Author Topic: Shepherd class Escort Corvette  (Read 2989 times)

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Offline Starmantle (OP)

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Shepherd class Escort Corvette
« on: November 23, 2016, 06:38:13 PM »
This is a fun little corvette I just designed and I thought I'd share it with you all.

The Shepherd class Escort Corvette is a dependable design meant to escort low-risk assets like survey fleets alone or to add value to defense of larger convoys.  For a ship of its size, it has a wide range of capabilities and is very independent.  Its focus is on missile defense with a small quad Gauss turret for sustained fire at multiple small waves and 110 Meteor-III missiles in Active Defense Pods for single large waves, plus an anti-missile sensor able to track inbounds for 3.5m km to increase targeting chances.  Its self-defenses are minimum, just a light jamming system and strength-3 armor to defend against low caliber attacks and some innate defense that comes with its small cross-section.  It has fleet-standard speed, maintenance life and deployment time of 4 years, plus enough fuel for 4 months of continuous thrust at full power.  It can refuel from the commercial ships it's escorting if it needs more than that.  Offensively, it can launch a salvo of 22 Sparrow Mk-II mid-range missiles at 91.3m km if it has exterior sensor coverage or at 32.4m km without it.  Past that, it can launch two waves of 4 Slamhammer Light Bombs within 23.4m km and a single devastating Mk IV Nova Bomb at close range.  In a close-range attack, the Shepherd can use a mix of missiles (including the Decoy A-1) through its 6 fire controls to confuse enemy point defense.  Even after expending all of that ordinance, the Gauss turret ensures that the Shepherd isn't completely helpless.  For ground targets, the Shepherd carries a single Light Orbital Bomb.  It also carries 2 Crybaby probes with loud, 500 resolution sensors that it can fire across a system to detect large alien ships or to grab the attention of enemy forces and reveal their presence when the crybaby is intercepted.  It also carries four Watchman class sensor buoys to monitor jump points and other key locations in a system.  Because it's just 3,000 tons (which is the fleet-standard size for corvettes including all survey corvettes), the Shepherd can re-arm and overhaul at even the smallest frontier maintenance facilities or it can dock with any carrier to restock ammunition.  The Shepherd is a recent addition to the fleet, but it's likely to see extensive use in a wide range of theaters.

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Shepherd class Escort Corvette    3 000 tons     45 Crew     880.6 BP      TCS 60  TH 375  EM 0
6250 km/s     Armour 3-18     Shields 0-0     Sensors 1/1/0/0     Damage Control Rating 1     PPV 26.85
Maint Life 4.44 Years     MSP 202    AFR 65%    IFR 0.9%    1YR 17    5YR 249    Max Repair 187.5 MSP
Intended Deployment Time: 48 months    Spare Berths 0   
Magazine 161   

375 EP Magnetic Fusion Drive (1)    Power 375    Fuel Use 25.5%    Signature 375    Exp 10%
Fuel Capacity 277 500 Litres    Range 65.3 billion km   (120 days at full power)

Quad Gauss Cannon R4-17 Turret (1x20)    Range 40 000km     TS: 32000 km/s     Power 0-0     RM 4    ROF 5        1 1 1 1 0 0 0 0 0 0
Fire Control S01 30-32000 (1)    Max Range: 60 000 km   TS: 32000 km/s     83 67 50 33 17 0 0 0 0 0

Size 1 Box Launcher (18)    Missile Size 1    Hangar Reload 7.5 minutes    MF Reload 1.2 hours
Active Defense Pod (110)    Missile Size 1    Hangar Reload 7.5 minutes    MF Reload 1.2 hours
Size 1 Missile Launcher (25% Reduction) (4)    Missile Size 1    Rate of Fire 430
Size 10 Box Launcher (1)    Missile Size 10    Hangar Reload 75 minutes    MF Reload 12.5 hours
Missile Fire Control FC4-R1 (50%) (3)     Range 4.3m km    Resolution 1
Missile Fire Control FC12-R1 (2)     Range 13.0m km    Resolution 1
Missile Fire Control FC94-R120 (1)     Range 94.6m km    Resolution 120
Meteor Mk III (110)  Speed: 81 000 km/s   End: 0.5m    Range: 2.3m km   WH: 1    Size: 1    TH: 1674/1004/502
Nova Bomb Mk IV (1)  Speed: 54 000 km/s   End: 3.6m    Range: 11.6m km   WH: 81    Size: 10    TH: 666/399/199
Sparrow Mk II (22)  Speed: 40 000 km/s   End: 38m    Range: 91.3m km   WH: 7    Size: 1    TH: 333/200/100
Slamhammer Light Bomb (8 )  Speed: 66 000 km/s   End: 5.9m    Range: 23.4m km   WH: 9    Size: 1    TH: 286/171/85
L.O.B. Light Orbital Bomb (1)  Speed: 0 km/s   End: 0m    Range: 0m km   WH: 20    Size: 1    TH: 0/0/0
Crybaby Probe (2)  Speed: 10 000 km/s   End: 1.3d    Range: 1082.9m km   WH: 0    Size: 1    TH: 33/20/10
Watchman class Sensor Buoy (4)  Speed: 0 km/s   End: 0m    Range: 0m km   WH: 0    Size: 1    TH: 0/0/0
Decoy A-1 (4)  Speed: 127 500 km/s   End: 2.6m    Range: 20.3m km   WH: 1    Size: 1    TH: 680/408/204

Active Search Sensor MR1-R1 (50%) (1)     GPS 6     Range 1.4m km    MCR 157k km    Resolution 1
Active Search Sensor MR32-R1 (1)     GPS 135     Range 32.4m km    MCR 3.5m km    Resolution 1

ECM 10

Missile to hit chances are vs targets moving at 3000 km/s, 5000 km/s and 10,000 km/s

This design is classed as a Military Vessel for maintenance purposes
« Last Edit: November 23, 2016, 07:51:00 PM by Starmantle »
 

Offline ryuga81

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Re: Shepherd class Escort Corvette
« Reply #1 on: November 24, 2016, 06:57:19 AM »
Omg, rearming this thing must be a logistical nightmare! :P
 

Offline Starmantle (OP)

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Re: Shepherd class Escort Corvette
« Reply #2 on: November 24, 2016, 12:24:52 PM »
Omg, rearming this thing must be a logistical nightmare! :P

Hah.  Well if I wanted easy logistics I'd be playing Call of Duty or something.

But it all seriousness, I don't think it'll be problematic

Optimal outcome for an escort mission is not encountering the enemy.  If something goes wrong and I do need to fire, it'll be for a good reason. 

Just about any generalist collier is going to carry Meteor short-range anti-missiles, Sparrow mid-range ASMs (they're primarily used by my fighters), and Nova Bombs (used as secondary or tertiary armament on many warships).  The 5 other classes of missile that make up the standard load-out are a little less common, but they're also tiny, easy to fit in colliers, and if they're not available, oh-well - all the more room for Sparrows and Meteors.  :)
 

Offline 83athom

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Re: Shepherd class Escort Corvette
« Reply #3 on: November 24, 2016, 05:25:10 PM »
While I am all for generalist, all purpose ships, ships of this size really need to be more specialized than this. While rearming all of these isn't a much of a problem, it would be more effective to carry more of a fewer types. Remove all of the size 1 "bombs" and create a small missile similar to the Meteor but with a warhead of 2-4 (the size 10 is just fine, and you might even want a few more). Size 1 buoy sensors are pretty much useless. There is no reason to have two different sensors with the same resolution. Your turret does not have fast enough tracking. It does not have enough range to justify 4 years of deployment time, and even the speed of what it should be escorting doesn't either. It also seems a bit squishy for something at this tech. Just my 2¢.

Also, designs should be placed in code, not quotes. ([code ]EPIC DESIGN[/ code] or just hit the # button under the font options)
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Offline Starmantle (OP)

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Re: Shepherd class Escort Corvette
« Reply #4 on: November 24, 2016, 08:56:43 PM »
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While I am all for generalist, all purpose ships, ships of this size really need to be more specialized than this.

Hey, that's great if you want a whole fleet of ships to escort each of your survey fleets.  But this if you just get one escort or you want to be able to break fleet assets up and spread them out, they could benefit from being independent.

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Remove all of the size 1 "bombs" and create a small missile similar to the Meteor but with a warhead of 2-4

Why?  As you see, I already can fire a wave of 22 Sparrow missiles that are twice as strong as that.  As mentioned, that's the primary attack capability of a generally defensive ship.  The Slamhammer Bombs are available at closer range similar to that Nova Bomb and work well together.

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Size 1 buoy sensors are pretty much useless.

Why?  They're easy to research, cheap to make, and that one detects 2,500 ton ships at 2.5m km, pretty effective for monitoring jump points without putting my ships into harms way.  How's that useless, exactly?

And the other one has a range of a billion kilometers and looks fantastic as flushing out enemies.

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There is no reason to have two different sensors with the same resolution.

One is a tiny backup on costs me one tenth of an HS or 0.17% of the ship's tonnage.  That's well-worth it to prevent the ship from being rendered completely helpless by a lucky shot. 

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Your turret does not have fast enough tracking.

32,000 isn't enough tracking?  That's 4x my beam fire control, so I'm not sure what you're suggesting I do.  It doesn't get better than that until I get to a significantly better tech level and I don't see that happening soon unless you think I should put more RP into beam fire control tech than engine tech.  You might as well be complaining that it doesn't have beam core drives.  :P

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It does not have enough range to justify 4 years of deployment time, and even the speed of what it should be escorting doesn't either.

What?  As mentioned in the description, it has 4 months of fuel and can borrow more from the ships it's escorting.  Escorting survey fleets is mostly about waiting around on jump points where you're spening maintenance time and deployment time but not fuel.  I'm not sure what you meant by that 2nd part.

 

Offline ChildServices

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Re: Shepherd class Escort Corvette
« Reply #5 on: November 24, 2016, 09:20:19 PM »
One is a tiny backup on costs me one tenth of an HS or 0.17% of the ship's tonnage.  That's well-worth it to prevent the ship from being rendered completely helpless by a lucky shot.

It's probably far better for you to make one larger sensor with electronic hardening. Redundancy isn't as useful in this game as it is in real life. Redundancy in this game usually means "build more than one ship"
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Offline Starmantle (OP)

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Re: Shepherd class Escort Corvette
« Reply #6 on: November 24, 2016, 10:30:12 PM »
It's probably far better for you to make one larger sensor with electronic hardening. Redundancy isn't as useful in this game as it is in real life. Redundancy in this game usually means "build more than one ship"

I can afford a couple BP for a backup sensor.  That's an easy and wise precaution and I couldn't have really done anything else with that space but increase range by 2% or maybe add a high resolution sensor that would be much louder than 60 GPS

By contrast, building hardening into that main sensor sensor would cost thousands more in RP, would decrease maintenance life, and would make the whole design cost 7% more.  Now that might be worth it if I expect to be fighting microwave fighters, but I don't really anticipate that.  Instead, its' just a tiny, tiny 5-tons concession on a 3,000 ton ship to help it fulfill its explicit role as a fairly independent small ship. 

It seems strange to fret this much about 5 tons.
 

Offline 83athom

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Re: Shepherd class Escort Corvette
« Reply #7 on: November 25, 2016, 12:54:02 PM »
Hey, that's great if you want a whole fleet of ships to escort each of your survey fleets.  But this if you just get one escort or you want to be able to break fleet assets up and spread them out, they could benefit from being independent.
Ah, I assumed wrong in what you were escorting and how you wanted to escort them. But I also think you misunderstood me. An escort ship should be able to defend the ship it is escorting while it runs away. It is meant to swat down any missiles, fighters, and other smaller ships that are catching up to the ship being escorted. I don't use fleets of escorts using different designs, I use one design with the number of ships scaling with the size of the group being escorted. What I meant was you might want to trim the design to better fill that specific role  instead of being an all-purpose design that can fill any spot.
Why?  As you see, I already can fire a wave of 22 Sparrow missiles that are twice as strong as that.  As mentioned, that's the primary attack capability of a generally defensive ship.  The Slamhammer Bombs are available at closer range similar to that Nova Bomb and work well together.
I did not see the Sparrows, they look pretty nice. Those are the kinds of missiles I was talking about, and you should be filling you ship with those instead of the Slamhammer, LOB, Crybaby, Watchman, and A-1. There is little difference in the warhead between the Slamhammer and Sparrow to ustify the range difference.
Why?  They're easy to research, cheap to make, and that one detects 2,500 ton ships at 2.5m km, pretty effective for monitoring jump points without putting my ships into harms way.  How's that useless, exactly?
Because designing slightly larger ones that can detect 1,000 tons and smaller at 10m km+ is a lot better.
And the other one has a range of a billion kilometers and looks fantastic as flushing out enemies.
1) how is that possible? 1.5)What kind of res is it?
One is a tiny backup on costs me one tenth of an HS or 0.17% of the ship's tonnage.  That's well-worth it to prevent the ship from being rendered completely helpless by a lucky shot.
But if it had a resolution of 200 or so, then you could see very large enemies at a very long range. And if a luck shot were to hit the sensors, the engines would already be taken out and it would already be helpless. 
32,000 isn't enough tracking?  That's 4x my beam fire control, so I'm not sure what you're suggesting I do.  It doesn't get better than that until I get to a significantly better tech level and I don't see that happening soon unless you think I should put more RP into beam fire control tech than engine tech.  You might as well be complaining that it doesn't have beam core drives.  :P
You should be able to track you own missiles, that's how fast you need to keep your anti-missile turrets. You definitely did not put enough RP into BFC.
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Offline Starmantle (OP)

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Re: Shepherd class Escort Corvette
« Reply #8 on: November 25, 2016, 05:01:12 PM »
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What I meant was you might want to trim the design to better fill that specific role  instead of being an all-purpose design that can fill any spot.

It you don't believe in muti-role ships, that's fine.  But this ship fills the role you've described quite well with a mix of and is able to fill other roles with a fraction of its small hull size. 

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There is little difference in the warhead between the Slamhammer and Sparrow to justify the range difference.

Yeah, that's a fair assessment.  The Slamhammer is faster and therefore has a longer effective range if I want to fire it only within a 5 second tic to avoid most anti-missile fire.  It can therefore be paired with the Nova better.  And it has better armor penetration.  But I could trade 4 Slamhammers for 4 Sparrows, probably. 

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Because designing slightly larger ones that can detect 1,000 tons and smaller at 10m km+ is a lot better.

For the mission of providing sensor coverage on a jump point, there's little a big probe can do that a size 1 probe can't and there's no reason for my frontier escort ships to be carrying around giant probes.  For 10.4 tons of collier space, I can permanently monitor 4 jump points and see anything moving through them in either direction as an early warning system.  That sounds like a deal to me.

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1) how is that possible? 1.5)What kind of res is it?

It's res 500 to detect only huge ships but again, mostly just to distract the enemy with a loud sensor or to flush them out, get them to turn on their own active sensors or to reveal the prescence of an enemy in a sector when they destroy the probe. 

Here's the design:

Crybaby Probe
Missile Size: 1 MSP  (0.05 HS)     Warhead: 0    Armour: 0     Manoeuvre Rating: 10
Speed: 10000 km/s    Engine Endurance: 30.1 hours   Range: 1 082.9m km
Active Sensor Strength: 0.51   Sensitivity Modifier: 240%
Resolution: 500    Maximum Range vs 25000 ton object (or larger): 2 730 000 km
Cost Per Missile: 0.941
Chance to Hit: 1k km/s 100%   3k km/s 30%   5k km/s 20%   10k km/s 10%
Materials Required:    0.306x Boronide   0.51x Uridium   0.125x Gallicite   Fuel x1150
Development Cost for Project: 94RP

Interestingly, it looks possible to create a buoy with even greater resolution than 500, so I might experiment with that.

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But if it had a resolution of 200 or so, then you could see very large enemies at a very long range

If it had an identically sized backup sensor with res 200 instead of a res 1 senors, it could see 10,000 ton ships at 20m km.  But I can already see those and then I wouldn't have a backup sensor to allow me to accomplish my key role of missile defense.  It would also have a GPS of 1200 which would suddenly make this ship 9 times easier to spot with EM sensors.  Not worth it. 

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And if a luck shot were to hit the sensors, the engines would already be taken out and it would already be helpless.


The engine makes up 8% of the Damage Allocation Chart and has 8 HTK.  The primary sensor makes up 1.6% of the Damage Allocation Chart and has 1 HTK.  Whereas it's certainly possible it will lose engines before sensors, it's strange to me that you think the opposite is impossible.  5 tons is a small price to pay to hedge that possibility. 

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You should be able to track you own missiles, that's how fast you need to keep your anti-missile turrets.  You definitely did not put enough RP into BFC.

My last beam fire control tech level costed my 60,000 RP.  My last engine tech cost me 80,000 RP.  I think it's a profound waste to spend more on beam fire control than engine technology, but to each his own. 
« Last Edit: November 26, 2016, 04:24:41 PM by Starmantle »
 

Offline Jorgen_CAB

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Re: Shepherd class Escort Corvette
« Reply #9 on: November 27, 2016, 05:22:47 AM »
This ship is a really powerful little ship with many tactical possibilities.

I also don't understand the hostility on multi-purpose ships. People don't seem to understand that you always have to juggle research, industry, naval construction capacity, upgrades, logistics, resource distribution, mission priorities and all that stuff for ALL your ship designs. Missile ships in particular make truly magnificent multi-purpose ships. Missile ships can be loaded with different types of missiles based on their mission. This way your multi-purpose ship can be offensive or defensive, it's not a matter of that fire-power being fixed at a certain distribution.

If you also can distribute the different resources needed for a ship more evenly you gain an advantage in production efficiency over over specializing your fleets, especially between beam and missile weapons systems, but also on engine designs.

I also like to waste as little resources as possible on military ships, I rather spend the resources on other stuff, that includes research. Therefore engine research is way more important than sensor or weapon technology as are many other technologies.

Most of my ship designs need to do some multi purpose missions at one time or another otherwise they don't fit into the overall fleet mission. The purpose of the feet is to protect the civilian part and that means a great deal devoted to scouting, sensor deployment, escorting etc... pure combat role are secondary unless I enter into some sort of war. If war happens ships are generally designed to counter the enemy ships as I have managed to gather intelligence on them.
 

Offline Drgong

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Re: Shepherd class Escort Corvette
« Reply #10 on: January 14, 2017, 06:33:31 PM »
Agreed, I can understand the role of this ship and it could be very useful. 
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