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