U.S. Army Begins Fielding BAE Systems Radios across Helicopter Fleet

The U.S. Army has begun fielding BAE Systems’ AN/ARC-231A Multi-mode Aviation Radio Set (MARS) across its rotary-wing aviation fleet, bringing a new software-defined communications capability into operational service.

The AN/ARC-231A MARS system has completed initial installations and is now operationally ready on select helicopters. The system provides secure, multi-band, multi-mission communications with Type 1 crypto modernization, designed to support tactical decision-making where speed and security of information are essential.

BAE Systems developed the system to allow waveform upgrades across the Army’s aviation fleet or adaptation to specific mission requirements. Its software communications architecture and software-defined design enable future enhancements to be introduced as software-only updates, removing the need for complete hardware replacement.

The system includes the RT-1987 radio and associated components such as amplifiers and mounting bases. It is designed as a drop-in replacement for the original ARC-231 radios currently in service with U.S. and allied forces. MARS is configured to ensure interoperability for joint force operations, meet U.S. and NATO communications requirements, and provide internationally compliant air traffic control communications. The system is also available for foreign military sales.