I am wondering if anyone has tried to create a remotely controlled motor kill switch? My thought is that if an ecl airplane is going to crash while the motor is running that for safety purposes it would be helpful to have a remotely controlled kill switch that could be used to kill power to a motor in the event of a crash to stop possible damage to the motor or to kill power to it to avoid injury if the plane crashes... just a thought.

Chris,

Luckily its not an IC motor and you can have a pilot controlled kill switch.  You may not be able to react fast enough if a crash is happening but the added safety to be able to stop the motor if something unexpected happens is such a huge bonus it should be mandatory.  It's so easy to add the circuitry with electric power.  My suggestion is Clancy Arnold's U/Tronics Control system.   Look below in Vendors Corner

Paul

Hi Chris,
John is correct here. The KR Governor timer works by monitoring the rpm all the timer, so I set a trigger point and if the rpm goes below that it puts the system into low throttle mode. This usually prevents the motor and esc from burning out. It also helps with a battery that drops in voltage as well. Some esc's have better low voltage detection than others, just like Wynn mentioned for the over-current setting. I put this feature into my system after burning out 3 Jeti Spin esc's. This was rather costly!

My timer system was also aimed at the beginner as well, and of course they will prang a lot when learning. You don't want them to burn out stuff like the motor and esc all the time. Just one thing that I need to point out is that this feature only works when the governor kicks in. When the system starts up it takes just a few seconds to get up to speed and then the governor kicks in. If you fly in long grass I always recommend someone holding the model until the motor is up to speed just in case the prop snags the grass.

Keith R

I was thinking about it for a long time.... Itīs a excelent idea when something happens into the field, as It happened with me one time... a DOG was able to pass the fence when airborne.....

Maybe Wil or Keith could built a time with a remote shutoff??

Rodrigo Mansano
Brazil