The Air Force wants to give its tankers and cargo planes teeth. A new programme worth more than $500 million through 2031 will fit KC-46 Pegasus tankers and C-17 Globemaster transports with onboard sensors and weapons capable of detecting, tracking, and destroying incoming missiles and drones. It is a radical departure from decades of doctrine that treated support aircraft as defenceless. In an era where even regional adversaries field cruise missiles and one-way attack drones, the Air Force has concluded that flying a $300 million tanker into a combat zone without self-defence is no longer acceptable.

Why Tankers Need Guns

In every major air campaign since Desert Storm, tankers have been the most important aircraft in the sky. Without aerial refuelling, fighters cannot reach their targets, bombers cannot loiter, and surveillance platforms cannot maintain coverage. A single KC-46 can extend the combat radius of an entire squadron.

That makes tankers high-value targets. China’s PLA Rocket Force has developed anti-ship ballistic missiles specifically to push American carriers — and their supporting tankers — beyond effective range. In a Pacific conflict, KC-46s orbiting at 30,000 feet in the Philippine Sea would be visible to Chinese over-the-horizon radar and vulnerable to long-range air-to-air missiles launched from J-20 stealth fighters. The Air Force’s solution is not to hide the tankers — they are too large and non-stealthy for that. Instead, it plans to make them shoot back.

What the System Looks Like

Details remain classified, but Air & Space Forces Magazine reports that the system will include both sensors and weapons integrated into the aircraft. The sensors would detect incoming threats — likely using infrared search and track (IRST) and radar warning receivers — while the weapons would intercept them at close range. The most likely interceptor is a directed-energy system or a small kinetic kill vehicle — something compact enough to be carried internally without reducing cargo or fuel capacity. The Air Force has been testing laser systems on AC-130 gunships and could adapt that technology for defensive use on larger airframes.

The HH-60W Gets Lasers Too

The tanker programme is not the only platform gaining active defences. The Air Force also revealed plans to equip the HH-60W Jolly Green II rescue helicopter with a laser defence system — and to develop a VIP transport variant for senior military leaders. Arming the support fleet is a recognition that the next war will not have safe rear areas. Every aircraft that flies — fighters, bombers, tankers, cargo, helicopters — will operate under threat. The question is no longer whether support aircraft need self-defence. It is whether the systems will arrive in time.

Sources: Air & Space Forces Magazine, Defense News