Theemile wrote:There has been a Mk-13 ER mentioned a couple of times. As an assumption, it is backwards compatible with the mk 13's launchers (which the mk 14 is not). It must have longer range than the stock mk 13 (hence the ER designation), but has less range than the mk 14. We can assume that the Mk 13, the mk13 ER and the Mk 14 all initially had the same warhead, because the later mk16e has the same warhead as the mk 13. The mentions were post SoS, so the mk13-ER might be a later development as the technology matured, and would allow the Star Knights and Sag-As considerably more effective life.
The Valiant was launched in 1902, predating ER missiles by >10 years, and being a CL most likely used Mk34s. It was the last RMN CL design prior to the Avalon design, so, if not a Valiant, the Gallant would be even older. The Valiant as a direct replacement for the Courageous class, with most of the class's names carrying over to the new class. All the Courageous's were retired or sold out of RMN service by 1909, indicating that nothing at Monica in 1920 was that old. SO, with Audacious, Gallant, and Defiant definitely fall into the Courageous/Valiant naming scheme, one can assume that they were Valiants.
Also, Terehkov's nightmare was unloading the Defiant's bow grasers into enemy ships until they slagged. The only first war CL with bow grasers was the Valiant class. The only first war CLs with broadside grasers were Courageous and Valiant classes. With all the Courageous class out of the fleet by Monica, only the Valiants fit the bill.
In the original OOPSIE of SoS, the Aegis launched it's first shipkillers several seconds before the Star Knight CAs, but this was updated in the final for some reason. One could assume a decision was made that it's small magazines would be best spent when throwing it's weight with the rest of the fleet. The Hexapuma was playing Picador with the BCs, weakening them and finding their ECM for the rest of the fleet. 2 or 3 enhanced salvos might not have been seen as a benefit, especially when it might cause the BCs to shift focus to the lesser defended Aegis. (which ended up being able to take care of herself.)
Interesting, and good detective work coming up with that evidence about the CL class.
I took another look at this and some stuff looks odd with the geometry, but it does say the BCs had an "overtake advantage of 38,985 KPS", that "Assuming the battlecruisers' shipboard missile performance approximated ONI's estimates, their range would be under fifteen million kilometers, despite their overtake"
[1]That tracks. If ONI had solid numbers on the Javelin (180s @ 47,600 gees) then with that closing velocity I get 14.5 million km (if they assumed RMN SDM performance 180s @ 46,000 gees then 14.3 million km).
The part that doesn't track is the Mk16 numbers it gives "Hexapuma's maximum powered envelope at launch was increased to almost thirty-seven million kilometers". At that closing velocity the 29 million km reach of the Mk16 should have increased to 43 million km!
Then it says
Shadow of Saganami - Ch 58 wrote:Warlock would also have a slight range advantage over the Monican battlecruisers, but it wasn't great enough to change the tactical equation significantly. Her tubes were simply too small; she couldn't handle even the Mark 14 missiles the Saganami-Bs had been designed to fire, much less a Saganami-C's Mark 16s, so her advantage would be little more than three million kilometers
. If we assume Warlock's missile acceleration is no higher than other RMN missiles then given that closing velocity that seems to imply they somehow got another ~15% endurance out of the drive nodes, 207s @ 46,000 gees. Which would give 17.7 million km in this geometry or 9.6 million km from rest (about a 30% increase in range).
That's a far cry from the 25% endurance improvement they got out of the Mk31 CM and other people have gotten from their ERMs, much less the 50% increase the Mark14
seems to have.
Oh, and rereading it Vigilant was basically turned into a hulk by the earlier pod launch - that's why we don't see her missile range discussed as that only comes up in the later engagement with the BCs.
So like the text says Warlock can engage about 75 seconds before the ex-SLN ships can so why she waited until just seconds before the rest of the RMN ships opened up at 11.4 million km is a mystery. (For 2 reasons. Given the closure rate even old RMN missiles should have had 14.3 million km range (less than the 14.7 the ex-SLN ships should have had). But Warlock's stated 3 million km range advantage over those SLN ships should have had her firing 75 seconds before they did or 85 seconds before the rest of her RMN consorts.
Well, except that Aegis could have been firing from 26.9 million km, or 236 seconds before Warlock.
I guess despite talk of Warlock's range advantage (and Aegis's unmentioned one) Terekhov decided to hold off until he could mass the fire of those 2 with remaining the "severely mauled" CL and pair of DDs. Otherwise even if he hadn't had Aegis thickening Hexapuma's salvos she and Warlock could have chimed in 75 seconds earlier and got in 9 unopposed salvos before the BCs reached their range.
And why have say the ex-SLN BCs had almost a 15 million km range, but not have them return any fire until the rest of the RMN squadron opened up at 11.4 million km? Even over-fixated as they were on closing the range on the RMN units shouldn't they have been firing their chase tubes at Hexapuma as soon as they were in range? (I could see maybe focusing on the 1 unit that was attacking you, but to withhold fire for the 85 seconds it would take to go from the 14.7 million km where you enter range to the 11.4 where you finally open up now seems insane.
Still it is interesting that there's a
somewhat extended drive missile for the old BCs even if it wasn't really taken advantage of here. But I wonder why there wasn't any equivalent for the CLs or DDs, not even the ones newer than a Starknight.
[1] To simplify calculations I am ignoring ship acceleration during this missile exchange and treating it like they were just coasting together at 38,986 KPS. Though a ballpark estimate shows Hexapuma's acceleration advantage over the time from first firing until the BCs returned fire should be less than 2,000 KPS, so a relatively small impact