I was driving my RC today, and I guess it was going around 35MPH. And it went out of range, it reved. all the way up, to arbou 45MPH. Smacked right into a concrete parking lot curb. Ya know those things that have at each end of a parking space? It hit that pretty hard. It stalled. I panic'd, went to see the damage, the wheel just came off, and more of a crack to the front bumper. Put the wheel back on. Fix the bumber with some crack filler. I see some RC videos where they hit things at 50MPH, and seem not to do much damage other than a stall or light body damage... It really is crazy. If I hit my car into a concrete curb, I'm sure I would kill the rims, and damage something underneath...

Hitting a concrete curb I'm surprised you didn't walk away with more damage. My RC10GT takes a ton of abuse but I've tried to avoid concrete curbs and such.

you can hit something going 40 and not break a thing.
then you next lap you hit something do 15 and you break a lower arm.
its all about physics on impact i guess. you know right angle, right spot,etc
you should be glad you didnt do more than thaat. i hiit a curb once with my old stampede and it snapped in half.

you should invest in a failsafe. if you go out of range your car will go immediately to full brake and save you some $.

do a search here and for failsafe and you'll see tons of threads about them.

yea failsafes are lifesavers

I'll go to my local RC hobby store. And see if they have fail safe things.

JUST AFTER I GOT MY CAR I HIT A TREE IT RIPPED OFF THE RIGHT A ARM THE IMPACT KNOCKED THE RECEIVER BATTERY LOOSE THE CAR CAR TOOK OFF DOWN THE ROAD FULL THROTTLE I FINALLY
FOUND IT ABOUT 1/2 MILE AWAY IN SOME BUSHES,SO THE HECK WITH THE FAIL SAFE I JUST PUT A SPRING ON THE THROTTLE ITS ALOT MORE RELIABLE.

huh? explain plz

U ATACH A SPRING TO THROTTLE ARM ATACH OTHER END TO THE BODY TE SPRING WILL PULL THE THROTTLE TO NEUTRAL

the body? huh thats weird how do you attach it to the body?

I'd like to see the pictures of that little Jerry-rig...
I guess it would depend heavily on the specific vehicle in question. I imagine a flat spring like this (or something similar) could do the trick too huh? A little more compact, then you don't have to worry about a spring getting caught up in anything you're powering over.

If anyone's ever done this, I'd love to see the work.

TIA

- co

oops... more like one of these

- co

You dont attacth it too the body you attach one end to the throttle arm and the other to one of the engine bolts. that is if he is talking about throttle return spring

if the batterhy becomes completley disconnected the fail safe wont engage. it still needs power to move the throttle at all

Pictures please pictures

i dont have a digital cam but the spring whould work like it does on a lawn mower it would pull the throttle back if u lost power at full throttle

Some TRS do that and some dont, I feel that using stiff TRS puts unwanted stress on the servo, The purpose of my TRS is too return the throttle to idle if my linkage breaks.

ok, how do you rig that one up then?

buy a throttle return spring from AE and you unscrew one of the socket head screws that holds the engine to the mount and then you put it through the spring holder and screw it back in, then you Atatch one end of the spring to the spring holder and the other end goes on the throttle arm. The AE spring isnt strong enough to pull the servo when the battery is dead so if You want something like this you will have to buy a stiffer spring.

gotta pic?

no but ill make a drawling hold on

here, the red line represents the throttle return spring

The idea behind a Throttle returns spring is the return the throttle to neutral in the event that the receiver / servos loose battery power. The TRS does you absolutely no good in the event of out of range or the tranmitter dies. This is because the servos still have the power to overcome the spring. This is where the failsafe works.
I learned this the hardway about 15 years ago when I was racing 1/8 Gradn prix. I hit a cement wall at around 100 mph not much was left of my car.

Anyway if anyone want to look at a TRS setup on the RC10GT, there is one in my Gallery.

OUCH!

where is it anchored at?

The spring return is a good safety set-up. You can get the right kind of spring from DuraTrax. I got mine through Tower Hobby under the parts section for a Max ST, DuraTrax part # DTXC 9647 (http://www2.towerhobbies.com/cgi-bin...?&I=LXVG87&P=K), around 3 bucks.
If you don't have a place to connect the spring to the motor, use a small zip tie around the base of the engine head & connect the spring to that. That's the set-up I used & it's worked well for me.