ESC Viper Sub 10, speed controller, 6-12V

Built for RC submarine setups, the Viper Sub 10 is a brushed speed controller that combines 6-12V operation with a 40A motor limit for DC brushed motors under load. The fully waterproof design suits running conditions where electronics work below the surface and around constant spray, wiring and propulsion demands. A one-touch setup routine calibrates the controller to the radio system through the onboard button and LED sequence, setting neutral, full forward and full reverse positions. The unit also adds programmable reverse functions for more precise control of manoeuvres in confined water spaces. A high-power 3A BEC provides regulated 5.0V output for additional onboard functions that need a stable supply, going beyond the standard Viper Marine specification mentioned in the data. Built-in failsafe, motor short circuit protection and thermal overload protection add concrete electronic safeguards during operation. In a scale submarine build, these features support steady throttle control during launch, submerged cruising and low-speed direction changes near obstacles or weed. The compact controller format with clearly marked battery and motor connections also fits the technical character of dedicated RC boat and submarine installations.