Vince
Vice Admiral
Posts: 1574
Joined: Fri Apr 09, 2010 11:43 pm
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Rakhmamort wrote:Vince wrote:The problem for SLN CM point defense is threefold: 1) The speed of incoming DDMs or MDMs (as opposed to the much lower terminal speed of SDMs) makes it much harder to intercept them. See Effective intercept range for counter-missiles. 2) They don't have enough counter-missile tubes to launch and control CMs in the numbers necessary to defeat double-stacked salvos of attack missiles. 3) Their ECCM (ability to see through incoming ECM missiles and accurately identify attack missile threats) is really bad. At the Battle of Saltash, with the very first salvo, the four combined BCs managed exactly one successful counter-missile interception against 100 attack missiles (the other 20 were Dazzler and Dragon's Teeth ECM missiles). One third of the lasers attacked the roof and floor of SLNS Paladin's wedge, the rest got through. The result was the BC was lost with all hands.
And yet an old solly BC with battle damage, crewed with undertrained Monicans managed to take out 30 missiles out of a salvo of 35 Mark 16 missiles.
That wasn't just one old Solly BC with battle damage and crewed with under-trained Monicans, it was one old Solly BC with battle damage and 2 completely undamaged old Solly BCs, all crewed with under-trained Monicans, but with expert Technodyne tech-reps actually manning the critical offensive and defensive tactical systems (but still taking orders from the Monican Admiral on maneuvering--late turn to open broadside--and what to fire offensively--all attack missiles and no ECM birds in salvos directed against Terekhov's squadron). The range at Monica was not quite as long as the range at Saltash, with lower terminal closing velocities (but still quite high) as a result. Other differences: At Monica, while only Hexapuma was firing, total salvo size was 35, with 4 Dazzlers and Dragon's Teeth (ECM missiles consisted 11% of total salvo size) and 31 attack missiles. Also Terekhov was firing probing salvos, so that the rest of his squadron would be able to fire with maximum effect when the enemy BCs entered range. At Saltash, total salvo size was 120, with 20 Dazzlers and Dragon's Teeth (ECM missiles consisted of 1/6 or 17% of total salvo size) and 100 attack missiles. Details of the battle at Monica: First salvo (31 attack missiles, 4 ECM missiles) directed against one undamaged ex-SLN BC in a group of three, with Technodyne tech-reps assisting the crews: Shadow of Saganmai, Chapter 58 wrote:"Guns," he said to his youthful acting tactical officer, "your target is the lead bogey. I want double broadsides at twenty-five-second intervals. You can have four tubes in each salvo for Dazzlers and Dragon's Teeth. Five salvos on Bogey One, then shift to Bogey Two." "Aye, aye, Sir." "Ms. Zilwicki, lock the Alpha-Seven array directly to Lieutenant Bagwell." He turned his chair to face the EWO. "These people's defenses are going to be good—very good. We need to hammer them, and to do that we need data on their EW capabilities—fast. The rest of the Squadron will have over ten minutes to engage after they enter their effective powered envelope, but for them to use that time, we need to feed them everything we can pry loose about these people's defensive systems, and our missile range advantage is the only crowbar we have. We need to make them show us their best, people."
***Snip***
The arrow-shaped icons of thirty-five missiles streaked towards his trio of ships, accelerating steadily at 46,000 gravities. Twenty-five seconds later, a second salvo followed. Then a third. A fourth. "The target is Typhoon," CIC announced as the first counter-missiles went out to meet them, and Horster nodded. Typhoon was his lead ship. He'd expected her to draw the enemy's fire, assuming they weren't stupid enough to divide it among all of his units.
***Snip***
The attack salvo jinked and wove, threading through, past, and around the suddenly dazed and clumsy interceptors which were supposed to have stopped it, then drove past the second wave of CMs, which had already locked onto Abigail's next attack wave. Four of the first wave's birds abruptly wavered, losing lock, veering away as the Monicans' own EW lured them astray. Then a fifth followed them. But thirty held lock, and their closing velocity was so great the defenders had no time to vector yet another wave of counter-missiles onto them. Then Bogey One's forward laser clusters opened fire. * * * This time Janko Horster did swear. Typhoon's shipboard sensors were less affected by the Manties' infernal jammers than the counter-missiles' seekers had been, but it was painfully obvious they hadn't been unaffected. They fired late, and their solutions were poor. An Indefatigable-class battlecruiser's point defense clusters should have been more than equal to a salvo that size, but she stopped only fourteen of them. The other sixteen got through. Fortunately, three of the leakers must have been EW platforms. But thirteen laser heads detonated in sequence, so rapidly it looked like one, continuous eruption, directly ahead of Typhoon. The bomb-pumped lasers stabbed straight down the throat of her wedge, unobstructed by any sidewall. Typhoon's forward hammerhead was massively armored against just such an attack, but not even her armor could shrug off that staccato thunder of stabbing X-ray lasers. It stopped a dozen of them, but another half-dozen blasted straight through it. They knocked out two of her chase missile tubes, one of her chase energy mounts, two counter-missile tubes and a laser cluster. And, far worse, one shattered her forward radar array. It blinded her, put out the eye of her forward missile defenses, and a second wave of attacking missiles was only twenty-five seconds behind. First salvo hits on Typhoon: Out of 31 attack missiles, 13 missiles scored hits, of which the total number of X-ray lasers hitting Typhoon was 18. Damage report: Of the 18 X-ray lasers that hit Typhoon, 12 were stopped by her armor, and 6 more got far enough through the armor to inflict damage, some of which was fairly significant. 2 chase missile tubes, 1 chase energy mounts, 2 CM tubes, 1 PDLC. Loss of forward radar array, with the result of her forward missile defenses being blinded. If Hexapuma's Mark 16 DDMs had been equipped with the Mod G warhead, but everything else had been the same, of the 13 missiles that scored hits, and the 18 individual X-ray lasers that hit Typhoon, ALL of the X-ray lasers would have done significant damage, possibly mission-killed, Typhoon (remember that Hexapuma's Mark 16 original warheads were heavy cruiser or battle-cruiser in terms of energy delivered to target, while the Mod G warhead's energy delivered to target exceeds that of a SLN SD captal missile. Second salvo (31 attack missiles, 4 ECM missiles) directed against one damaged (and blinded--lost forward radar) ex-SLN BC in a group of three, with Technodyne tech-reps assisting the crews: Shadow of Saganami, Chapter 58 wrote:He watched the plot as Abigail's second double broadside roared into the Monicans' outer defense zone. He saw the instant that its Dazzlers came on-line and the counter-missiles which had been speeding to meet them veered aside. But this time there was time for a follow-on wave of CMs to be vectored onto them. Seventeen of them were intercepted and blotted away, and then the laser clusters began to fire. Another twelve were picked off, but six got through, and Bogey One staggered as more stilettos drilled through her armor. * * * Typhoon shuddered as a second wave of X-ray daggers bored through her armor. She should have stopped more of them—all of them—with her lavish anti-missile defenses, but she couldn't see them. Her point defense lasers had become dependent upon relayed tracking reports from Cyclone and Hurricane, and that simply wasn't adequate against targets coming in so fast. Especially not targets as elusive as Manticoran Mark 16 missiles. Fresh damage reports inundated her bridge, and her acceleration faltered as four of her beta nodes blew. Power surges cascaded through her systems, starting in Impeller One and Laser Three. Automatic circuit breakers stopped most of them, but three of the breakers themselves had been knocked out. Rampant energy surged past them, and a broadside graser's superconductor ring blew, shattering internal bulkheads and adding its own massive power to the surge. The surge that came roaring down the graser's main feed trunk and straight into Power One. The untamed torrent of energy thundered into the compartment, and an already nervous petty officer leapt back as his control panel blew up. He fell to the decksole on the seat of his pants as electrical fires danced through the control runs, and an alarm began to scream. Second salvo hits on Typhoon: 6 missiles scored hits. Damage report: 4 beta nodes, Power One receives massive power surge setting up for Golden BB in salvo 3. Other damage that started the power surge that went into Power One. Tactical analysis: The fact that there was enough time for a second wave of counter-missiles to target the second salvo indicates that the closing velocity of the Mark 16 DDMs at Monica was lower than it was at Saltash.If the all the missiles that got through had Mod G warheads, with everything else the same, Typhoon would probably been either mission-killed or completely destroyed with Hexapuma's second salvo. Post analysis of the Battle of Monica by Ensign Zilwicki, if Hexapuma had Mark 16 DDMs with the Mod G warhead, as given to Quentin St-James' tactical officer, with some of Terekhov's points: Storm From the Shadows, Chapter 30 wrote:When she thought about it, she rather suspected that the commodore was running her harder than he actually had to. For example, there was her present mission. There was absolutely no reason she could think of why the commodore couldn't have simply screened Commander Horace Lynch, Quentin Saint-James' tactical officer, for this particular message. In fact, it probably would have been more efficient. But, no; he'd decided Ensign Zilwicki should trot right on over to the TO's office and deliver it in person. Helen didn't mind the exercise, and the actual message was pretty interesting, but the fact remained that there had been other—and arguably much more efficient—ways for the commodore to deliver it.
***Snip***
"And what can I do for the Commodore this morning, Ms. Zilwicki?" he asked. "He asked me to bring you this, Sir," she said, placing a chip folio on the corner of his desk. "It's some thoughts he's been having about the new laser head modifications." "I see." Lynch drew the folio closer to him, but he wasn't looking at it. Instead, he had cocked his head and those sharp brown eyes were studying Helen. "And would it happen that he discussed some of those thoughts with you before he sent you to see me?" "As a matter of fact, he did say a little something about them," Helen acknowledged a bit cautiously.
***Snip***
"I think we might agree to consider that a prefatory remark," he said gravely. "But with that out of the way, what do you think of them?" The faint twinkle Helen thought she might have seen in his eyes eased some of her tension, and she felt herself relax a bit in the chair. "I think they're going to have a very significant tactical impact, Sir," she said. "The Mark 16 is a big enough advantage against other cruisers and battlecruisers as it stands, but with the new laser heads, they're actually going to be able to hurt genuine capital ships, as well." She shook her head. "I don't think the Havenites are going to like that one bit." "No doubt," Lynch agreed. "Although I trust," he continued more dryly, "that what you've just said doesn't mean you think it's going to be a good idea for a heavy cruiser to take on a superdreadnought, even with the new laser heads?" "No, Sir. Of course not," Helen said quickly. "I guess I was just thinking about Monica, Sir. If we'd had the new laser heads there, I don't think those battlecruisers would have gotten into their effective range of us in the first place. Or, at least, if they had, they would've had a lot more of the stuffing kicked out of them first." "Now that, Ms. Zilwicki, is a very valid observation," Lynch said.
***Snip***
But now, thanks primarily to fallout from the Star Kingdom's ongoing emphasis on improving its grav-pulse FTL communications capability, BuWeaps had completed field testing and begun production of a new generation of substantially more powerful gravity generators for the cruiser-weight Mark 16. In fact, they'd almost doubled the grav lens amplification factor, and while they were at it, they'd increased the yield of the missile warhead, as well, which had actually required at least as much ingenuity as the new amplification generators, given the way warheads scaled. They'd had to shift quite a few of the original Mark 16's components around to find a way to shoehorn all of that in, which had included shifting several weapons bus components aft, but Helen didn't expect anyone to complain about the final result. With its fifteen megaton warhead, the Mark 16 had been capable of dealing with heavy cruiser or battlecruiser armor, although punching through to the interior of a battlecruiser had pushed it almost to the limit. Now, with the new Mod G's forty megaton warhead and improved grav lensing, the Mark 16 had very nearly as much punch as an all-up capital missile from as recently as five or six T-years ago.
***Snip***
"And what else did the Commodore discuss with you about them, Ensign Zilwicki?" Lynch's question recalled her from her thoughts, and she gave herself a mental shake.
***Snip***
"All right, Sir," she replied with a smile, settling herself more comfortably in her own chair. "Where were you thinking we should begin?" Her tone was respectful, but almost challenging, and he smiled back at her as he heard it. "That's the spirit, Ensign Zilwicki! Let's see . . ." He swung his chair gently back and forth for a few moments, then nodded to himself. "You've already mentioned what happened at Monica," he said. "I've read the tac reports from the battle, and I know you were on the bridge during the engagement. In fact, you were acting as missile defense officer, correct?" "Yes, Sir." Helen's eyes darkened slightly at the memories his question brought back. Memories of her, sitting at Abigail Hearns' side, managing the entire squadron's missile defenses while the Monican-crewed battlecruisers stormed steadily closer. "In that case, why don't we start with your evaluation of how the availability of the Mod G—or, for that matter, the E-1—would have affected Commodore Terekhov's choice of tactics?" Helen frowned thoughtfully, the darkness of memory fading as she concentrated on his question. She considered it carefully for several seconds, then gave her head a little toss. "I think the main change in his tactics might have been that he'd have gone for early kills." "Meaning what, exactly?" Lynch's tone was an invitation to explain her thinking, and she leaned slightly forward. "The thing was, Sir, that I think we all knew the only way we could realistically hope to stop those battlecruisers was with massed missile fire at relatively short range. Oh, we got one of them at extreme range, but that had to have been a Golden BB. No way did we manage to get deep enough to hit anything that should have blown her up that way!" She shook her head again, her expression grim as she recalled the spectacular destruction of MNS Typhoon and her entire crew. Then she shook herself mentally and refocused on the present. "Anyway, we knew we sure couldn't afford to let them into energy range of us, and because our laser heads were so much lighter, we knew we were going to have to concentrate a lot of hits, both in terms of location and time, if we were going to get through their armor. The Kitty—I mean, Hexapuma—was the only ship we had that was Mark 16-capable, and that meant we couldn't achieve that kind of concentration outside standard missile range. So what the captain was actually using our long-range fire for was to get the best possible feel for the Monicans' active defenses and EW capabilities. He was using the Mark 16s to force them to defend themselves so we could get a read on their defenses and pass it to the rest of the squadron to maximize our fire's effectiveness once they came into the range of the rest of our ships. "But if we'd had Mod Gs, instead of the old Mod Es, we would have been able to get through battlecruiser armor even at extreme range and without the kind of concentration we had at the end of the battle. So, in that case, I think he still would have been probing for information, but at the same time—"
All quotations from books: Italics are the author's, boldface and underlined text is my emphasis.
------------------------------------------------------------- History does not repeat itself so much as it echoes.
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