has a built in failsafe that is more than sufficient. Add on fail-safes are not needed. A small rubber band works the best for a TRS. No THS will prevent a runaway if the servo motor burns up or the servo gears strip at WOT. I have had it happen to me twice in 10 years. Both times I had my linkage slightly off causing excess stress on the servos.
I suggest picking up a few more Spektrum receivers. They have never let me down.
 
I suggest picking up a few more Spektrum receivers. They have never let me down.

+1 on that. Would be money better spent.

I had a couple spare OFNA micro fail safe's since I switched to spektrum... don't really recall where they are now though. May have sold them. They worked well though, so if you do buy one, I'd vote for one of those.
 
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