Beam Point Defence

[coco146 (OP)]

I have been toying around with the idea of trying to build a point defense ship armed with Gauss cannon turrets, and I wasn't sure if I should go for pure Gauss or mixed, so these are the results:

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Black Prince class Destroyer Escort    10 000 tons     208 Crew     2245 BP      TCS 200  TH 800  EM 0
4000 km/s     Armour 10-41     Shields 0-0     Sensors 1/1/0/0     Damage Control Rating 3     PPV 62.24
Maint Life 1.05 Years     MSP 421    AFR 266%    IFR 3.7%    1YR 384    5YR 5755    Max Repair 200 MSP
Intended Deployment Time: 3 months    Spare Berths 0   

400 EP Magneto-plasma Drive (2)    Power 400    Fuel Use 45%    Signature 400    Exp 10%
Fuel Capacity 750 000 Litres    Range 30.0 billion km   (86 days at full power)

Twin Gauss Cannon R3-100 Turret (4x8)    Range 30 000km     TS: 25000 km/s     Power 0-0     RM 3    ROF 5        1 1 1 0 0 0 0 0 0 0
Fire Control S04 48-25000 (4)    Max Range: 96 000 km   TS: 25000 km/s     90 79 69 58 48 38 27 17 6 0

Active Search Sensor MR4-R1 (1)     GPS 56     Range 4.5m km    Resolution 1

ECM 10

This design is classed as a Military Vessel for maintenance purposes

and the mixed vessel :

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Invincible class Destroyer    10 000 tons     223 Crew     1949.4 BP      TCS 200  TH 800  EM 0
4000 km/s     Armour 6-41     Shields 0-0     Sensors 12/1/0/0     Damage Control Rating 3     PPV 35.56
Maint Life 1.01 Years     MSP 366    AFR 266%    IFR 3.7%    1YR 360    5YR 5399    Max Repair 200 MSP
Intended Deployment Time: 3 months    Spare Berths 2   
Magazine 680   

400 EP Magneto-plasma Drive (2)    Power 400    Fuel Use 45%    Signature 400    Exp 10%
Fuel Capacity 750 000 Litres    Range 30.0 billion km   (86 days at full power)

Twin Gauss Cannon R3-100 Turret (1x8)    Range 30 000km     TS: 25000 km/s     Power 0-0     RM 3    ROF 5        1 1 1 0 0 0 0 0 0 0
Fire Control S04 48-25000 (1)    Max Range: 96 000 km   TS: 25000 km/s     90 79 69 58 48 38 27 17 6 0

Size 1 Missile Launcher (20)    Missile Size 1    Rate of Fire 10
Missile Fire Control FC20-R1 (4)     Range 20.2m km    Resolution 1
Minerva Constructs AMM-2 (680)  Speed: 48 000 km/s   End: 1.3m    Range: 3.8m km   WH: 1    Size: 1    TH: 256/153/76

Active Search Sensor MR44-R100 (1)     GPS 5600     Range 44.8m km    Resolution 100
Active Search Sensor MR4-R1 (1)     GPS 56     Range 4.5m km    Resolution 1
Thermal Sensor TH2-12 (2)     Sensitivity 12     Detect Sig Strength 1000:  12m km

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

What one would be best?

[Hawkeye]

Personally, on a ship that size, I´d go for the mixed design, though I´d increase the number of turrets to two and reduce the number of AMM tubes and magazines a bit.

The question isn´t so much if you want beam or missile PD capability (you want both) but if you want to put both of it on a single ship or not.


Note: If possible, improve the to-hit chance of your AMMs. 76% vs. a 10.000km/s target isn´t all that impressive.

[metalax]

As Hawkeye said you will want both capabilities and just need to decide if you want to combine them on a single ship or not. I tend to prefer using specialized ships as you can then adjust the proportion of gauss to amm defence as the situation requires.

You will want to increase the range of your res 1 active sensor on your amm ship, it is fine for the gauss cannons but you want to be able to see incoming missiles from far enough away to be able to launch multiple salvoes of amm's if necessary(Unless of course this is going to be acting as part of a fleet with a dedicated sensor ship, in which case your current sensor is fine as a backup).

Instead of using full size cannons to make your turrets consider using size 4 cannon. Crew training will make up for the reduction in accuracy and you will be able to fit more turrets onto the design. Similarly consider using 50% range multiplier on the fire-controls as you don't really need that range for your cannons.

[coco146 (OP)]

Ok, With those suggestions I have edited the Invincible:

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Invincible class Destroyer    10,000 tons     221 Crew     1888.2 BP      TCS 200  TH 800  EM 0
4000 km/s     Armour 7-41     Shields 0-0     Sensors 12/1/0/0     Damage Control Rating 3     PPV 46.12
Maint Life 1.12 Years     MSP 354    AFR 266%    IFR 3.7%    1YR 287    5YR 4298    Max Repair 200 MSP
Intended Deployment Time: 6 months    Spare Berths 1   
Magazine 495   

400 EP Magneto-plasma Drive (2)    Power 400    Fuel Use 45%    Signature 400    Exp 10%
Fuel Capacity 750,000 Litres    Range 30.0 billion km   (86 days at full power)

Twin Gauss Cannon R3-100 Turret (2x8)    Range 30,000km     TS: 25000 km/s     Power 0-0     RM 3    ROF 5        1 1 1 0 0 0 0 0 0 0
Fire Control S02 24-25000 (2)    Max Range: 48,000 km   TS: 25000 km/s     79 58 38 17 0 0 0 0 0 0

Size 1 Missile Launcher (15)    Missile Size 1    Rate of Fire 10
Missile Fire Control FC20-R1 (3)     Range 20.2m km    Resolution 1
Minerva Constructs AMM-2 (495)  Speed: 48,000 km/s   End: 1.3m    Range: 3.8m km   WH: 1    Size: 1    TH: 256/153/76

Active Search Sensor MR4-R1 (1)     GPS 56     Range 4.5m km    Resolution 1
Thermal Sensor TH2-12 (1)     Sensitivity 12     Detect Sig Strength 1000:  12m km

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


I was planning on making my Jump destroyer a dedicated sensor platform, so that is cool.