SpaceX Company Falcon-IX (B1) Falcon-IX (B2)  Falcon-IX Heavy
Overall
Vehicle
Operational from 04.06.2010    
  to 08.12.2010    
Orbital flights   2 0 0
Payload weight t LEO ~8.00 LEO 10.45  LEO 28.00
Gross liftoff weight t ~389 ~403 ~1,081
Gross propellant weight t 352.38 352.38 947.04
Total length m 54.87 54.87 54.87
Max. diameter (span) m      
Total liftoff thrust (s.l.) kN 4,797.0 5,004.0 10,008.6
Total impulse (vac) MN*s 1,016.4 1,053.7 2,826.9

Fairing

Total length m 10.90/13.87 10.90/13.87 13.87
Diameter m 3.60/5.18 3.60/5.18 5.18
Total weight t ~2.5 ~2.5 ~2.5
Stage 2

Name

       
  Length (+ interstage) m ~12.00 ~12.00 ~12.00
Diameter m 3.60 3.60 3.60
Liftoff weight t ~57 ~57 ~57
Propellant weight t 51.65 51.65 51.65
Engines   Merlin-I V Merlin-1V Merlin-1V
Propellant  

Kerosene /LOX

Kerosene /LOX

Kerosene /LOX

Total thrust (vac) kN 444.8 444.8 444.8
Specific impulse (vac) N*s/kg ~3040 ~3040 ~3040
Burn time s 353 353 353
Total impulse (vac) MN*s 157.0 157.0 157.0

Stage 1

Name        
  Length m ~29.00 ~29.00 ~29.00
Diameter m 3.66 3.66 3.66
Liftoff weight t 321.40 333.40 333.40
Propellant weight t 288.30 300.30 300.30
Engines   Merlin -1C (9) Merlin -1C+ (9) Merlin -1C+ (9)
Propellant  

Kerosene /LOX

Kerosene /LOX

Kerosene /LOX

Total thrust (s.l.) kN 4,797.0 5,004.3 5,541.0 (vac)
Specific impulse (s.l.) N*s/kg 2693 2697 2986 (vac)
Burn time s 174.5 174.5 174.5
Total impulse (vac) MN*s 859.4 896.7 896.7

Booster

Name       2
  Length m     ~34.00
Diameter m 3.66
Liftoff weight t ~660
Propellant weight t 593.80
Engines   Merlin -1C+ (9)
Propellant  

Kerosene /LOX

Total thrust (s.l.) kN 10,008.6
Specific impulse (s.l.) N*s/kg 2697
Burn time s 160
Total impulse (vac) MN*s 1,773.2