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kzt
Posts: 11360
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Well, we know that graser torps can maneuver and track while firing, as they did that when destroying the stations.
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ThinksMarkedly
Posts: 4645
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The problem here is the trade-off. Given absolutely no other trade-off, obviously a longer firing graser is better. The longer you can fire, the further out you can decide to fire. And you don't have to fire earlier if you don't want to.
But there are trade-offs. Nothing is free. Suppose to make a missile fire a full half a second implies only throwing 10% as many missiles, because they're far bulkier (twice as big in all linear direction = 8x the volume; add in packing and it's easy to say 10% throw ratio). Is it worth it? Because with 10% as many missiles, the defensive fire becomes more deadly. It'll likely still kill as many incoming missiles in absolute terms, which means in relative terms it'll be far more devastating. Is that worth it? The moment a missile fires, it declares itself as a warhead, not a pen-aid or ECM. It becomes the target for all defensive fire that is yet uncommitted. Moreover, before the moment it fires, it must drop its wedge and immolate itself, so it has no acceleration. It's locked into a single ballistic course, which makes it easier to pick for defences. And I also don't buy it could perform the turns that Jonathan_S calculated. It's likely lost that ability the moment it began firing and is now subject to Newton's First Law. So we have to look into those trade-offs. I also don't buy the problem that the gtorps were invented to solve apply to the GA at all. The gtorps existed to be stealthy warheads and thus to produce maximum damage from as few weapons as possible. The GA is not concerned with either stealth when engaged in battle, nor in weapons numbers. In fact, the more missiles and more noise, the better. |
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Jonathan_S
Posts: 9030
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Sure, but the graser torps don't appear to have been screaming in at over (possibly well over) half the speed of light. A relatively slow closure rate gives you lots of time to track your targets, plus a low rate of angular change in their bearing, making it pretty easy to keep your beam where you want it. But take that same warhead and somehow, impossibly, stick it on a high performance missile, like cthia proposed, and I think things get more complicated. That stripped down CL laser is damned devastating on slow moving, long endurance, surprise weapons like a graser torp. But there are trade-offs for it, and trade-off that mean it looks to me to be a bad fit on a non-stealthily mass fire weapon usually fired from a relatively non-stealthy platform. But as long as conventional impeller ships are the backbone of a navy I don't see the tradeoffs of the graser torp justifying a wholesale replacement of MDMs with graser torps; even once everybody has the tech for them. So I suspect this stripped down self-destructing graser will remain a niche warhead / capability for quite some time (Though once the tech's out there I suspect at least some navies will start carrying a few graser torps, maybe in somewhat enlarged boat bays, to have them on hand for the specific situations where they do excel.) |
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cthia
Posts: 14951
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I'd like to thank everyone for the numbers. KZT helped my fogged brain about the closing velocity of missiles. I was not certain I remembered it being 250,000 km/sec which I originally based my calculations on. Thanks kzt.
Are we certain that will remain a reality? No mere graser can fire for 3-seconds. No mere graser has been able to sustain fire, period. GA grasers shoot their wad in a few microseconds then die. Are we certain that sustained firing even from 500,000 km won't be effective? At any rate, continuously bombarding the sidewalls with directed energy for three million times longer than normal and in a Doppler Effect of directed energy I'm betting will fry any sidewall. And if a sidewall has been weakened - as in it is faltering - then it is done. ****** * Death Blossom mode appears to have some missile defense possibilities as well. These things going into DB mode in the midst of a missile launch may perform a lot better than barricade without the need for the "hinky geometry." That trick could already be a part of the LD's repertoire, which should perform even better with its low accel. Plus the fact that Manty missiles fly clumped together. Son, your mother says I have to hang you. Personally I don't think this is a capital offense. But if I don't hang you, she's gonna hang me and frankly, I'm not the one in trouble. —cthia's father. Incident in ? Axiom of Common Sense |
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munroburton
Posts: 2379
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Any graser can overfire - and be destroyed in the process:
As for the effects of battlecruiser-grade grasers at half a million klicks:
Out of about 50 shots, only six got through to cause minor damage. The same does not apply in reverse, though:
What really underlines the asymmetry of that whole exchange is, Bellerophon has 33 energy mounts in a broadside. That works out at just eight shots per enemy battlecruiser. Cruiser grasers strapped to torpedoes/missiles are initially going to represent an improvement of "dozens of times" over a capital laserhead - not thousands. To get to where you want them to be(the same result as a grav lance+energy torpedo armananent at range?), the graser torpedo/missile would probably have to be as large as a destroyer or even a cruiser, one built around a superdreadnought's spinal graser. After all, a Shrike is wrapped around a BC's graser and that's about a quarter the diameter of a SD's. It seems like a rather large investment to make for a purely one-shot weapon, to say nothing of the logistics involved in moving such weapons around in strategic volumes. |
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Jonathan_S
Posts: 9030
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And the graser torp's weapon is specifically noted as being less powerful than the one a Shrike carries. It's a light cruier's graser; not a BC's (and wouldn't have the improved grav lensing that makes the latest revisions of Shrike grasers even nastier). But even with those uprated grasers an entire wing of Shrikes can't be confident of killing an SD in a single firing pass. SDs are just so much inherently tougher, with their sidewalls and meters of armor, than the fragile targets we've seen graser torps hit to date. |
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cthia
Posts: 14951
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I appreciate the interesting textev, but I think it is somewhat incompatible with what we've been discussing, if I digested the passage correctly. It says "...rapid, continuous fire..." which isn't exactly the same thing as continuous "sustained" fire. For one thing, there will not be an added element of the Doppler Effect of delivered energy. Plus, you would have to consider the elapsed time between firings, which conceivably could be a full second. Half a second would be too significant to be compatible with the experience of what a g-torp delivers. BTW, Jonathan. I apologize for the confusion upstream about the GA pushing their graser to slagging. I specifically meant what munroburton includes here. My long posts and my inundated brain often get off track, and I miss it during edits. I was responding with the shoehorned CL graser supposition you posited upstream in mind. At any rate, I think I have the answer to that question, somewhat, with this post. As is, GA weapons cannot "sustain" fire. Can anyone get Jayne to whisper in your ear about the maximum rate of fire of GA energy weapons? . Last edited by cthia on Mon Sep 20, 2021 2:28 pm, edited 2 times in total.
Son, your mother says I have to hang you. Personally I don't think this is a capital offense. But if I don't hang you, she's gonna hang me and frankly, I'm not the one in trouble. —cthia's father. Incident in ? Axiom of Common Sense |
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kzt
Posts: 11360
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The last time a wing of shrikes tried it's luck against SDs it ended 'poorly' for the shrikes. Like 2/3rds were killed and they did essentially no damage. |
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cthia
Posts: 14951
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Nether one of those Shrikes had a sustained fire, and I don't think Shrikes strike from a range as close as missiles. But consider if a Shrike could sustain fire for as long as a g-torp, and possibly concentrate that fire on one area of the sidewall. All of the combined energy of a coordinated Shrike attack is spread over the complete area of the sidewalls. Or at least a significant portion thereof. And again, there is the missing Doppler Effect. Son, your mother says I have to hang you. Personally I don't think this is a capital offense. But if I don't hang you, she's gonna hang me and frankly, I'm not the one in trouble. —cthia's father. Incident in ? Axiom of Common Sense |
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cthia
Posts: 14951
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Why isn't it a given that the g-torp can be made somewhat smaller right out of the box simply by replacing the power source with the GA's smaller reactor?
Son, your mother says I have to hang you. Personally I don't think this is a capital offense. But if I don't hang you, she's gonna hang me and frankly, I'm not the one in trouble. —cthia's father. Incident in ? Axiom of Common Sense |
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