PMK-21TV ser.3 / ПМК-21ТВ сер.3 Program Mechanism Box (Rotor Anti-Icing Timer)

PMK-21TV ser.3 / ПМК-21ТВ сер.3 Program Mechanism Box (Rotor Anti-Icing Timer)

PMK-21TV ser.3 (ПМК-21ТВ сер.3) is a program mechanism box used in the Mi-8/Mi-17/Mi-171 rotor anti-icing system. It generates the timed sequence commands for switching the heating element sections of the main rotor and tail rotor blades in a cyclic order. Offered strictly as a standalone aviation unit for sale with traceability and documentation available subject to contract.