Hardened Shelters Critical To Survival Of USAF’s Tanker Fleet: Study
A new independent report argues that increased access to better-protected airfields is as important, if not more so, than buying advanced tanker aircraft when it comes to meeting future U.S. aerial refueling demands. The authors, in part, call for the U.S. military to invest in new hardened shelters that are large enough for tankers to fit inside. Top U.S. Air Force officials have continued to downplay any need for more physical hardening of bases, even now with the experiences from the war with Iran, which have only underscored the already glaring dangers posed to planes sitting out in the open on flightlines.
Hardened shelters and other efforts to “boost surface infrastructure resilience” form one of three main themes in a report the Hudson Institute think tank in Washington, D.C., published yesterday. It also says that the Air Force should work to “incorporate adaptive mission systems” into existing tanker fleets, including new communications and self-protection capabilities, as well as pursue acquisition of a next-generation tanker with a blended wing body (BWB) design. Hudson’s latest analysis, which is titled Resilient Reach: Redesigning Aerial Refueling for Contested Global Operations, builds on a previous report it published in 2021. Last year, the Institute published an additional report warning more generally about the vulnerabilities created by a lack of hardened infrastructure at U.S. bases worldwide.
A rendering of one concept for a blended wing body tanker aircraft from JetZero. The Hudson Institute’s new report also includes a call for the US Air Force to acquire an aircraft in this general category. JetZero
“Aerial refueling is an unmatched United States military advantage, but it currently depends on vulnerable forward bases and medium-range tankers that could be neutralized,” Hudson’s report states as its number one finding. “Suppression of this critical capability could collapse US air operations and heavily contribute to US defeat in a war against the People’s Republic of China (PRC).”
Though not necessarily to the degree that the Hudson Institute is arguing for, the Air Force has been working in recent years to increase the networking architecture available on the KC-135 and KC-46 tankers it has now, as well as field new defensive systems. The service is also still exploring a wide range of next-generation aerial refueling concepts, including new stealthy and/or uncrewed tankers, under what is now called the Advanced Tanker Systems (ATS) program.
The US Air Force’s current tanker fleets are made up of KC-46s (one of which is seen here at left) and KC-135s (at right). USAF
Base resiliency and aerial refueling capacity
The base resiliency aspects of Hudson’s new aerial refueling report are a particular standout, especially as this is an area where the Air Force has been dragging its feet, if not actively pushing back.
“Aerial refueling surface infrastructure is the ‘network of airfields, maintenance facilities, and bulk fuel storage and distribution facilities and systems necessary to enable tanker operations,’” Hudson’s new report states, citing the Institute’s past work from 2021. “‘Enhancing the capacity and resilience of its surface architecture should be a top priority for the US Air Force – even if it comes at the cost of tanker procurement – because it will yield a greater increase in the number of employable tankers’ and receiver aircraft supported.”
A row of US Air Force KC-135 tankers. USAF
With this in mind, “the department [of the Air Force] should first pursue access to more airfields, including large commercial ones, and nurture its invaluable relationships with North Atlantic Treaty Organization (NATO) and other allies that provide access to tanker airfields,” per the report. “Second, it should improve bulk fuel storage and distribution by constructing lower-capacity hardened fuel stores rather than higher-capacity but vulnerable aboveground storage tanks, fielding airfield and over-the-shore fuel distribution systems, and securing access to more maritime tankers, including by levying higher working capital fund rates to fund bulk fuel resilience initiatives.”
On top of all this, “the Air Force will need to fund passive defenses (such as personnel and equipment bunkers, reconstitution equipment and units, redundant capabilities, the aforementioned fuel infrastructure hardening, more hardened large aircraft shelters, and tanker decoys) and active counter-command, control, communications, computing, cyber, intelligence, surveillance, reconnaissance, and targeting (C5ISRT) and air and missile defenses to defeat threats,” the report adds. “As witnessed at Prince Sultan Air Base, dispersion alone is insufficient to avoid attack in an era of persistent surveillance and precision targeting.”
Five Air Force KC-135 aerial refueling tankers were damaged on the ground in an Iranian attack on Prince Sultan Air Base in Saudi Arabia in March, just weeks after the start of hostilities with Iran. That same attack destroyed one of the service’s prized E-3 Sentry Airborne Warning and Control System (AWACS) radar planes. Lt. Gen. Linda Hurry, head of Air Force Materiel Command, confirmed just last week that repairs are s
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