What is the difference between the ADC and the APC?
These two devices perform 2 entirely different functions. The APC-4 is an automatic level control. Once properly installed in your model submarine, it will control the stern dive planes to keep the model level. It can also be configured to operate independently of the radio, meaning it does not need to be connected to your receiver to function. The ADC-1 is an automatic depth control. It uses a water pressure sensor to control the dive planes. You set the ADC-1 to a specific depth that you want your model to operate at. The ADC-1 then controls the dive planes (fore or aft) to control the models depth. The ADC is most useful in models over 60 long.
