What brand Fail Safe are you using?

[4u2nv]

I tried a Venom one and a AE one and both of them made my savage glitch really bad. (It didnt before or after I had it hooked up) so now I dont run anything. Havnt had any problems yet (Knock on wood)

 

[Diver6127]

I used the OFNA micro failsafes for a while then started using the Futaba FS2 units. I don't use them anymore since I sstarted using the Spektrum DSM modules. I went through 3 OFNA failsafes due to just normal wear and tear. The Futaba units never let me down when I was still using them.

 

[phx123]

I'm using 2 Venoms ..2 Ofna .. and a Duratrax ..all work great and I've never had any problems with them...

 

[R/C Newbie]

I thought the trucks like REVO 3.3 don't they have a built in safe that kills the engine when you lose signal?

 

[Candyman]

OFNA micro failsafes in all 3 of mine. Easy to set up. Reliable. And they don't take up much room. I can usually wedge them right into the battery box with my rx battery.

 

[speedticket75]

i use the venom.......thinking about geting the one with the temp guage built in..........

 

[kx250ryder]

I thought the trucks like REVO 3.3 don't they have a built in safe that kills the engine when you lose signal?

That would be nice, but I don't believe such a system exists.

As for failsafes, I used an OFNA micro failsafe, but it started acting up, so now I don't use anything.

I have been meaning to try rubber bands. I know its butt ugly, but someone said that 4 or 5 small rubber bands between the air filter neck and the linkage ball on the slide will pull the throttle closed if your battery gets low.

 

[FastEddy]

Just picked up a few Futabas at my LHS. 20 clams.

 

[R/C Newbie]

if there is no built in fail safe what stops the truck from taking off when the battery gets low or the truck drops signal at full throttle.

Sorry if this is a dumb ? but as my name states I am new to this

Thanks

 

[FastEddy]

The lack of power or signal will send the unit into safe mode. It is connected inline with the throttle / brake servo and is set to put the brakes on and close the throttle.

If there is one dumb question to ask you choose the right one. It is a cheap way to keep from totaling your rig and to keep you and others safe from an out of control 10 lb rocket.

 

[jetmechG550]

The optidrive on a Revo is not a failsafe in the true meaning of failsafe. It gives you a low battery indication but will not lock up the brakes if it loses the signal from the tx or if someone else gets on your frequency.

I used Venoms and was very pleased with them. They are somewhat small, easy to set-up and not too expensive. Using Spektrum now and it's built in, can be a little tricky to set up though.

 

[kx250ryder]

The lack of power or signal . . .

The lack of signal, and/or weakened power will (hopefully) send it into failsafe mode. If there is no "lack" of signal, and interference doesn't count as lack of signal, your failsafe won't turn on. Also, they only work if your battery is detected as getting low voltage. If the voltage drains too suddenly, or the pack falls out, or breaks a connection, the failsafe will not have the available power to hit the brakes.

Basically, there are only two conditions where your failsafe will do anything to help:

1.) You go out of range, radio batteries die, or turn your radio off, AND there is no other signal matching yours to interfere.

2.) Your receiver battery dies slowly enough for the failsafe to notice in time, and hit the brakes.