APD-55
Start Control Unit
Description
APD-55 System Overview
The APD-55 is an aircraft engine start automatic control unit designed for automated control of engine start processes within onboard systems of helicopters and other aircraft. The unit functions as an electronic control device integrated into the engine starting system architecture.
Full descriptionCollapse description
APD-55 Control Function
The device manages the sequence of engine start operations, including activation of the starter, ignition system, and fuel supply, as well as automatic shutdown of systems upon reaching required engine parameters or expiration of the programmed cycle.
APD-55 Aircraft Application
The unit is applied on various aircraft types, including helicopters of the Mi-8 family, where it is used as a standard control component for engine start systems during ground and operational procedures.
APD-55 System Integration
The control unit operates in conjunction with onboard engine systems and cockpit controls, ensuring coordinated activation of start system components and transition of the engine to idle режим. The product is also known under alternative designations APD-55 and АПД-55.
Technical details
- Product Type
- Engine start automatic control unit
- Function
- Automatic control of engine start sequence
- Application / Where Used
- Aircraft engine start systems
- System / Installation Area
- Engine start control system
- Compatible Aircraft / Equipment
- Mi-8 family helicopters and other aircraft
All specificationsCollapse specifications
- Control Functions
- Starter activation; ignition control; fuel supply control; automatic shutdown
- Start Termination Criteria
- Engine speed reaching approximately 55% or completion of programmed time cycle
- Ignition Control Timing
- Automatic shutdown after defined start interval
- Control Sequence
- Starter engagement; ignition activation; fuel supply introduction; acceleration to idle; automatic disconnection of systems
- Construction Type
- Electronic control unit
- Indication
- System operation indication via onboard panel
- Technical Documentation
- Product passport and operational documentation
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms








