what'll happen if...
hi all experts here,
me new in nitro cars so pardon me asking: let's say we're racing our cars on track, what'll happen if... 1. the receiver battery went dead? :eek: 2. the transmitter battery went dead? :eek: cheers. :) |
Most likely you will have what we call a "RUNAWAY" No signal to/or from the car will result in loss of control! :cry:
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Normally when the receiver battery goes dead, it doesn't just die like it is unplugged. The response of the servos slows to almost a stop. Usually the steering servo becomes very slow and won't work when you are using the throttle. The voltage just isn't there to work both servos at the same time.
I have never had a transmitter battery go dead, but I would guess you would have a runaway at that point. If you are using the spektrum system, the car would just go to whatever failsafe setting was programmed. |
The simple thing you can do is use a throttle return spring. Once your reciever is dead, the spring should have enough tension to close the throttle on the carb. This shuts off the engine at the moment of a power failure. Just put a spring on your carb (where the throttle linkage connects to it) and mount it down on another part of the chassis. Do not make it too tight, just enough to close the throttle after power goes out.
I could be wrong ,but I think ROAR rules require a throttle return spring for nitro racing. |
Well what most people are doing now is putting a rubber band on their carb to close it instead of a spring...
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Originally Posted by Luke W
(Post 3412658)
Well what most people are doing now is putting a rubber band on their carb to close it instead of a spring...
Kyosho has instructions on how to do this: http://www.kyoshoamerica.com/techtips/throttle.asp |
thanks guys for yr responses... :blush:
in order to pull-back the throttle, i found that the 'rubber band' tension must be quite tight... :eek: 'forcing' the throttle return; will it damage the servos? :confused: btw, if transmitter dead, same symtoms as receiver dead? same remedy? p.s. my frt wheels will turn to the right when i switched on the receiver, but it'll return to straight after i switched on the transmitter, any concern here? it's ok if i switched on the transmitter 1st then the receiver. :weird: |
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