Earth Return Vehicle Reference Version 3.0

Habitat Element: 26,581 kg
Life Support System: 4,661 kg
Crew Accomm. + Consumables: 12,058 kg
EVA equipment: 243 kg
Comm/info management: 320 kg
30 kw PVA power system: 3,249 kg
Thermal Control system: 550 kg
Structure: 5,500 kg
Science equipment: 600 kg
Spares: 1,924 kg
SUBTOTAL: 29,105 kg

Excess consumables: -7,392 kg
ERV MASS AT TEl: 27,042 kg

TEl stage dry mass: 4,806 kg
Propellant mass : 28,866 kg
Earth return RCS propellant: 1,115 kg
Aerobrake: 10,180 kg
TOTAL TEI MASS : 61,829 kg

TOTAL MOI MASS : 74,072 kg

NTR Propulsion System: 23,400 kg
TMI Propellant : 50,000 kg
TOTAL INITIAL MASS: 147,472 kg