APD-78A / АПД-78А Auto-Start Control Unit (TV3-117 Main Engines)

APD-78A / АПД-78А Auto-Start Control Unit (TV3-117 Main Engines)

APD-78A (АПД-78А) is an auto-start control unit designed for automatic starting and monitoring of TV3-117 main engines installed on Mi-8, Mi-17 and Mi-171 helicopters. The unit controls the engine start sequence, ensuring correct parameter progression and safe engagement during normal and cold start conditions. Offered as a standalone certified aviation engine start system unit for sale with traceability and documentation available subject to contract.