Previous Ship Specs from 2017 and 2018
BFR Ship specifications (from 2017 IAC presentation and 17 Sep 2018 update announcing #dearMoon), a.k.a. Starship
Length: 55m (from 17 Sep 2018 presentation), up from 48 m
Diameter: 9 m
Dry mass: 85 tons
Propellant mass: 1100 tons
240 tons liquid methane
860 tons LOX
Ascent Payload: 150 tons (v2.0); 100 tons (v1.0)
Return Payload: 50 tons (to Earth)
Payload Volume: 1000m3 forward, 88m3 aft (with v1.0 engine configuration)
Engines, v1.0 (from 17 Sep 2018 presentation):
7x sea level Raptor engines
Specific impulse: 380 sec (performance improvement not explained)
Thrust: ~200 ton @ 300 bar = 1961 kN, matching previous vacuum thrust
Engines, v2.0:
2x sea level Raptor engines
Specific impulse: 356 sec (Vac)
Sea level thrust 1700kN
4x vacuum Raptor engines
Specific impulse: 375 sec (Vac)
Vacuum thrust: 1900 kN
BFR Booster specifications, a.k.a. Super Heavy
Length: 63m
Diameter: 9m
Total mass: 3,065,000 kg
Dry mass:
Propellant mass:
x liquid methane
x LOX
Total Thrust: 52,700 kN (other figures suggest 61,800 kN)
Engines
35x Sea Level Raptor Engines (increased from 31)
Specific impulse: 330s
Thrust: 69,000 kN