C-12

The C-12 Air Force Modification Program is focused on the sustainment and modernization of thirty C-12 aircraft, which are commercial equivalents to the Beechcraft Super King Air. These twin turboprop aircraft are primarily used for support airlift missions, transporting cargo and passengers over medium distances. The program encompasses multiple variants of the C-12, including the C, D, F, and J models, each with distinct remaining service life hours and operational requirements. The goal is to ensure the continued safe, reliable, and effective operation of these aircraft well into the future, with the earliest service life expiration estimated for 2052.

A key objective of this budget line is to implement necessary service bulletins and low-cost modifications required for maintaining Federal Aviation Administration (FAA) certification. These modifications are essential for improving flight safety, reliability, and maintainability of the C-12 fleet. The program also addresses emerging modification requirements to support program management administration, advisory and assistance services, system integration laboratories, trainers, equipment, and other government costs associated with the ongoing sustainment of the aircraft.

One of the major technical goals within the program is the integration and upgrade of the Electronic Flight Instruments System (EFIS). The EFIS enhancements are designed to incorporate mandated Communications, Navigation, Surveillance/Air Traffic Management (CNS/ATM) systems, navigation safety features, and Global Positioning System (GPS) requirements. These upgrades will provide the capability for future enhancements and ensure compliance with evolving airspace regulations. The EFIS will include new cockpit instruments, color radar, and upgraded CNS/ATM systems to meet both current and anticipated operational needs.

Another objective is to address issues related to diminishing manufacturing sources and material shortages, which can impact the availability of critical components for the C-12 aircraft. Funding under this line item may be used to mitigate such risks by supporting program management administration and advisory services, ensuring that the fleet remains operational and effective despite challenges in the supply chain.

In FY 2026, the efforts and funding previously allocated to this program were transferred to a consolidated budget line for modifications across similar aircraft platforms. This consolidation was undertaken to increase funding flexibility and streamline budget management. As a result, no new funding is requested for this line item in FY 2026, and future modification and sustainment activities will be managed under the consolidated budget line.

The justification for these objectives is rooted in the need to maintain the operational readiness and safety of the Air Force's C-12 fleet. By investing in modifications, upgrades, and support services, the program ensures that these aircraft can continue to fulfill their mission requirements efficiently and safely. The transfer of efforts to a consolidated budget line reflects a strategic approach to resource management, enabling more agile and responsive support for the Air Force's in-service aircraft.