The War Zone website has an article offering the first
glimpse into weapon expenditures in the Red Sea against the Houthis. As stated by head of Naval Surface Forces,
Vice Adm. Brendan McLane, here are the weapon expenditures:
Total = 220 missiles
Total = 160 shells
CIWS was not mentioned although at least one example of CIWS
use has been documented and acknowledged by the Navy.
Against this expenditure, the Admiral claims “more than 400” targets were engaged.
Elementary arithmetic shows that if the Navy’s 380 total munitions
fired destroyed “more than 400 targets”, that’s a kill ratio (pK) of greater
than 1.0 !!!!! In other words, every
Navy munition killed its target and many killed more than one target. That’s amazing. That’s incredible. That’s unbelievable. No, seriously, that’s not believable. In fact, it’s blatantly wrong.
The admiral continues his unbelievable statements with,
We didn’t engage missiles in WWII so I have no idea what he’s talking about. Aerial targets in WWII required thousands of rounds per hit so, again, I have no idea what he’s referring to.
Further, the good admiral undoubtedly is not including 5”
shells in his statement of analysis as 5” guns have a near-zero chance of
hitting a missile. So, subtracting out
the 5” shells, that means the Navy’s 220 missiles destroyed more than 400
targets for a pK of 1.8 or almost two targets destroyed by each defensive
missile fired. That’s just totally
absurd, of course.
Setting all that aside, the admiral claims that two ‘rounds’
(which I assume to mean missiles) were used per engagement which would conform
to the Navy’s standard ‘shoot, shoot, look’ tactic. That means that the 220 missiles could have
engaged only a maximum of 110 targets not more than 400. That also assumes that every engagement
worked and that would so greatly fly in the face of all historical defensive
missile performance as to be flat out unbelievable. The pK’s throughout history have been
uniformly in the 0.01-0.25 range not 1.0-2.0.
Now, to be fair, the admiral wasn’t offering a detailed
engagement analysis; he was just
providing weapon expenditures and likely threw out a ballpark number of targets
just to provide context. I don’t think he
was lying or even being intentionally misleading.
I can readily imagine that some of the 400 targets were
engaged by aircraft whose weapons (Sidewinders, presumably) weren’t included in
the Navy’s ship weapons expenditure although that would mean that even fewer
targets were actually engaged by ship missiles and that would significantly
lower the pK.
We know that 5” guns are notoriously inaccurate (recall the
Vincennes incident where some one hundred rounds were fired with zero hits) so
the 160 shells fired were probably directed at just a few targets.
Clearly, this scant bit of information the admiral provided
is not useful in analyzing weapon performance, only total expenditure and even
that has gaps in the information since Sidewinders, CIWS, and RAM, among
others, were not mentioned. While the
presumed pathetically poor quality and performance of the attacking missiles
would result in better pK’s than historically found, I’m certain that the pK is
nowhere near 1.0 and, indeed, the admiral’s own claim of two rounds per
engagement disproves the apparent pK.
Unfortunately, until the Navy provides some detailed performance data,
we can only speculate.
The only valid conclusion from the admiral’s statements is
that we are on the wrong side of the cost curve … big time! We’re using $2M-$4M missiles (two at a time!)
to shoot down thousand dollar drones and cheap missiles.
This simply reinforces the common sense conclusion that you
deal with attacks not by defending but by destroying the source of the
attacks. Perhaps the new administration
will take a different view of the Red Sea actions than the previous
administration. We’ll have to wait and
see and, in the meantime, we’ll continue to bleed money, deplete our missile
inventories, and risk our ships while waiting for the inevitable leaker that
gets through.
____________________________
- 120 SM-2 missiles
- 80 SM-6 missiles
- 20 Evolved Sea Sparrow Missiles (ESSM) and SM-3 missiles (combined, for some unknown reason)
- 160 rounds from five-inch guns
Total = 160 shells
“We’ve done the analysis with what we used to shoot in World War II, and we’re at about two rounds per incoming missile,” McLane said.[1]
We didn’t engage missiles in WWII so I have no idea what he’s talking about. Aerial targets in WWII required thousands of rounds per hit so, again, I have no idea what he’s referring to.
https://www.twz.com/news-features/navy-just-disclosed-how-many-of-each-of-its-surface-to-air-missiles-it-fired-during-red-sea-fight