The US Air Force has issued a fresh request for information from defense contractors as it pursues development of the Next-Generation Air Refueling System (NGAS).
The Pentagon launched the NGAS program in 2023 with an initial request for information, followed by another in 2024 focused on propulsion systems.
The air force hopes to field the new tanker by 2040. However, the service’s requirements have been revised multiple times.
Proposals for the program must be submitted by October 24 to be considered.
Current Refueling Fleet and Technical Issues
The service currently relies on the Boeing-built KC-135 Stratotanker and KC-46 Pegasus.
The KC-135, first introduced in the 1950s, remains in service but is expected to be gradually retired. The KC-46, developed from Boeing’s 767 commercial airliner, is intended to replace part of the KC-135 fleet.
As part of its fiscal year 2026 budget request, the Department of Defense indicated it may procure up to 75 additional KC-46s instead of holding an open competition for another interim tanker design.
However, the KC-46 has experienced multiple delays and technical issues since entering service, including problems with its refueling boom, fuel system, and remote vision equipment.
Deliveries were halted in March after cracks were found in two aircraft slated for delivery, resuming in May after inspections of the fleet.
