Failsafe

If you are using a PCM TX and RX pair then you are automatically using a failsafe and it is most important to make sure that it has been set to operate correctly. It should, as a minimum, be set to reduce the throttle to idle.

Most fail safes default to ‘hold last position’ and this can be very dangerous if your radio goes into failsafe in a high throttle.

You should check fail-safe operation before each flight. Without the engine running, switch off the Tx and ensure that all relevant controls on the model move to their pre-set fail-safe positions. Switch the Tx on again and make sure that normal control operation returns within a few seconds. If the fail-safe does not re-set quickly there may be a fault so - DO NOT FLY.

You must take the positive steps to specify what it should do instead of leaving it set at default. Read your radio manual carefully for details of settings, or see me at the club any time for assistance.

A fail safe is highly recommended for all models and is a requirement for models over 7Kg to a have a fail safe fitted to the throttle.