JetZero Pitches Blended Wing Body Tanker as ’Game-Changer’

JetZero Pitches Blended Wing Body Tanker as ’Game-Changer’

May 10, 2025 | By David Roza

When the last Air Force KC-10 tanker flew its final sortie in September 2024, Airmen mourned the loss of an aircraft that carried a “staggering” amount of gas and nearly as much cargo as a C-17. 

But retired Air Force pilots say a new kind of aircraft under development in California could fill the void left by delivering more gas even farther afield than the current fleet. 

Developed by aerospace startup JetZero, the Z4 is a blended-wing body aircraft where the fuselage generates lift, which the startup says will use 50 percent less gas than conventional tube-and-wing aircraft. For tankers, that means fueling larger groups of aircraft at longer range to hold more targets at risk. Higher lift also means the Z4 can use shorter runways, while its unusual cabin allows for taller pallets of cargo. 

“The capability that the Z4 brings, for the tanker mission specifically, is a quantum leap,” said Brian Tighe, a retired B-52 pilot who is now executive vice president of the aviation consulting company Allied Defense Services International, a division of Consolidated Air Support Systems.  

CASS helped JetZero refine its proposal to the Air Force, which in 2023 announced a $235 million contract to fly a full-scale commercial demonstrator in 2027. Nearly two years and many subscale demonstrator flights later, JetZero officials say they will deliver on schedule, with a critical design review and production site selection just around the corner.  

A KC-Z4 tanker refuels a Next Generation Air Dominance fighter in a concept image courtesy of JetZero.

The full-scale fuel tanks are built, the cockpit tooling is complete, and a wing test article is being evaluated, said JetZero’s head of engineering, Florentina Viscotchi. 

“I’m confident about us getting to that path to first flight,” Viscotchi said at a May 2 media day event at the company’s Long Beach, Calif., headquarters. 

JetZero’s pitch to airlines touts unmatched fuel efficiency, a streamlined boarding experience, and dedicated baggage room for each of the 200 to 250 passengers. For the Air Force, JetZero is proposing a KC-Z4 that can send more combat power farther downrange than current options.  

Nate Metzler, head of strategic programs and partnerships at JetZero, said a potential KC-Z4 could carry enough gas after 4,000 nautical miles (about the distance from Joint Base Pearl-Harbor Hickam, Hawaii, to 500 miles off Taiwan) to offload about 10,000 pounds each to six F-35s, while the KC-46 can refuel just one. 

“You could sit in a refueling track for 45 minutes as the F-35s fill up and go on to do their work,” Metzler said. “And then the Z4 could go back to base 4,000 miles and land without having to refuel.” 

But an aircraft like this has never been built at scale before, which could mean headwinds on the way to certification and production. 

Running on Empty 

When it comes to tankers, the Air Force is running out of gas. The KC-135 makes up the bulk of the tanker fleet, but the sexagenarian aircraft will soon be too difficult to keep flying. 

“Over the next decade, the aging KC-135 aircraft fleet will be an ever-increasing readiness concern,” Gen. Randall Reed, the head of U.S. Transportation Command, wrote in a statement for Congress on March 5. The air refueling fleet, he added, is “the most stressed deployment, sustainment, and combat capability” as well as “the lifeblood of the joint force’s ability to deploy forces.” 

JetZero illustration

The new KC-46 brings fresh iron, but it is plagued by technical problems and the Air Force currently does not plan on buying enough of them to replace every KC-135, even as the joint force is preparing to fight a war across the Pacific. 

Air Mobility Command is nearly done with an analysis of alternatives for the Next-Generation Air refueling System (NGAS), which would replace the KC-135. Air Force officials previously said the performance of the blended wing body would inform the AOA for NGAS and possible airlift concepts. Former Air Force pilots affiliated with the JetZero project said the efficiency of a KC-Z4 could be revolutionary on the battlefield. 

“This is the game-changer,” said retired Maj. Gen. Erich Novak, a former KC-135 and KC-10 pilot who is now chief financial officer at CASS. “Energy efficiency, payload, range, those are the brass rings for tanker aircraft.” 

JetZero expects a maximum gross operating weight of 362,000 pounds, with a total fuel load of 200,000 pounds, comparable to that of the KC-135 and KC-46, though the efficiency of the blended wing could stretch that tank farther.  

The startup found that a KC-135-style boom works better on the KC-Z4 than the larger KC-10 scale. JetZero plans to build a recessed area in the belly where the boom’s V-tail can tuck in to reduce drag when not in use. Removable wing pods would let the KC-Z4 refuel Navy, Marine Corps, and other probe-and-drogue aircraft. 

The KC-Z4 could carry up to 21 full-size pallets, whereas the KC-46 can carry up to 18, Metzler said. JetZero plans on designing the tanker version with a cargo door the same size as the KC-10’s cargo door on the forward left side of the fuselage.  

The aircraft will be able carry about 120 troops, could be converted into an aeromedical evacuation platform, or carry sensors and communications nodes to help the joint force build a picture of the battlefield. The startup also is working on an airlift version with a rear cargo ramp and an overall different shape to accommodate tall cargo, which the Air Force could consider as it looks to replace the C-17. 

User Feedback 

Dr. Ravi Chaudhary, former assistant secretary of the Air Force for Energy, Installations and Environment, is now strategic advisor for commercial growth at JetZero. Chaudhary focuses on the commercial side in compliance with government contracting rules, but he spoke to his own personal experience after flying the C-17 for about 15 years in the Air Force and then trying the Z4 in a simulator. 

“You’re going to have those muscle memories as a C-17 pilot whenever you take the controls,” he said. “My first time in the seat, I flew a full C-17 approach profile in this and they asked me how it flew. I said ‘it flies like a C-17.’ 

“I flew a 500-foot tactical approach and put it on the numbers on the first try,” he added. “I’m not a test pilot, but as a line pilot, I could easily take it into the pattern and fly with precision.” 

JetZero built the skeleton of a mockup Z-4 airliner at a May 2 media day at the company’s headquarters in Long Beach, Calif. (Air & Space Forces Magazine photo by David Roza)

Chaudhary and JetZero say they’re making a special effort to make the Z4 user-friendly, from the flight deck to the maintenance hangar. For example, Boeing airliners feature synchronized flight control yokes but no active feedback, while Airbus features active sidesticks that are not synchronized. JetZero takes the best of both worlds by featuring synchronized active sidesticks. 

“I spent a year as an Airbus captain, loved that airplane, but I didn’t know what the guy next to me was doing,” said retired Maj. Gen. Dan Heires, a former KC-135 pilot and CEO of CASS. “That’s a problem … and that was an early input” in the design of the Z4 flight deck. 

As the Air Force gears up for multi-crew sorties across the Pacific, mobility Airmen are figuring out how to stay sharp aboard jets that are often loud, bright, and have extreme temperatures, making it hard to rest or sleep. That wouldn’t be a problem on the KC-Z4, which could feature dedicated crew rest areas like those seen on most long-haul airliners.  

Like the KC-46, the KC-Z4 would use a remote vision system where Airmen operate the refueling boom using cameras mounted to the aircraft’s belly. Depending on Air Force requirements, the boom operating station could be located on the flight deck, a novel feature which officials say would enhance crew coordination, and there would be a curtain to block out any glare that would make operating the RVS more difficult. 

JetZero met with groups of Air Force boom operators to learn from the mistakes that have haunted the KC-46 RVS. The startup aims to provide higher fidelity without the distortion and depth perception problems that gave KC-46 boom operators eye strain and headaches. JetZero also used boomer input to model the layout for the station. 

“It’s understanding even the ergonomics and physiology,” Metzler said. Boomers “are going to be there for hours. We want to have more natural movements so as not to fatigue the small muscles in the wrists and arm. It’s little things like that that you wouldn’t think of, but the guys who have been in these airplanes for hundreds of hours said ‘hey, you better think about this.’” 

JetZero built the skeleton of a mockup Z-4 airliner at a May 2 media day at the company’s headquarters in Long Beach, Calif. (Air & Space Forces Magazine photo by David Roza)

Putting It Together 

Developing a new airplane takes billions of dollars from the government, industry, or both. United, Delta, and Alaska airlines are among the major companies that have invested in or partnered with JetZero, but that doesn’t lock them into buying orders, said Richard Aboulafia, a managing director of the AeroDynamic Advisory consulting company. 

“However, there’s also a spirit of ‘hey, if you build it, we will come,’” he added. 

For now, JetZero officials say they are on course to a full-scale demonstrator and are confident about FAA certification. They emphasized the strength of their staff, many of whom previously occupied top positions at Boeing, Airbus, Gulfstream, and other major players. 

Still, major hurdles remain, such as finding a company to actually build the aircraft. Scaled Composites, a subsidiary of Northrop Grumman, is building the full-scale demonstrator, but it’s not yet clear who would help JetZero meet its goal of 20 planes a month five years into production. 

CEO and co-founder Tom O’Leary said he expects the production site to be a “massive, 1,000-acre type of operation.” Made largely out of carbon fiber, most of the Z4 structure will have to be built in one place, he explained. 

JetZero illustration

The startup is seeking private equity and possibly government loans to get the aircraft to market, commercial aviation news outlets reported. But selling a tanker version to the government may be more difficult, as President Donald Trump’s administration is prioritizing other efforts like homeland missile defense, shipbuilding, and the Air Force’s new F-47 fighter. 

“The Air Force’s $235 million up front was a great idea, but it happened in a very different environment,” Aboulafia said. 

It’s also more challenging to design a crossover product for both civilian and military use today, experts say, than it was in the 1950s, when Boeing developed the KC-135 alongside its airliner equivalent, the 707.  

Engines are one example: for the full-scale demonstrator, JetZero selected the Pratt & Whitney PW2000, which powers the C-17 but is antiquated compared to modern airliner engines. There are also different standards for design and production certification, emergency evacuation procedures, and operating costs which could make development more complicated and expensive. 

Still, there is a large appetite for the advantages of a blended-wing body, Aboulafia said, especially one developed by a new company that could boost competition in the market. 

“People want this, they’re desperate for competition and innovation,” he said. “It’s intriguing, but the devil’s in the details.” 

ACC Unveils New Way to Measure Readiness

ACC Unveils New Way to Measure Readiness

May 9, 2025 | By Greg Hadley

Air Combat Command is changing how it measures and tracks fleet readiness, aiming to simplify the way it tracks and communicates the material condition of its airplanes.  

“Readiness Informed Metrics” or RIM, as the command’s new system, and if focuses on three key numbers at its core: 

  • Total aircraft in a fleet 
  • The number of aircraft needed to fulfill operational requirements 
  • The number of aircraft available to meet those requirements. 

CC director of logistics, engineering, and force protection Brig. Gen. Jennifer Hammerstedt told Air & Space Forces Magazine in an interview that the new approach “really helps at the strategic level” to grasp the command’s ability to field forces. “And then down at the tactical level, a wing commander can look at their entire fleet, tail by tail, and go … ‘OK, we’ve got X number of aircraft down for maintenance. What are we doing? What is our plan? It kind of just jumps out a little bit differently. So what we’re doing is not high order calculus or anything. … I guess you could almost say [it’s] an inversion of the traditional rates.” 

The Air Force traditionally tracks and reports on a host of data that add up to various readiness measures, most of which only experts can understand. Some using mission-capable rates— the percentage of the fleet capable of performing at least one of its assigned missions over time—are divulged publicly. Others, such as break and fix rates—the percentage of aircraft requiring maintenance before they can be mission capable and how fast they can be fixed in a set amount of time—are more closely guarded. 

RIM will also be closely guarded. Instead of percentage rates, it will offer three whole numbers, allowing commanders to clearly see the size of their fleets and compare that to the numbers of aircraft required of them and the number they can generate.

“Talking about things with a whole number really helps at the strategic level,” Hammerstedt said. Defining operational requirements is “the most important part,” Hammerstedt said. From there, commands can use the Air Force’s flying hours program and the Global Force Management process to understand what’s expected of them for deployments. “What do you need for flying?” she said. “What do you need for fleet health? What do you need for ground training? What do you need for spares?”  

“Degraders” like jets in depot, in need of parts, or in need of maintenance come off that total.  

By using full numbers, the hope is to make the impact more tangible. “That was kind of our goal: simplify so that we can more clearly see what the risk that we’re taking it is and what’s the impact,” said Hammerstedt. 

ACC is also implementing “tiered” reviews to study and review unit performance, Hammerstedt said. Wing commanders review their metrics daily; Numbered Air Force commanders review them twice per month, and ACC commander Gen. Kenneth S. Wilsbach is briefed monthly. 

The oversight focuses attention on problems and getting them fixed.

Take a hypothetical fleet of 100 aircraft, Hammerstedt said. The operational requirement might be 60 aircraft. If over the course of a month, only 52 are available, the given unit is short eight. In another circumstance, there might be 65 available, an overage of five.  

Wing commanders must brief Wilsbach and explain their numbers, citing whatever issues are getting in the way of meeting operational requirements. Thisshould “simplify and increase communication on our fleet health,” Hammerstedt said. It should also make it easier for Wilsbach and ACC headquarters to more quickly identify issues as they arise, she said, so they can quickly address “funding, maintenance, manpower, the age of our fleets, [and] divestment decisions.” 

ACC rolled out the new system to four bases in 2024: 

  • F-22s at Langley Air Force Base, Va.  
  • F-35s at Tyndall Air Force Base, Fla. 
  • F-15s at Seymour Johnson Air Force Base, N.C. 
  • A-10s at Davis-Monthan Air Force Base, Ariz. 

Since the end of April, all ACC units have been using RIM, and Hammerstedt said the system could be expanded to other Major Commands in the future.  

Transparency to Congress and the public will have to come by some other means, however. “I don’t think you’ll see them published for operational reasons,” Hammerstedt said. 

The Air Force has to balance operational security concerns about the state of its airplanes and squadrons with the need to publicly report useful data to ensure accountability to Congress and the public. Readiness metrics published by Air & Space Forces Magazine in the annual USAF Almanac, typically include mission capable rates, but as rates have declined the Air Force has become more reticent.

The unweighted average of 2024 mission capable rates was the lowest the service has reported in at least a decade.  

USAF, Boeing May Modify Air Force One Requirements to Get Delivery by 2027

USAF, Boeing May Modify Air Force One Requirements to Get Delivery by 2027

May 9, 2025 | By Unshin Lee Harpley

The Air Force is in talks with Boeing to modify requirements for its new VC-25B presidential aircraft, in a push to get them into service by 2027.

Boeing has given the Air Force a revised timeline that could bring the VC-25B aircraft earlier “if adjustments are made to requirements,” a service official told Air & Space Forces Magazine on May 9.

“The Air Force is coordinating with the White House and Boeing to further define the requirements and acceleration options while ensuring we provide a safe, secure, and reliable aircraft for the President,” the official added.

Darlene Costello, principal deputy assistant secretary of the Air Force for acquisition, technology, and Logistics, told lawmakers during a May 8 hearing that the service and Boeing are aiming to have the new aircraft—called Air Force One when the President is aboard—ready by 2027.

That would be two years ahead of the current reported estimated delivery of 2029. President Donald Trump has voiced frustration over the persistent delays to the program and even suggested he may seek interim alternatives for a new place before his term ends in January 2029.

“They’re proposing to bring it into ’27 if we can come to agreement on the requirement changes that get us to that point,” Costello said. “That may be possible, but we believe some of those requirements may still need to be [in place].”

In written testimony, Costello detailed that the Air Force is zeroing in delays tied to “interiors supplier transition, manpower limitations, and wiring design completion,” while “actively pursuing options” to expedite the production. However, the proposed 2027 timeline is not guaranteed, as there are still a few “remaining issues” that the two parties are working through. According to Costello, a more accurate schedule will be available in the near future.

This would not be the first time the Air Force and Boeing have made tweaks to the program; without providing details, Costello noted that “we’ve done a couple things on that program actively working to improve the production and the design completion.”

The service and the manufacturer also previously agreed to ease security clearance requirements for workers to boost production.

“It will not be a permanent relief, but that has enabled Boeing to be more efficient and productive in assembling the aircraft and getting their mechanics to do the work,” Costello told lawmakers.

Boeing previously required “Yankee White” clearances for its VC-25B program engineers, a step above even the Top Secret/Sensitive Compartmented Information (TS/SCI) clearance. It is reserved for those with direct access to or supplies involving the President or senior officials, requiring even greater scrutiny. The aerospace giant has previously reported issues with the clearances of some 250 employees lapsing.

When asked about the current security requirements and the duration of any relief, a Boeing official told Air & Space Forces Magazine that the company “continues to operate under the security requirements for VC-25B outlined by the U.S. Air Force.”

Trump’s desire for a new Air Force One dates back years. In 2018, during his first term, he secured a $3.9 billion deal for two planes, and he unveiled a new paint scheme in 2019. But the program has been plagued by delays and setbacks, repeatedly pushing its original 2024 timeline back.

Boeing and the Air Force have attributed the delays and cost overruns to higher-than-expected manufacturing costs, protracted negotiations with suppliers, other supply chain issues, engineering changes, and shortages of skilled workers with security clearances.

The two new jets are set to replace the 35-year-old VC-25A, which is based on Boeing’s earlier 747-200B models. The new planes are modified 747-8s, the latest variant of Boeing’s 747 series. A pair of 747-8s have been undergoing configuration, including a self-defense system, an electrical power boost, dual in-flight auxiliary power units, a mission communication system, an executive interior, military-grade avionics, and self-operating enplaning, deplaning, and baggage loading.

Most of the work is underway at Boeing’s San Antonio facility in Texas. Once the design and engineering are finished, both jets will go through testing, certification, pre-service support, equipment delivery, painting, and final preparation before Trump can board.

Kadena Sends ‘Message You Can’t Ignore’ with Huge Elephant Walk

Kadena Sends ‘Message You Can’t Ignore’ with Huge Elephant Walk

May 9, 2025 | By Chris Gordon

The Air Force displayed all the firepower it has amassed on Okinawa in an unusually diverse show of force this week.

In a May 6 “Elephant Walk,” Kadena Air Base showcased 24 F-35A Lightning II stealth fighters, drawn from multiple fighter squadrons rotating through the region; eight F-15E Strike Eagles; and two U.S. Army Patriot anti-missile batteries near the runway.

The Patriot system, owned by the U.S. or foreign partners, is deployed to hotspots around the world with significant missile threats, including Ukraine and the Middle East. Their inclusion appeared intended to send the message that the U.S. was not only prepared to operate from the base but to defend it against Chinese missile attacks.

On Okinawa, Kadena is located in the so-called First Island Chain off the coast of mainland China, which includes Japan; Taiwan, the self-governing island China claims as its own; and the Philippines, a U.S. ally that has territorial disputes with Beijing.

In a release, Kadena’s 18th Wing said the “Elephant Walk” of aircraft and missile defense systems was a showcase of “combat readiness and regional deterrence” as part of the exercise Beverly Herd.

Other platforms also represented in the display: 

  • An Air Force RC-135 Rivet Joint signals intelligence gathering aircraft;
  • A Navy P-8 Poseidon maritime patrol, reconnaissance, and anti-submarine warfare aircraft;
  • Two Navy EA-18 Growler electronic warfare attack planes;
  • Two MQ-9 Reaper drones;
  • Two MC-130J Commando II special operations cargo planes;
  • Three E-3 Sentry AWACS command and control aircraft;
  • Six KC-135 Stratotanker refuelers; 
  • Six HH-60 Jolly Green II helicopters

The 18th Wing’s release called the display a “testament to the lethality Kadena AB can leverage to deter adversarial aggression in the Indo-Pacific region.” Chief Master Sgt. Brandon Wolfgang, the 18th Wing command chief master sergeant, said it “sends a message you can’t ignore.”

Obvious but unstated was who that message was for—China and North Korea.

Eventually, Kadena plans to receive F-15EX Eagle II advanced fourth-generation aircraft that will be permanently stationed at the base.

The aircraft from Kadena didn’t stay still. To practice the Air Force concept of Agile Combat Employment, under which aircraft will disperse to elude attack, Airmen and F-35s assigned to Eielson’s 355th Fighter Squadron and 355th Fighter Generation Squadron are staging out of Marine Corps Air Station Futenma, which is also on Okinawa, from May 6-9.

At Kadena, Airmen from the 33rd Rescue Squadron and the 18th Civil Engineer Squadron conducted simulated airfield damage assessments May 8, and the CE squadron worked with U.S. Navy specialists to clear simulated unexploded ordnance from the runway.

Marine Corps Air Station Futenma hosts its own F-35Bs, the short takeoff and vertical landing (STOVL) variant flown by the service. The USMC also operates the carrier-based F-35C.

New Study: Air Force Needs to Work Now on How to Sustain CCAs in the Field

New Study: Air Force Needs to Work Now on How to Sustain CCAs in the Field

May 8, 2025 | By John A. Tirpak

As Air Force leaders consider concepts of operations for Collaborative Combat Aircraft, sustainment in the field—and easing that support by using standard parts and limiting variants—should be a key consideration, according to a new study from AFA’s Mitchell Institute of Aerospace Studies.

Based on a series of wargames, the study also concluded that using common weapons across different autonomous aircraft types will ease the logistics burden in wartime.

CCA sustainment is particularly important to maintaining a high tempo of operations and getting the maximum benefit for the Air Force, said retired Col. Mark Gunzinger, who authored the paper.

That’s because as long as CCAs are flying, either alone or with manned fighters, an enemy will have to “honor” them as a threat and expend effort, weapons, and sorties against them, said Maj. Gen. Jospeh Kunkel, head of Air Force Futures.

That only works if CCAs keep flying, and keeping those drones up in the air is a serious logistics challenge.

In the Mitchell-run wargames, “we’ve got 16 different [CCA] variants out there” Gunzinger said, and it’s important they not have 16 unique logistics trains to support them. “That is a critical consideration,” he said. The variants must be able to “share refueling equipment, other ground equipment, weapons, loading equipment, or whatever, to reduce the strain on our logistics force.”

Kunkel said the Air Force has spoken with its first two CCA airframe contractors—Anduril Industries and General Atomics Aeronautical Systems—about this and urged the companies to look “at motors that are the same, controls that are the same, actuators, tires … those types of things that we need” to sustain CCAs in the field.

“They don’t necessarily have to be the same aircraft, but certainly many of the components need to be the same,” he said.

Kunkel acknowledged, however, that a fundamental requirement is CCAs be able to operate for hundreds of hours without requiring significant physical interventions from maintainers.

The wargames didn’t identify a “sweet spot” limiting the number of increments or types of CCA drones that the Air Force should field to reduce complexity of support, but Kunkel said the numbers of types could be offset by using common elements or parts.

How to Take Off

The study found that CCAs that don’t require a runway for takeoff or recovery can help with the Air Force’s shell-game approach of Agile Combat Employment, in which aircraft are distributed over a wide variety of operating locations and move frequently, so as to not present a too-inviting target for an enemy with precision long-range munitions.

Kunkel said other considerations may still demand conventional takeoff CCAs, but he also suggested short or vertical takeoff is “is something that we need to look at” in future CCA increments.

“As you look at how we generate combat power, and the number of sites we can use … there’s something to a shorter takeoff length,” he said. “We’ve got to figure out what that takes because, generally, when you do a vertical takeoff aircraft, you decrease the payload, you decrease the range. And so there’s a balance that we need to strike here.”

On top of that, Kunkel reiterated recent comments he has made that the Air Force is looking at launching some types of CCAs not from the ground, but out of the back of other airplanes.

“We don’t necessarily want to be tied to air bases for CCAs,” he said.

Missions

One factor in the sustainment debate is the mission of CCA drones—the Mitchell study argued the service should favor“nonkinetic effects” like electronic warfare and other functions that can “degrade, disrupt or destroy” the electronic systems in adversary integrated air defense systems.

The wargames also saw a strong role for CCAs providing logistic support themselves, chiefly for delivering ammunition and supplies to far-flung locations.

The study noted that wargame participants commanding CCAs felt that the aircraft’s smaller footprint and lower cost allowed them to operate from bases closer to the enemy and “generate sorties closer to the fight,” Gunzinger noted.

Overall, the study concluded that the wargames showed some of the potential of CCA while still demonstrating they cannot substitute for fifth-generation fighters or the new F-47 Next-Generation Air Dominance fighter. Gunzinger also said CCAs shouldn’t be used to merely replicate the way the Air Force has fought in the past, but that the service should capitalize on their attributes to create new ways of fighting.

CCAs “must be additive” to the force, and not a replacement, Gunzinger said. As such, they need to be provided for with logistical considerations over and above those for the crewed fighter force.

SPACECOM Wants to Be Dynamic in Orbit. The Question Is How

SPACECOM Wants to Be Dynamic in Orbit. The Question Is How

May 8, 2025 | By Greg Hadley

U.S. Space Command is passionate about being able to maneuver satellites without having to worry about conserving fuel. But figuring out how to achieve that vision remains an open question, SPACECOM’s deputy commander said. 

There’s no question that “dynamic space operations” can make space assets more effective, said Army Lt. Gen. Thomas L. James during a Schriever Spacepower interview with AFA’s Mitchell Institute for Aerospace Studies.

“We’ve done enough of the exercises, we’ve done enough of the training … and see what dynamic maneuver would do for us if we had it,” James said. “We see the advantages. I mean, it’s clear that’s there.” 

James’ boss, SPACECOM commander Gen. Stephen N. Whiting, stated strongly hia aupport for “on-orbit logistics and infrastructure” a year ago at the 2024 Space Symposium. Such capabilities would enable refueling by spacecraft equipped to do refueling and repair.

“Refueling has some disadvantages … because it’s a big fat target, depending on how you establish your refueling systems,” James said. Yet “our analysis that we’ve done on the SPACECOM side, and we’ve done a lot of this, kind of shows there’s a real case for the refueling.” 

Yet the Space Force remains unconvinced. USSF is responsible for developing and acquiring space capabilities, while SPACECOM is the operational command responsible for combat in space.  

Lt. Gen. Shawn Bratton, deputy chief of space operations for strategy, plans, programs and requirements, questioned the concept only days earlier: “I don’t know that I see the clear military advantage of refueling,” according to SpaceNews. And Chief of Space Operations Gen. B. Chance Saltzman told Congress last year that the Space Force was still weighing the benefits and cost of refueling. 

At this year’s Space Symposium, industry and defense officials described plans for on-orbit demonstrations in 2026 and 2028. But foreshadowing Bratton’s comments, Lt. Gen. Philip A. Garrant told reporters he was waiting for the refueling “business case” to be proven.

One alternative to extending satellite life with additional fuel could be rapid satellite deployment. James acknowledged that May 8, saying: “If Gen. Bratton were here right now, he’d say ‘Or, I just give you more satellites rapidly, and that’s cheaper and easier for us to do than refueling.’” 

Astroscale is among the firms seeking to offer refueling services; the company’s APS-R refueling satellite is shown in this artist’s rendering. Courtesy of Astroscale

Operationally speaking, SPACECOM sees a clear need move satellites around when needed, which is why SPACECOM and USSF’s SpaceWERX innovation shop plans to award 10 contracts worth $1.9 million each for small companies to demonstrate technologies in a “Sustained Space Maneuver Challenge.” 

Alternatives to refueling are welcome, James noted. 

“It is the idea of artificial intelligence, machine learning, data analytics on the systems,” James added, so that satellite maneuvers can be made more efficiently and burn less fuel to achieve the desired effect. Exploring different concepts and tech is within SPACECOM’s mission set, but buying and deploying new capabilities is part of the Space Force’s mandate.  

“SPACECOM, we’re not in the acquisition or capability development business,” James said. “But we are certainly in the [business of generating] requirements, of understanding what our vision and view of orbital warfare is going to look like in the future, and what we have to have in place. … We are all ears for the best way to achieve whatever the effect is that we need to.”

Pentagon Opening the Throttle on New Rules for Software 

Pentagon Opening the Throttle on New Rules for Software 

May 8, 2025 | By Shaun Waterman

The Department of Defense is pushing ahead with a plan to automate and streamline the system it uses to ensure that software running on military networks is secure, and will start implementation next month, acting Chief Information Officer Katie Arrington said May 7. 

Arrington signed a memo two weeks ago “directing the development of a Software Fast-Track , or SWFT, Initiative” to speed up the process by which the Department of Defense certifies software to run on its networks. Then last week, her office issued three Requests for Information, seeking industry input. 

“We have got to get software faster into the Department of Defense,” she told an audience of defense contractors at AFCEA International’s TechNet Cyber conference, underlining the pace at which her office was moving. “We put the SWFT memo out, and within, I think, four business days, the RFIs hit the ground.”

The program “will be implemented starting June 1, 2025 so that we in the government can get to software faster,” she added, joking “I will break glass and crawl through it for you, but you cannot whine, all right?”

Arrington pledged to seek industry input into what she promised would be a responsive and flexible process. 

“Over the summer, you people are going to tell us what works and what doesn’t work,” she told industry executives as she strode between tables, interrupting her remarks more than once to call out friends or colleagues by name. 

The two-page RFIs issued last week ask for advice and proposals from companies large and small in three overlapping areas: 

  • Ways in which “automation and artificial intelligence [could] assist DOD-led risk assessment for expedited cybersecurity authorizations,” using a third-party supplied Software Bill of Materials—effectively an ingredients list for the software—and third party certification of secure development practices. 
  • Tools and processes “for consistent, secure, and accelerated risk assessments” of software and software development practices, including supply chain risk management requirements. 
  • Ways that an “external assessment [could] demonstrate technical expertise, cybersecurity, and SCRM experience” and what documents, processes and artifacts it would need. 

Responses, which can each be a maximum of 30 pages, are due May 20.

Automating the process of granting an Authorization to Operate, or ATO, is designed to take a cumbersome, manual, paper documentation process that can drag out for months and compress it down to days or even hours, said Arrington. 

“Lengthy, outdated cybersecurity authorization processes frustrate agile, continuous delivery,” reads the memo she signed April 23. “Additionally, widespread use of open-source software, with contributions from developers worldwide, presents a significant and ongoing challenge. The fact that the Department currently lacks visibility into the origins and security of software code hampers software security assurance.” 

In response, she pledged SWFT will lay out clear and specific rules and procedures for “cybersecurity and [supply chain] requirements” and “rigorous software security verification processes.”  

Once SWFT is complete, “I’m not done yet,” she continued, “We’re going to blow up the [Risk Management Framework], who’s with me on that one?” 

The RMF is a veritable bible for Pentagon information security personnel and has guided decisions about cybersecurity in the department for more than a decade but many criticize it for being slow and cumbersome.  

New B-52 Radar Program Has Nunn-McCurdy Cost Breach, May Be Reduced in Scope

New B-52 Radar Program Has Nunn-McCurdy Cost Breach, May Be Reduced in Scope

May 8, 2025 | By John A. Tirpak

Rising costs on the B-52 Radar Modernization Program—one of the key upgrades that will take transform the B-52H into the B-52J configuration—have triggered a law requiring the Air Force to notify Congress, and the service is now considering reducing the scope of the program.

The Nunn-McCurdy Act requires the services to tell Congress when a program’s cost or schedule estimate has increased substantially from its approved baseline. If there is a “critical” breach of cost or schedule—defined as a 25 percent increase—the Defense Department must certify the program as necessary for national security or cancel it.

The Air Force characterized the B-52 radar unit cost increase as “significant,” meaning a deviation of at least 15 percent. Service and industry sources said the increase is about 17 percent, meaning the program does not need certification to continue.

“The Air Force Program Executive Officer for Bombers submitted a program deviation report to the Air Force Service Acquisition Executive” regarding the radar modernization program on April 11, an Air Force spokesperson said. “The Air Force is assessing the cost and schedule growth on the program and initial review of the PDR indicates it will be a significant cost breach.”

Raytheon is developing and installing the new radar under contract to Boeing, the B-52J integrator.

“The next step in the process is for the Secretary of the Air Force to provide the formal notification to Congress prior to May 24,” the Air Force spokesperson said.

“To be clear, we are at the beginning of the process,” another spokesperson said. The B-52 RMP program manager notified service acquisition leadership that “there could be an increase in the cost estimate (not actual costs, just an increase in the estimate). The program office is currently assessing the estimates.”

As long as the estimate validates that the cost increase is “significant” but not “critical,” all the Air Force must do is notify Congress and submit a “Selected Acquisition Report.”

The RMP is replacing the B-52’s long-obsolete and problem-prone analog AN/APQ-166 radar with a new one—the Raytheon AN/APQ-188—that is a hybrid of the active electronically-scanned array (AESA) radars used by the Boeing F-15 and F/A-18, configured mostly for the air-to-ground mission. 

It is part of the overall B-52J update, which will install the new radar, new engines and engine pylons, digital engine controls, communications and other upgrades to the venerable bomber, giving it an extended service life into the 2050s. The planned Initial Operational Capability for the new radar is 2027.

In addition to providing ground-mapping functions and spotting and tracking aerial threats at range, AESAs in recent years have also been used for electronic warfare and communications.   

Darlene Costello, principal deputy assistant secretary of the Air Force for acquisition, technology and logistics, told a House Armed Services subcommittee on May 8 that the breach had occurred. Asked by Rep. Trent Kelly (R-Miss.) if she is confident the RMP won’t hit the “critical” threshhold, Costello said she is “pretty confident.”

That, she said, is “why we have decided to continue with the program. We believe we can find an affordable way forward to deliver the needed capability. We conducted an affordability review when we first got the information about the pricing coming higher than we expected.”

Costello said the Air Force has “refined the requirements down to a viable product of what [Air Force Global Strike Command] really needs to do, as opposed to possibly other items. That doesn’t mean we can’t bring in capability later, but for now, we’re focusing on getting this capability to the warfighter because it’s needed.”

She said the service doesn’t expect the increase will become “critical” or “close to” that condition, “but we are beyond the ‘significant’ threshold and we’re working through the process” to officially notify Congress.”

The 2024 report from the Pentagon’s Director of Operational Test & Evaluation, released in January, indicated that the RMP is largely meeting its technical requirements, although some questions remain about the shaping of the B-52’s radome and how that will affect performance. A low-rate initial production decision covering 28 of the Air Force’s 76 B-52s is slated for late fiscal 2026, with the remainder to follow after completion of initial operational test and evaluation in fiscal 2028. The RMP completed its critical design review in early 2022.   

In March, the Air Force put out a request for information asking industry about other “modified” radars that could be supplied off the shelf to equip the B-52, but cautioned that it was “not a solicitation” and was published for “informational purposes only.”

A Government Accountability Office report from 2024 noted that the RMP’s cost had increased from $2.3 billion to $2.6 billion.