Surely the US/UK has a habit to counter blue-series subsonic CMs,
Houthi’s have two true ASHBM
Light warhead
Heavier warhead
The theory right now is the UK ship was hit with the latter. The ships that have been hit with the former suffered minor to moderate damage. Nothing existential and they could still sail on their own power.
we need something like Onyx or BrahMos, supersonic/hcm very soon to pose a real challenge to US ships and that would be very effective used in swarms
Those missiles are actually entering obsolete status with 2030’s set to be hypersonic CMs.
Brahmos-2 is in r&d with a 1500KM range and Mach 8 speed. At ~$6M per missile (assuming that’s true) it is quite economical for Hypersonic CM.
The problem with supersonic is the range tends to suffer from the amount of fuel consumption the CM engine consumes. So you need very efficient engines. This area is Iran’s weakest link in CMs and drones - lack of powerful micro scramjet engines.
Indeed nearly all of Iran’s drones are prop or turboprop. Very few microjet or scramjet engines powered drones.
I expect we will see an Iranian supersonic CM in next 2 years, but truly hypersonic CMs are the future of hitting enemy assets. It will be very hard to intercept hypersonic CMs, much more so than HGV BMs.
A glimpse into US war of the future
But i still think that in a massive swarm of subsonic CMs situation, if the projectile hits the VLS compound, it is a 100% kill situation
Issue with that is most CMs attempt to hit the waterline of the ship while some try to hit the mast or airburst above the stern.
It would be tough to for a CM to penetrate all the way to the VLS cells from entering the side. a few compartments to get thru. It’s easier for a BM as it’s a top down attack.
Either way a swarm attack will have much higher lethality and make C-802s more viable as the enemy exhausts their stock of ADs faster than they can reload or resupply.
The issue is in a hypothetical Iran vs US warfare. US navy will stay out of PG and more in Indian Ocean and Gulf of Aden until the Iranian coastline has been cleared of the thousands of CM batteries.
Due to limited range, Iran’s only effective anti naval weapon will be AshBMs or drones at that point. Although theoretically you could convert Iran’s Kh-55 based CM family to target naval targets if you can provide up to the second targeting data via drone or Iranian spy satellite.