ThinksMarkedly wrote:As you wrote in a later reply, some of the tech would show up, just probably in less advanced form. But I think you're underselling Sonja here. Or overestimating Honor's contributions.
The LACs were ready for Honor to take to Silesia in 1910, so they must have been in development for some time. Probably as soon as Grayson fission tech made the power requirements of a modern combatant possible in such a small ship. And if LACs exist, so do CLACs. I suspect the reason why HMS Minotaur was so late is because the RMN simply couldn't devote yard resources for an untested prototype that early in the war.
I agree that the design work on the Shrikes, and on HMS Minotaur was probably underway before Honor took Wayfarer to Silesia. But the LACs she took were still fusion powered, and didn't have the bow walls of the Shrikes, nor the beta-squared nodes. However as one of the final pre-Shrike evolution of "the new LACs the Star Kingdom had been laying down over the last four T-years" [EoH] they did have Grayson derived compensators and far more powerful impellers than classic LACs. So they had stronger sidewalls and about 200g more acceleration (roughly 50% more) than a pre-war LAC. They also has slightly heavier energy batteries; but those were still broadside mounts and their missiles were still carried in single shot box launchers.
A Shrike would eat one for breakfast.
The results they showed in Silesia would have provided additional confidence that pursuing even more capable LACs was a worthwhile capability, as was the ability to deploy them from a mothership. But I suspect that we'd have gotten something quite like a Shrike eventually. And certainly the other fruits of Project Gram had been under R&D for decades - so MDMs, improved FTL, and even eventually FTL fire control were all in the development pipeline; and eventually would be likely to get introduced even if the war ended before they were ready.
But circling back to LACs / CLACs I'd actually say 2nd Hancock might have had a larger impact than Honor or her deployment to Silesia. That provided a real world proof that LACs could be devastating - even if much of that had to be chalked up to initial surprise and poor reactions on the part of the Peep forces. If the IAN had joined with the RMN and GSN before that point I have to think Operation Icarus would have likely have been preempted because McQueen wouldn't have had the RMN/GSN operational lull during which she was able to pull the operation together. Even if Truman had been able to expose how the ref had stacked the deck in the final test the delay in real combat might have slowed production and acceptance of the LAC/CLAC combo. (And if they did get into combat before the end of the war it might well be without the lessons learned that led to Ferrits to provided ECM/Decoy missile cover to the Shrikes)