Countermeasure System

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Countermeasure System

Countermeasure System

The AN/ALE-47(V) is the US military’s primary chaff and flare dispensing system and is used on nearly 40 different platforms in 30 countries around the world. Extant has been the USAF prime contractor of the system since 2001 and also has significant experience installing the system in platforms without a self-protection capability.

The AN/ALE-47 is an Electronic Warfare countermeasure system which consists of multiple sub-systems, including:

  • The Programmer, which is the central processing, controlling and communications unit of the AN/ALE-47 Countermeasure Dispenser System.
  • The Safety Switch, which prevents inadvertent dispensing of expendables in all modes. Aircraft 28VDC for squib power is routed through the safety switch.
  • The Dispenser Assembly, which consists of a dispenser housing, a magazine, and a magazine retainer plate. The magazine provides carriage for 30 expendables.
  • The Sequencer, which determines the pin location for each requested expendable, provides squib power, conducts Built In Test (BIT), determines & routes magazine identification and monitors stored inventory.
  • The Control Display Unit (CDU), which serves as the primary operator interface with the AN/ALE-47 Countermeasure Dispenser System and provides the distribution of logic power to the AN/ALE-47 programmer and the sequencers.
  • The Software loader of EW mission data files for the AN/ALE-47 Countermeasure Dispenser System supporting Organizational, Intermediate and Depot level maintenance.
    • Product ID(s):ALE-47, AN/USQ-131B Memory Loader, ALM-295 CDT
    • Key Platforms:Lockheed F-16, Boeing AH-64, Sikorsky S-70, H-60, CH-148
    • Primary P/N(s):AF11122221, 22830-179730-0005, 22830-179720-0001, 22830-179750-0001, 22830-179250-0003, 222830-179740-0002, 22830-179250-0003, 22830-403200
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