RIVERSIDE – (INT) – March Air Reserve Base (MARB) is getting some upgrades for a new tenant.

Construction has started on a new $133 million hangar and training facility to accommodate the incoming KC-46 Pegasus refueling tankers. Once complete, the project is expected to modernize maintenance and training infrastructure to support the 452nd Air Mobility Wing and long-term mission readiness, according to the U.S. Army Corps of Engineers.

The project includes the construction of a new two-bay aircraft maintenance and fueling hangar designed to simultaneously accommodate one KC-46A aircraft in each bay.

Existing facilities within the project footprint will be demolished to make way for the new structure, according to the U.S. Army Corps of Engineers.

“This is a significant moment for March Air Reserve Base, which has been a cornerstone of American airpower for more than a century,” said Lt. Col. Stephen Brooks, deputy commander of the U.S. Army Corps of Engineers Los Angeles District. “This project will ensure it continues that legacy of excellence.”

The KC-46 Pegasus is the military version of the Boeing 767. It is the U.S. Air Force’s newest aerial refueling tanker to replace older models like the KC-135, which has been a mainstay at MARB for decades. It will also provide strategic transport, cargo, and aeromedical evacuation capabilities with advanced refueling systems and defensive features for modern, contested environments.

Story Date: January 28, 2026