C-37A

The C-37A program within the Air Force is dedicated to modifying existing aircraft, specifically nine C-37A and seven C-37B models, which are equivalent to commercial Gulfstream 5 and Gulfstream 550 aircraft. The primary goal is to ensure these aircraft remain service-ready for transporting high-ranking U.S. government officials worldwide. As these aircraft approach their designed service life limits, the program aims to conduct evaluations for continued serviceability and implement necessary modifications to extend their operational lifespan.

A key objective of the C-37A program is the modernization of communication systems, particularly through Crypto Modernization. This involves replacing the outdated Ultra High Frequency (UHF) Military Satellite Communication (SATCOM) System with a more advanced system capable of connecting to the Mobile User Objective System (MUOS) satellite constellation. This upgrade is crucial for maintaining secure, global, beyond line-of-sight communication capabilities for national senior leaders. The National Security Agency and DoD Chief Information Officer have directed these cryptography modernization efforts to ensure compliance with current security standards.

Additionally, the program addresses various emerging modification requirements that support Program Support Costs (PSC), Advisory & Assistance Services (A&AS), and other government costs. These modifications include service bulletins and low-cost updates necessary for maintaining Federal Aviation Administration (FAA) certification, improving flight safety, reliability, and maintainability. Efforts also focus on tackling Diminishing Manufacturing Sources (DMS) issues, ensuring that parts and components remain available for ongoing maintenance and upgrades.

The C-37A program's objectives align with maintaining a fleet that meets modern communication standards while ensuring safety and reliability in transporting key government personnel. By focusing on both immediate upgrades like Crypto Modernization and long-term sustainment through service bulletins and low-cost modifications, the program aims to keep these critical aircraft operational well into the future.