Senators press Transcom on tanker readiness as KC-135 ages, KC-46 troubles continue; blended-wing body cited as potential long-term gain
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Summary
Lawmakers questioned Transcom about air refueling capacity for future contested fights, noting the advanced age of KC-135s and ongoing problems with KC-46 deliveries; some senators urged continued investment in next-generation designs including a blended-wing-body tanker concept.
Senators used the hearing to press Transcom on air refueling capacity, calling out an aging KC-135 fleet, operational issues with the KC-46 program and potential benefits of next-generation tanker concepts.
Why it matters: A reliable tanker fleet is essential for long-range air operations and power projection; lawmakers said modernization is critical to sustain bomber, fighter and surveillance operations in contested environments.
Chairman Sullivan and other members highlighted the KC-135’s long service life, noting it “has been a cornerstone of the U.S. Air Force’s air mobility and refueling capabilities since the 1950s.” The witness said continued connectivity and modernization are necessary: “Connectivity is king for that aircraft as it goes forward,” he said.
Senator Mazie Hirono described the blended-wing-body (BWB) tanker concept and the efficiencies it could deliver, including significantly greater range and fuel efficiency in proponents’ estimates. The witness described the technology as “very promising” and said Transcom is advocating for any technology that reduces fuel consumption and expands operational options.
Committee members also raised the KC-46 program’s delays and reported structural problems; the witness said the KC-46 is a “great airplane” when it works and that the manufacturer needs to resolve outstanding issues.
Lawmakers linked tanker readiness to other contested-logistics needs — including basing, sustainment and fuel distribution in theaters such as the Arctic and Indo-Pacific — and urged sustained funding to avoid capability gaps.
The witness said Transcom has been working with combatant commands and the services to ensure operational requirements for future platforms (including those that would support the B-21 bomber) are understood and communicated to the services that make the acquisition decisions.
