Air Force Global Strike Command is considering long-range, autonomous Collaborative Combat Aircraft as partners for its bombers but is waiting to see how they prove out with the fighter force first, the head of the command said Dec. 5.
Gen. Thomas A. Bussiere also discussed the appropriate size of the B-21 bomber program, the possibility of a mobile land-based strategic missile force, and the outlook for the Sentinel intercontinental ballistic missile during an event hosted by AFA’s Mitchell Institute for Aerospace Studies.
Bussiere said the service is “looking at” how it could use CCAs in partnership with bombers, but “we’re going to let the fighter force kind of mature that concept with [Increment] 1 … and then we’ll be prepared to integrate that into the Long Range Strike Family of Systems, probably at a later date,” if directed.
“I won’t get ahead of the Chief or the Secretary, but it’s a logical question to ask, whether long-range strike would benefit from the CCA concept,” Bussiere added. ” … Right now, we don’t actually have that in the plan.”
Bussiere’s comments come a day after 8th Air Force commander Maj. Gen. Jason R. Armagost said that “a large aircraft, like a bomber, has many apertures and many radios, and in many cases, more crew members to be able to manage things like” CCAs, adding that the service has kept its options open in how it has developed and procured the B-21.
The “obvious limitation,” Bussiere noted, would be the range of such aircraft. The Increment 1 CCAs being developed by Anduril Industries and General Atomics Aeronautical Systems are optimized for an air-to-air function and not necessarily for long-haul missions that would allow them to escort bombers.
Air Force Secretary Frank Kendall raised the possibility of CCAs to complement the bomber fleet in 2021, and for a time, they shared mention on his Operational Imperatives list of critical new capabilities. But a year later, he backed off the concept, saying “the idea of similar-range collaborative combat aircraft is not turning out to be cost-effective.”
Analysts argued there was still a way for the drones to help the long-range strike mission, though.
B-21 Fleet
Bussiere also said it would be a good idea to “reevaluate” either the total number of B-21 bombers or the rate at which they are procured, saying that the changing security environment weighs in favor of more of the “exquisite” capabilities on the new aircraft.
“Who would not want more?” he asked.
“There are several examples in the in the last five or 10 years where we’ve evaluated what the proper fleet size should be,” he said. And while the program of record calls for “at least” 100 B-21s, Bussiere said there is analytical justification for a bomber fleet of 220 aircraft, of which 75 will be B-52Js, suggesting a fleet size of 145 B-21s.
The figure of 100 “probably needs to be reevaluated, based on the world as we see it today,” he said. “It’s a force mix discussion within the Department of the Air Force, and it’s a resource and priority [question] within the Department of Defense [and] the nation.”
The Air Force could accelerate the program to deliver more than the small handful of B-21s planned each year, Bussiere said.
“If the Department of the Air Force, the Department of Defense, or Congress directs an accelerated ramp … for the B-21 program, there’s some capability growth within the current complex,” he said.
Asked if production capacity could be expanded by adding another company to produce the jet, Bussiere said he was not convinced that would be “the most efficient way” of expanding production. More likely, he said, “it would require opening up another production complex” with the prime contractor, Northrop Grumman.
Chief of Staff Gen. David Allvin, in April testimony before the Senate Armed Services Committee, brushed aside the idea of going beyond the planned 100 B-21s, saying he thinks that by the time they are all built, technology will have advanced to offer an even better option.
“I think we’re not going to reach that number until probably the mid-2030s and beyond,” Allvin said, adding that “there are other technological advancements” likely to arise before the service commits to the B-21 as the backbone of its bomber fleet.
But Bussiere said the number and speed of delivery of the B-21 is a “valid discussion” to have “based on the age of the B-1 and B-2” and the advancing strategic capabilities of Russia and China.
If indeed B-21 deliveries will not conclude until the late 2030s, as Allvin said, that suggests a production rate of only seven or eight airframes a year. The actual rate is classified.
Land-Based Leg
When it comes to the land-based leg of the nuclear triad, Bussiere said the Air Force has “looked at” the idea of making the next land-based ICBM mobile—an idea to improve its survivability that went to prototype stage with the Peacekeeper missile in the 1980s, and which has been suggested by a number of think tanks since.
“There’s been debate and discussion over the decades on whether or not we should have a mobile aspect or component of the land leg of the triad. It’s been studied,” he said. “The nation has determined that … we’re not there yet. So that is a policy decision. If the nation decides that we are going to implement some sort” of ICBM mobility, “then we will develop concepts and go through that process. But right now, that’s been looked at.”