I think Brian Simpson has a blog piece today: "All it Takes is One Hit," which seems to see aircraft carriers are more vulnerable than they are in fact to hypersonic missiles. I correct this.
In the age of flashy military TikToks and breathless headlines, few weapons get more hype than hypersonic missiles. China's DF-17, Russia's Zircon, and their cousins are routinely called "carrier killers" — unstoppable weapons that will supposedly send billion-dollar US Navy supercarriers to the bottom of the ocean in minutes. The narrative is simple, scary, and effective: America's floating airbases are slow, sitting ducks against Mach 10+ death machines.
But as one experienced voice on Quora put it recently, the reality is far more nuanced. Hypersonic missiles are a serious threat that must be respected — but they are nowhere near the game-over weapon that propagandists (and some anxious analysts) want you to believe. Here's why US aircraft carriers remain far more survivable than the hype suggests.
1. Carriers Are Not "Slow-Moving Targets"
The first myth is that a carrier is a lumbering, predictable behemoth. In reality, a Nimitz- or Ford-class carrier is a fast, highly manoeuvrable warship. Public figures put their top speed at "over 30 knots" (about 56 km/h), but the true sustained speed is classified — and significantly higher than most people assume. A carrier strike group can change course and position dramatically in the time it takes a hypersonic missile to fly hundreds or thousands of kilometres.
Even if an adversary has perfect targeting data at launch, the carrier won't be where the missile expects it when the weapon finally arrives. That time-of-flight gap is a fundamental problem for any long-range strike against a moving target at sea.
2. It's Never a One-on-One Duel
Propaganda videos love to show a lone missile streaking toward a lone carrier. Real naval warfare doesn't work that way. A US carrier never operates alone. It is the centrepiece of a Carrier Strike Group (CSG) that typically includes:
4–6 guided-missile destroyers and cruisers
Submarines
Airborne early-warning aircraft
Electronic warfare aircraft (EA-18G Growlers)
Those escorts are packed with SM-6 missiles — among the most advanced interceptors in the world. Recent US Navy and Missile Defense Agency tests (including 2025 trials) have demonstrated the SM-6's ability to detect, track, and engage advanced manoeuvring hypersonic targets. The Aegis combat system on these ships can coordinate a massive barrage of interceptors, chaff, decoys, and electronic jamming. A single hypersonic missile faces not just one ship, but an entire networked, layered defence system designed precisely for this kind of threat.
3. Physics Doesn't Care About Propaganda
Nations love to quote headline-grabbing speeds: "Mach 10!" "Mach 8 at sea level!" But the laws of physics are stubborn. Hypersonic vehicles achieve their peak velocity at very high altitudes where the air is thin. As they descend toward a sea-level target, drag skyrockets and speed drops significantly in the terminal phase.
That slower terminal approach gives defenders precious extra seconds — seconds that can be the difference between a successful intercept and a miss. ICBMs have hit Mach 25 since the 1960s, but they do so in the vacuum of space. Bringing that speed down into the thick lower atmosphere is a completely different engineering challenge.
4. The Plasma Sheath Problem: Deaf, Blind, and Dumb
Here's where things get especially interesting for the attacker. At sustained hypersonic speeds (Mach 5+), the friction of the air creates an envelope of superheated, ionised plasma around the missile — the famous "plasma sheath." This sheath is excellent at protecting the vehicle from heat, but it also blocks electromagnetic signals. Radio communications, GPS updates, and active radar seekers are severely degraded or completely blacked out.
In other words, once a hypersonic missile is screaming toward the target at peak speed, it becomes largely blind and unable to receive mid-course corrections from satellites or ground controllers. For a moving target like a carrier that has already changed position, that's a fatal flaw. Fixed targets (airbases, ports) are one thing. Hitting a fast-moving carrier group that is actively manoeuvring and jamming is another challenge entirely.
5. The Real Threat — And the Real Response
None of this means hypersonic weapons are harmless. Saturation attacks (dozens of missiles arriving simultaneously), improved targeting networks, and future manoeuvring glide vehicles could still overwhelm defences in the right scenario. US officials, including senior Pentagon leaders in 2025–2026, have openly acknowledged the growing risk in the Indo-Pacific. That's why the Navy is pouring resources into SM-6 upgrades, directed-energy weapons, and new layered defences.
But the "carriers are obsolete" crowd consistently ignores the defensive side of the equation. The US Navy has spent decades and billions refining exactly these countermeasures. The hype serves China and Russia's interests — it sows doubt, influences budgets, and tries to erode confidence in American power projection.
Bottom Line
Hypersonic missiles are dangerous. They demand serious attention, investment, and new tactics. But they do not magically render the US carrier fleet obsolete. Carriers remain mobile, heavily defended, and embedded in one of the most sophisticated combat systems ever built.
The next time you see a slick video of a hypersonic missile streaking across the sky with dramatic music and the caption "Carrier Killer," remember: physics, escorts, electronic warfare, and good old-fashioned naval professionalism still matter. The US Navy isn't ignoring the threat — it's preparing to defeat it.
Carriers have been declared dead many times before — by submarines, anti-ship missiles, and now hypersonics. So far, they've outlived every obituary. Don't bet against them yet.