Assessing Navy force structure designs:
Some specific factors underpinning fleet design need to be considered. There are essentially two reasons for having more numerous, smaller ships to compose at least part of the fleet vice a relatively smaller number of larger ships, with one being strategic, the other operational/tactical, and both having to do with dispersal. At the strategic level, as was implied by CS21, a comprehensive defense of the global system requires the Navy to be in many different places, some continuously, for plenty of reasons. In most forward presence cases, high-end warfighting capability is not required, so “constabulary” units could be smaller, cheaper, less capable but thus more numerous for the same price as larger, traditional combatants. Having a large fleet of these would relieve mission pressure on those large warfighting ships. The objection to such ships is precisely that they have less combat capability, so in effect such a fleet design could be seen as reducing the overall warfighting power of the Navy.
At the operational/tactical level, dispersion is mostly about warfighting. In previous eras, bigger was stronger. The capital ship, be it a four-decker under sail, a dreadnought with major caliber guns, or a nuclear aircraft carrier, each was able through its superior offensive power to defeat any other class of ship. Of course, there were always caveats to this presumption of dominance, from fire ships to mines, to submarines and Kamikazes. But the capital ship has persisted through it all, with the current instantiation being the Ford-class nuclear aircraft carrier.
Capital ships represent both concentration of capability and concentration of investment, which is why there are always relatively few of them. The inverse of the capital ship is the flotilla: a large number of small craft whose modus operandi is to swarm, perhaps like a pack of wolves harassing and eventually bringing down a bull bison. The idea of many platforms and payloads attacking from different directions complicates the defense of the capital ship. Critically, the weapons possessed by units of the flotilla must have sufficient range and lethality to offset and overwhelm the defensive capability of the capital ship and its escorts.
Enter the anti-ship missile (ASM). Current versions can travel hundreds of miles, have various characteristics that makes them difficult to shoot down, and have demonstrated lethality. The ASM broke the historical linkage between weapon power and ship size needed to carry it. Now several ASMs can be carried by craft displacing less than 500 tons.
I was on that network-centric Navy issue when the Ford class was still a blueprint.
