Current Upkeep for the R.S.S. fleet (per month)

Zephyr: 174,900
Revenant and Thunderstorm: 159,350
Covenant and Shadestrike: 47,200
Storm, Warrior, Infinity, Fury, Dragon, and Sunstrike: 71,250
Milano: 6,950
Aphelion, Halo, Avenger, Genesis, Scimitar, Dart, Comet, and Shadow: 25,600
Yellowjacket: 3,550