APD-30Bt

APD-30Bt System Overview

The APD-30Bt is an aircraft engine start automatic control unit designed as an electromechanical programmed device for automated control of engine start processes within onboard systems of aircraft and helicopters.

APD-30Bt Control Function

The unit ensures the execution of a specified time sequence for turning on the starting system units, including the starter, ignition system and fuel supply, as well as control of the unit shutdown upon reaching the required parameters or completing the cycle.

APD-30Bt Aircraft Application

The device is widely used on aircraft and helicopters, including platforms such as Tu-154, , Il-76 and Mi-series helicopters, where it supports automated start of main engines and auxiliary power units.

APD-30Bt System Integration

The control unit operates in conjunction with onboard electrical and engine systems, using a programmed timing mechanism to sequentially switch electrical circuits controlling relays, contactors, ignition units, and fuel valves. The product is also known under alternative designations APD-30Bt and АПД-30Бт.

Product Type: Electromechanical programmed engine start control unit
Function: Automatic control of engine start sequence and protection
Application / Where Used: Aircraft and helicopter engine start systems
System / Installation Area: Engine start control system
Compatible Aircraft / Equipment: Tu-154, Il-76, Mi-series helicopters
Operating Voltage: 27 V DC (24–30 V)
Current Consumption: Up to 2–5 A during operation
Switching Current: Up to 5–10 A
Cycle Duration: Approximately 30 s
Timing Accuracy: ±0.5–1 s per stage
Operating Modes: Engine start (programmed cycle)
Control Functions: Starter activation; ignition control; fuel valve control; automatic shutdown
Operating Mode Type: Short-time operation with cooling interval between starts
Cooling Interval: Approximately 3 min between cycles
Operating Temperature Range: −60 to +60 °C
Weight: Approximately 1.5–2.2 kg
Construction Type: Electromechanical programmed device with cam or step distributor mechanism
Technical Documentation: Product passport and operational documentation

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.