I've just finished designing a ship for my new Babylon 5 campaign, inspired by the Explorer class. It is intended as a very long duration survey vessel that can operate far from home. It can harvest its own fuel and support a strikegroup of up to 40,000 tons, including 32,000 military tons. As well as six 4000-ton jump-capable survey ships, it carriers an 8000-ton light troop transport, a 1000-ton AEW craft to overcome the limitations of commercial sensors, twenty energy-armed fighters, two recon shuttles that can launch drones, 60+ drones and buoys in storage and 30,000 tons of various ground force formations. I did consider adding a stabilisation module but decided that was a step too far.
I'm not sure how efficient it will be, but it was fun to design
Magellan class Explorer 500,000 tons 3,739 Crew 14,022.4 BP TCS 10,000 TH 16,000 EM 0
1600 km/s JR 3-50(C) Armour 1-561 Shields 0-0 HTK 866 Sensors 8/8/0/0 DCR 1-0 PPV 0
MSP 25,017 Max Repair 1,250 MSP
Hangar Deck Capacity 40,000 tons Troop Capacity 30,000 tons Magazine 400 / 0 Tractor Beam
Captain Control Rating 2 BRG AUX
Intended Deployment Time: 3 months Flight Crew Berths 800
Fuel Harvester: 25 modules producing 1,000,000 litres per annum
Maintenance Modules: 20 module(s) capable of supporting ships of 32,000 tons
Orpheus-5000C Jump Drive Max Ship Size 500000 tons Distance 50k km Squadron Size 3
Beigie-Bryant-400C Particle Thrust Engine (40) Power 16000 Fuel Use 2.24% Signature 400 Explosion 4%
Fuel Capacity 8,179,000 Litres Range 131.4 billion km (950 days at full power)
Refuelling Capability: 50,000 litres per hour Complete Refuel 163 hours
Theia Sensor Buoy (46) Speed: 0 km/s End: 0m Range: 0m km WH: 0 Size: 6 TH: 0 / 0 / 0
Argus Sensor Drone (20) Speed: 4,000 km/s End: 6.3d Range: 2,173.5m km WH: 0 Size: 6 TH: 400 / 800 / 1,600
Oracle-30N Active Sensor (1) GPS 1920 Range 31.5m km Resolution 120
EM-8 Passive Sensor (1) Sensitivity 8 Detect Sig Strength 1000: 22.4m km
TH-8 Passive Sensor (1) Sensitivity 8 Detect Sig Strength 1000: 22.4m km
Strike Group / Ground Forces
2x Kestrel Shuttle Speed: 3200 km/s Size: 10
20x SF-1A Starfury Fighter Speed: 10001 km/s Size: 6
1x Charon Light Troop Transport Speed: 1000 km/s Size: 160
6x Icarus Survey Ship Speed: 1750 km/s Size: 80
1x Delphi Early Warning Craft Speed: 4000 km/s Size: 20
1x Engineer Battalion
2x Geosurvey Detachment
1x Marine Battalion
2x Xenoarchaeology Detachment
Icarus class Survey Ship 4,000 tons 109 Crew 870.2 BP TCS 80 TH 140 EM 0
1750 km/s JR 3-50 Armour 1-22 Shields 0-0 HTK 28 Sensors 8/8/3/3 DCR 2-5 PPV 0
Maint Life 3.43 Years MSP 271 AFR 64% IFR 0.9% 1YR 35 5YR 526 Max Repair 100 MSP
Commander Control Rating 1 BRG
Intended Deployment Time: 24 months Morale Check Required
Orpheus-40M Jump Drive Max Ship Size 4000 tons Distance 50k km Squadron Size 3
Beigie-Bryant-140E Particle Thrust Engine (1) Power 140 Fuel Use 20.29% Signature 140 Explosion 7%
Fuel Capacity 419,000 Litres Range 92.9 billion km (614 days at full power)
Oracle-30N Active Sensor (1) GPS 1920 Range 31.5m km Resolution 120
EM-8 Passive Sensor (1) Sensitivity 8 Detect Sig Strength 1000: 22.4m km
TH-8 Passive Sensor (1) Sensitivity 8 Detect Sig Strength 1000: 22.4m km
Gravitational Survey Sensors (3) 3 Survey Points Per Hour
Geological Survey Sensors (3) 3 Survey Points Per Hour