Table III. Lunar cargo mission—nuclear electric propulsion (NEP) Lunar delivery (cargo)—NEP Orbital sequential weights/performance Status date: Jan 27, 1989 Lunar transit stage-NEP Isp (sec): MPS: 8160.0 RCS: 220.0 B/O Rate (kg/day): 0.0 Reserves (%): MPS: 2 RCS: 10 Lunar cargo: 48 000 Stage: 87 500 Sequential wt Delta V Time MPS fluids RCS -------------------- Mission event MPS RCS day boiloff Nominal fluids Other kg lb Leo departure 160512 353 866 MPS lunar transit 8000 0 200.0 0.0 -15271 0 -15 271 33 666 Separate cargo vehicle 0 0 0.0 0.0 0 0 -48000 -48 000 -105 821 Start earth return 97 242 214380 MPS earth transit 8000 0 200.0 0.0 9251 0 -9251 -20 395 MPS reserves 0 0 0 0 -490 -490 -1081 RCS reserves 0 0 0 0 0 0 0 End of mission, excluding reserves 87 500 192 903 Total delta weight 16 000 0 400.0 0 0.0 -24 522 0 -48 490 Fluid reserves 490 0 Total usable fluid weight—kg | -25012 | 1 0 | Total usable fluid weight—lb 1 -55141 | | 0 |
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