Starglider wrote:
Well that suggests two strategies;
a) fire the missiles in volley, where only some of the trailing missiles have radar, and they datalink the target position to the leading missiles.
The really big Russian P-700 SSMs more or less already do that. They get fired in groups of four, with one missile flying up at about 7,000 meters as a leader while the others fly at 100 meters. The leader uses its radar in bursts to find the general target area, passing data to the other three missiles, when they get close all four go active and make individual attacks. If the leader is shot down, another missile climbs to take over its role. It won’t work to have the missile with the radar trailing, because the radar sets on missiles just can’t see very far. Even if cost was no issue, antenna size is.
It wouldn’t make a whole lot of sense to only have radar on specific missiles though. That’d mean you are producing two different missiles, and if the radar missile fails then the others are screwed. Ideally every missile would have radar and IIR (IIR need not occupy the nose, it could go in a side blister), each with a stealthy cap and with use selected during mission planning.
Really though, it would just be better to put the radar, and the stealth on a reusable platform so that cost is no longer such a sever limitation on design. Then use it to cue IIR guided missiles into acquisition range. Such a platform could also launch missiles itself which no longer need to have massive range as the platform acts as defacto first stage, collect SIGINT and do other functions, maybe even transport one or two humans to tell it what the fuck to do. Of course we’ll also need some kind of flat decked platform to fly it off….
b) use a stealthy subsonic cruise stage to get to close to the target, then go active, locate the target and fire off a supersonic/hypersonic second stage for the final dash to the target.
The 3M-54E version of Klub does that minus the stealth as I’d expect you know. Adding stealth is a bit pointless. If you are over the horizon then you don’t need stealth on the missile, and once you cross the horizon the supersonic second stage should be designed for the maximum possible speed as IR stealth will not be possible (way too much friction flying down low) and the USN is not alone in using infrared missiles for terminal defence. Stealth is going to just slow it down.
If the enemy meanwhile has some kind of AEW system to see over the normal radar horizion, then relatively modest RCS tweaks, plus the small size of the missile will greatly reduce detection range already. However odds are if the enemy has AEW at sea, then he also has fighters and bombers. Those will sink any surface ship or aircraft launch platform before it can fire, so winning becomes a matter of winning control of the air. Once you have control of the air you can spam cheap weapons at enemy warships until they run out of ammo if all else fails, and it becomes easy to execute complicated attack plans (planes attack from all directions at once with both high and low flying weapons ect…)
Submarines can launch missiles, but for the most part not in tactical significant numbers. Probably the best use of a stealth anti ship missile would be as an individually fired weapon. Just one single missile fired from a sub might just go totally unnoticed until it hit. Submarine sonar is accurate enough that it should be able to get an IIR guided missile into acquisition range if it’s fired from fairly close in, say 30-75 miles, without needing updates. If it misses well then at least you only lost one missile.
Really I think this is what you are going to find. One can think up some very complicated and potentially effective anti ship weapons, but at the end of the day the best way to defeat a naval surface force is going to be conventional air power seizing control of the sky. If not for political restrictions preventing the Soviets from building fleet carriers, and forcing them down the big missile line of development I don’t think we’d be seeing nearly so much about anti ship missiles today or ever.
Stealth is in generally just much more useful against land targets. On land you can use terrain masking and knowledge of the enemy’s defensive batteries to greatly increase the effectiveness of both conventional and stealth air attacks. This way you aren't totally relying on stealth to survive, you are just using it to decrease the odds of being hit when you fly into parts of the flight path which are exposed. This is particularly true for a small low flying missile. You can also actually plan to blast gaps in enemy defensive by targeting key radar sites. This just doesn’t work nearly so well at sea when all the enemy defensive are continuously mobile and often more heavily armed and equipped then any single SAM site on land.
"This cult of special forces is as sensible as to form a Royal Corps of Tree Climbers and say that no soldier who does not wear its green hat with a bunch of oak leaves stuck in it should be expected to climb a tree"
— Field Marshal William Slim 1956