Righto...Force Z.
Now,
assuming, that they end up in ABDA's area...well. Let's look at things this way.
1. Repulse and her effectiveness or lack thereof.
Repulse is plenty effective, to be quite honest, in this situation. Yes her armor is crap. But, honestly, so is the armor of anyone she is likely to fight here. If she's bullying cruisers, she's bullying cruisers. If she's bullying Kongou, she's bullying Kongou. Differences in layout and plate quality aside, Kongou-class ships and Repulse have basically the same armor. Repulse is slightly faster, but not by much. Repulse has better guns, but fewer of them.
The difference here comes down mostly to fire control systems. Repulse has, at bare minimum, radar FC fitted. It's an open question what that radar is tied into...there's a chance it's the old (and very crap) Dreyer Table. There's a chance it's a more modern system, but not
the most modern she could have- we can say for sure she doesn't have the best. We can't say for sure that she doesn't have something better than a Dreyer. The thing is, though, that even if she has a Dreyer she's still got radar getting the range (the hardest part) pretty much right away. Maneuvering will play merry havoc, but she's still pretty well off for the age of the ship and the lack of Renown-style refit.
Against a Kongou, she may well be shooting better. I'm not familiar enough with Japanese ships to say for sure on that one. I'm sure someone else can correct me if I'm wrong
Regardless, Repulse is at least not
totally blind and stumbling around when shooting. Maybe better, maybe worse, but not as bad as it could be. Her guns can certainly get through even Nagato's belt. A Kongou is mincemeat. And, frankly, it is highly unlikely Japan uses anything other than a Kongou or
maybe an Ise here. They're not going to use Nagato or Mutsu. Those two are needed for the KANTAI KESSEN.
And for bullying cruisers or Kongous, Repulse is perfectly sufficient. She's fast enough, strong enough, and actually armored enough to do it. Planes are a problem though. As is her deck armor.
But...it's not like she'll ever be alone.
2. PoW
Yeah, what's already been said doesn't need repeating here. She's superior to anything in-theater unless the Japanese toss Yamato at the problem (which they won't). Even then she could give a good fight of it. Unlike Repulse, we
can say that PoW has modern fire control. People tend towards underestimating her guns because they're relatively small caliber for a battleship. But those guns have very good penetration values, and will mulch anything the Japanese are liable to send at her. Her own armor is probably second only to Italian plate in actual quality, and ludicrously thick. Unlike Repulse, she's also got quite good deck armor.
PoW, if not sunk by aircraft, is the best BB in the area until American fast BBs show up. Torps are the real threat here.
3. Cruisers
Looking at 'number of guns' or 'thickness of armor' isn't a good measure here. American cruisers have very good guns, very good shells, and
very good fire control. Houston, in particular, just came off a fairly major refit. She probably has modern fire control
and is getting radar. She'll outshoot most anything, given the chance. Exeter has already proven herself against Graf Spee.
It's certainly not a case of the Japanese having a major edge.
And since I don't have time to do more, I'll leave it off there. I can answer questions tomorrow when I get out of the teaching if needed. Unless something major comes up before I sleep for the night.
Also:
People are still forgetting a rather large butterfly.