Refueling Options. Can we get a tankers start with 10% fuel and unload 90% fuel option. Some partial refuel orders would also help, though that can be accomplished by running short time intervals. I still cant figure out a good way to have a tanker leave a planet, move to a sorium harvester, refuel (that works) then unload at a planet.
Here's a working design : Helios class Sorium Harverster 39 791 tons 190 Crew 662.8 BP TCS 796 TH 128 EM 0
160 km/s Armour 1-103 Shields 0-0 HTK 86 Sensors 0/0/0/0 DCR 1 PPV 0
MSP 10 Max Repair 32.000 MSP
Captain (JG) Control Rating 1 BRG
Intended Deployment Time: 3 months
Fuel Harvester: 14 modules producing 784 000 litres per annum
Commercial Improved Nuclear Thermal Engine EP128.00 (1) Power 128.0 Fuel Use 7.07% Signature 128.00 Explosion 5%
Fuel Capacity 1 050 000 Litres Range 66.8 billion km (4833 days at full power)
Refuelling Capability: 50 000 litres per hour Complete Refuel 21 hours
This design is classed as a Commercial Vessel for maintenance purposes
And tanker :
Hephaestus class Tanker 19 549 tons 110 Crew 561.6 BP TCS 391 TH 1 280 EM 0
3273 km/s Armour 1-64 Shields 0-0 HTK 41 Sensors 0/0/0/0 DCR 1 PPV 0
MSP 17 Max Repair 80.00 MSP
Captain (JG) Control Rating 1 BRG
Intended Deployment Time: 3 months
Commercial Magneto-plasma Drive EP320.0 (4) Power 1280.0 Fuel Use 4.42% Signature 320.0 Explosion 5%
Fuel Capacity 10 250 000 Litres Range 2 135 billion km (7549 days at full power)
Refuelling Capability: 50 000 litres per hour Complete Refuel 205 hours
This design is classed as a Commercial Vessel for maintenance purposes
Don't forget to check tanker for both, and to put a reasonnable number for minimum fuel (miscelanous tab)