by David Weber
Unfortunately from the missile-firer's perspective, active missile defenses had improved to such a degree that "not exactly good" odds of scoring a direct hit had turned into "not a chance in hell," which was the real reason capital ships had gone to such massive energy batteries. Missiles might still be effective against lighter combatants, but they'd been for all intents and purposes completely ineffective against the active and passive defenses of a capital ship, so the only way to fight a battle out had been to close to the sort of eyeball-to-eyeball range at which shipboard energy mounts could get the job done.
But then, little more than a century ago, things had begun to change when some clever individual had figured out how to create what was in effect a shaped nuclear charge. The possibility had been discussed in several of the galaxy's naval journals considerably longer than that, but the technology to make it work hadn't been available. Not until improvements in the gravitic pinch effect used in modern fusion plants had been shoehorned down into something that could be fitted into the nose of a capital missile.
A ring of gravity generators, arranged in a collar behind the warhead, had been designed. When the weapon fired, the generators spun up a few milliseconds before the warhead actually detonated, which was just long enough for the layered focal points of a gravitic lens to stabilize and reshape the blast from spherical to Gaussian, directing the radiological and thermal effects forward along the warhead's axis. The result was to capture far more of the blast's total effect and focus it into the area occupied by the lasing rods. By modern standards, the original laser heads had been fairly anemic, despite their vast improvement over anything which had been possible previously, and capital ship designers had responded by further thickening the already massive armor dreadnoughts and superdreadnoughts carried. But the ancient race between armor and the gun had resumed, and by fifty or sixty T-years ago, the laser head had become a genuine danger to even the most stoutly armored vessel.
There were other factors involved in the design of a successful laser head, of course. The length and diameter of a lasing rod determined its beam divergence, with obvious implications for the percentage of energy the laser delivered at any given range. Ship-mounted energy weapons, with their powerful grav lenses, could squeeze beam divergence in a way no laser head possibly could. There was simply no way to design those lenses into something as small as a laser head which, despite many refinements in design, remained essentially a simple, expendable rod which would have been easily recognizable by any pre-Diaspora physicist.
In the current Mark 23 warhead, the laser heads (the assemblies containing the actual lasing rods) were roughly five meters in length and forty centimeters in diameter, which carried the thread-thin lasing rods suspended in a gel-like medium. The laser heads also incorporated the wolter mirrors to amplify the beampath, reaction thrusters, lots of fuel, on-board power, telemetry, and sensors. They were carried in bays on either side of the weapons bus, which ejected them once the missile had steadied down on its final attack bearing. Each of the laser heads mounted its own thrust-vectoring reaction control system, which acquired the target on its own sensors, thrust to align itself with the target's bearing, and quickly maneuvered to a position a hundred and fifty meters ahead of the missile. At which point the gravity lens came up, the warhead detonated, and the target found itself out of luck.
The critical factors were laser head rod dimensions, the yield of the detonation, and—in many ways the most critical of all—the grav lens amplification available. Which was the main reason capital missiles were so much more destructive than the smaller missiles carried aboard cruisers and destroyers. There was still a minimum mass/volume constraint on the grav lens assembly itself, and a bigger missile could simply carry both a more powerful lens and the longer—and therefore more powerful—lasing rods which gave it a longer effective standoff range from its target. That was also the reason it had been such a challenge to squeeze a laser head capable of dealing even with LACs into the new Viper anti-LAC missile. The bay for the single lasing rod was almost two thirds the length of the entire missile body, and finding a place where it could be crammed in had presented all sorts of problems.
The general Manticoran technical advantage over the Republic of Haven had made itself felt in laser head design, as well. Manticoran missile gravity generators had always been more powerful on a volume-for-volume basis, and Manticoran sensors and targeting systems had been better, as well. The Star Kingdom had been able to rely upon smaller warheads and greater lens amplification to create laser heads powerful enough for its purposes, especially since it could count on scoring more hits because of its superior fire control and seeking systems. The Republic had been forced to adopt a more brute force approach, using substantially larger warheads and heavier lasing rods, which was one of the factors that explained why Havenite missiles had always been outsized compared to their Manticoran counterparts.
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.
Producing the Mod G had required what amounted to a complete redesign of the older Mark 16 weapons buses, however, and BuWeaps had decided that it neither wanted to discard all of the existing weapons nor forgo the improvements, so Admiral Hemphill's minions had come up with a kit to convert the previous Mod E to the Mod E-1. (Exactly what had become of the Mod F designation was more than Helen was prepared to guess. It was well known to every tactical officer that BuWeaps nomenclature worked in mysterious ways.) The Mod E-1 was basically the existing Mod E with its original gravity generators replaced by the new, improved model. That was the only change, which had required no adjustments to buses or shifting of internal components, and the new warheads could be fused seamlessly into the existing Mark 16 weapons queues and attack profiles. Of course, with its weaker, original warhead it would remain less effective than the Mod G, since its destructiveness was "only" doubled . . . while the Mod G laser heads' throughput had increased by a factor of over five.
And, she thought, if they apply the same approach to the Mark 23—assuming the new grav lens scales—and then couple it with whatever it was Duchess Harrington's fire control used at Lovat . . .
"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.
"Sir, it's all on the chips there," she said respectfully, indicating the folio she'd just delivered.
"I'm sure it is," Lynch agreed. "On the other hand, I've come to know the Commodore at least a little better since he came aboard, and I'm inclined to doubt that he 'just happened' to discuss this with you before he sent you off to deliver his memo to me. He doesn't strike me as the sort who 'just happens' to do much of anything without a specific purpose in mind. So why don't we just consider this an opportunity for a little hands-on tactical brainstorming session for just you and me?"
Helen felt a distinct sinking sensation and suppressed a powerful urge to swal
low hard. Then, as Lynch tipped his chair further back, she saw the amusement in his eyes. Not the amusement at having put her on the spot she might have seen in some superior officers' eyes, but the amusement of watching her work through his reasoning and discover he was almost certainly right about what the Commodore had had in mind.
"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. TheKitty—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—"
Helen Zilwicki leaned further forward in her chair, hands beginning to gesture enthusiastically as she forgot all about her qualms over her junior rank and lack of experience, and never even noticed the amused approval in Horace Lynch's eyes as she gave herself up to the discussion.
Chapter Thirty-One
"You wanted to see me, Milady?"
"Yes." Baroness Medusa looked up and waved for Gregor O'Shaughnessy to step fully into her office. "I was afraid you'd already left the Residence," she added as he obeyed the gesture and settled into his favorite chair.
"Ambrose screened to say he was hung up in some force analysis discussion. We've moved our meeting schedule back a couple of hours."
"It's just possible you won't be having that particular meeting at all." O'Shaughnessy's mental ears pricked up at the governor's tone, and she produced an expression which was more grimace than smile as his eyebrows rose.
"Should I assume there's been some new development, Milady?" he asked after a moment.
"More like a new wrinkle on a development we were already worrying about," she replied. "I've just received a formal communication from Alesta Cardot."
"Ah?" O'Shaughnessy frowned. "Does this have anything to do with what's been going on in Pequod, Milady?"
"That's what I've always liked about you, Gregor," Medusa said with a snort of genuine amusement. "You're quick."
"A natural talent, Milady." O'Shaughnessy smiled briefly, then sobered. "And just what did New Tuscany's Foreign Minister have to say about her obstreperous merchant spacers?"
"Interestingly enough, she didn't have a thing to say about her spacers. Had quite a bit to say about the conduct of our naval personnel, on the other hand."
"Why am I not surprised?" O'Shaughnessy murmured. Then he leaned back in his chair and stretched his forearms out along the armrests, fingertips drumming while he considered.
Medusa left him alone for several seconds. Gregor O'Shaughnessy could be infuriating when he truly put his mind to it. Despite his best efforts, his innate streak of intellectual arrogance got loose from time to time, and he'd been known to treat colleagues with a sort of dismissive patience which could all too easily come across as condescension. For that matter, sometimes it was condescension, although he didn't seem to realize it. And there were times when condescension turned into something considerably uglier and more dismissive if he decided the object of his ire was being particularly stupid by not grasping what he was saying. But he had impressive strengths to set against such minor character flaws. For one thing, he was ruthlessly intellectually honest. For another, he was always prepared to admit he'd made a mistake, if someone could demonstrate that he had, and however scathing he might have been during the debate which led up to that demonstration, he didn't hold the fact that someone else had been right against the other person afterwards. And he was also very, very smart.
"I take it Cardot's position is that Commander Denton and his people aren't just loose warheads?" he said after a moment.
"Oh, on the contrary," Medusa said dryly. "She's taken exactly the position that they are loose warheads. In fact, she's taken it so elaborately that no one could possibly miss the fact that she considers it a polite diplomatic fiction she's offering so that we can use it as a political fig leaf. From the tone of her note, it's obvious she intends to give us an out by repudiating and reprimanding Denton, thus proving we would never have authorized, far less instigated, such 'a pervasive pattern of Manticoran harassment of New Tuscan merchant shipping in the peaceful pursuit of legitimate commercial interests.' "
"She actually said that?" O'Shaughnessy said, then blinked as Medusa nodded. "My, whatever they're up to, they don't mind being a bit blatant about it, do they?"
"No, and that worries me," the governor admitted. She tipped back her own chair and pinched the bridge of her nose between her right thumb and forefinger. "This is about as subtle as heaving a brick through an office window during business hours. Oh," she released her nose to wave her hand, "all of the proper diplomatese is in place. In fact, in a lot of ways, it's quite a smoothly composed note. But I doubt any genuinely impartial observer could possibly miss the fact that she's systematically building a case designed to justify some unfriendly action on New Tuscany's part by disguising it as self-defense."
"How exactly did she present it, Milady?"
"Essentially, it's a formal protest alleging that Commander Denton—and apparently the entire ship's company of HMSReprise—has systematically insulted, obstructed, and harassed New Tuscan merchant ships pursuing their lawful business in the Pequod System. She's enumerated all of the incidents Denton had reported to us, and added quite a few more. At least a couple of them occurre
d—according to her, at least—after Denton's dispatch to Admiral Khumalo, which presumably explains why we hadn't already heard about them. Others, though . . ." She shook her head. "Others, Gregor, have that 'manufactured out of whole cloth' feel to them. I've got the distinct feeling that they didn't really happen at all."
"Fictitious encounters tucked away in the underbrush of genuine ones, you mean?"
"That's exactly what I mean." Medusa's expression was grim. "It looks like they were recording all of our people's official shipboard visits, as well. According to them, they 'just happen' to have imagery available on a handful of inspections. No one was recording them on purpose, you understand. It was just a fortuitous coincidence that the internal systems of the ships in question were switched on at the critical moment. It's obvious they went through those recordings thoroughly before they very carefully picked the material Cardot included with her note, and I don't doubt for a moment that she's taken the remarks of our people even more carefully out of context, but they do have at least some imagery. Which is one reason I find the thought of fictitious incidents so disturbing. I mean, they have to know we'll realize they're lying about those . . . episodes, so who are they creating them to impress in the first place? It has to be a third party, and I think that also explains the imagery they're presenting, as well. You know how any imagery tends to substantiate even the most outrageous accusations for some people."