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NAWCAD Advances Radar System Readiness Through WOLF Innovation

NAWCAD Advances Radar System Readiness Through WOLF Innovation
Sustaining Legacy Radar Systems Amid Obsolescence
The Naval Air Warfare Center Aircraft Division Webster Outlying Field (NAWCAD WOLF) is playing a pivotal role in enhancing the U.S. Navy’s radar system readiness by innovating the sustainment of the AN/SPN-43C Shipboard Air Traffic Control (ATC) radar. This radar, a critical component of Navy carrier operations since the 1960s, faces diminishing support from its original manufacturer. In response, NAWCAD WOLF’s Air Traffic Control and Landing Systems (ATC&LS) division has developed advanced in-house capabilities to repair and overhaul essential components, directly addressing issues of obsolescence and reliability.
Capt. Walter Massenburg, PMA-213 program manager, emphasized the importance of maintaining operational readiness for such critical systems. He noted that the efforts at NAWCAD WOLF exemplify the dedication and ingenuity necessary to sustain mission-critical capabilities despite the challenges posed by aging technology.
A key focus of these efforts is the comprehensive overhaul of the AN/SPN-43C’s pedestal and antenna assembly, a subsystem crucial for accurate radar operation. Previously a frequent source of downtime, the pedestal now undergoes a thorough process involving full disassembly, inspection, repair or replacement of worn parts, and rigorous testing. This proactive maintenance approach has significantly extended the radar’s service life, reduced catastrophic pedestal failures by 70 percent, and enhanced overall reliability while lowering maintenance costs.
Tom Ackerson, the government project lead for the AN/SPN-43C, highlighted the continuous refinement of repair processes aimed at increasing efficiency and minimizing outsourcing. By providing organic in-service engineering support, the team has successfully kept both repair times and costs low, ensuring timely and cost-effective sustainment.
Enhancing Self-Reliance and Addressing Emerging Challenges
NAWCAD WOLF’s acquisition of data rights for key radar receiver components has empowered the team to independently manufacture, repair, and modify parts. This capability reduces reliance on external vendors and secures a steady supply of spare components. Currently, the majority of AN/SPN-43C repair and overhaul activities are conducted in-house, allowing greater control over quality and cost. Blaine Summers, NAWCAD WOLF executive director, noted that the ATC&LS division functions as an organic repair depot for 92 items supporting the AN/SPN-43C radar, generating substantial cost savings for PMA-213 and the Navy.
Despite these advances, NAWCAD’s radar sustainment efforts operate within a rapidly evolving environment. Unique operational challenges, such as those posed by Arctic conditions highlighted in DARPA’s Frosty programme, underscore the need for adaptable radar readiness solutions. Concurrently, the global radar market is witnessing significant developments. Competitors like Fincantieri have introduced advanced systems such as the Omega360 radar, recently unveiled at DIMDEX 2026. Additionally, Singapore’s search for a successor to its FPS-117 radar at the Singapore Airshow 2026 reflects growing international demand for next-generation radar technologies. Industry leaders including Honeywell Aerospace are expanding their defense market presence in the Asia-Pacific region, signaling a broader shift toward advanced radar capabilities.
By maintaining the operational readiness of the AN/SPN-43C and adapting to emerging technological and environmental challenges, NAWCAD WOLF ensures the Navy’s radar systems remain robust and reliable until the planned transition to the next-generation AN/SPN-50 system in the coming years.

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