NASDA----->JAXA
Mitsubishi Heavy Industries		 H-IIA 2020 H-IIA 2022 H-IIA 2024 H-IIA 2040
Overall
Vehicle		 Operational from  29.08.2001 26.02.2005 04.02.2002 16.12.2006

 

 to 12.12.2011 14.09.2007 23.02.2008  
Orbital flights   9 3 7 1
Payload weight t GTO 4.10 GTO 4.50 GTO 5.00 GTO 5.80
Gross liftoff weight t 289.60 320.00 350.30 442.50
Gross propellant weight t 246.68 272.90 299.12 376.76
Total length m 52.60 52.60 55.10 55.10
Max. diameter (span) m        
Total liftoff thrust (s.l.) kN 4,155.5 4,913.1 4,913.1 6,914.8
Total impulse (vac) MN*s 851.1 920.9 988.9 1,220.3

Fairing

 Total length m 12.00 12.00 14.50 12.00
Diameter m 4.07 5.10 4.07 5.10
Total weight t 1.40 1.72 1.85 1.72
Stage 2 Name   Mitsubishi Mitsubishi Mitsubishi Mitsubishi
  Length m 3.40 (9.20) 3.40 (10.70) 3.40 (10.70) 3.40 (10.70)
Diameter m 4.07 4.07 4.07 4.07
Liftoff weight t 19.60 19.60 19.60 19.60
Propellant weight t 16.60 16.60 16.60 16.60
Engines   LE-5B LE-5B LE-5B LE-5B
Propellant   LH2/LOX LH2/LOX LH2/LOX LH2/LOX
Total thrust (vac) kN 136.5 136.5 136.5 136.5
Specific impulse (vac) N*s/kg 4384 4384 4384 4384
Burn time s 534 534 534 534
Total impulse (vac) MN*s 72.8 72.8 72.8 72.8
Stage 1

Name

   Mitsubishi Mitsubishi Mitsubishi Mitsubishi
  Length (+interstage) m 37.20 37.20 37.20 37.20
Diameter m 4.07 4.07 4.07 4.07
Liftoff weight t 113.60 113.60 113.60 113.60
Propellant weight t 100.00 100.00 100.00 100.00
Engines   LE-7A LE-7A LE-7A LE-7A (l.n.)
Propellant   LH2/LOX LH2/LOX LH2/LOX LH2/LOX
Total thrust (s.l.) kN 814.9 814.9 814.9 840.4
Specific impulse (s.l.) N*s/kg 3196 3196 3196 3316
Burn time s 391.1 392.1 392.1 394.5
Total impulse (vac) MN*s 421.1 421.1 421.1 433.1

Booster

 Name   2 Nissan 2 Nissan 2 Nissan 4 Nissan
  Length m 15.20 15.20 15.20 15.20
Diameter m 2.50 2.50 2.50 2.50
Liftoff weight t 150.88 150.88 150.88 301.76
Propellant weight t 130.08 130.08 130.08 260.16
Engines   SRB-A SRB-A SRB-A SRB-A
Propellant   solid HTPB solid HTPB solid HTPB solid HTPB
Total thrust (s.l.) kN 3,340.6 (av.) 3,037.2 (av.) 3,037.2 (av.) 6,074.4 (av.)
Specific impulse (s.l.) N*s/kg 2568 2568 2568 2568
Burn time s 100 110 110 110
Total impulse (vac) MN*s 357.2 357.2 357.2 714.4

Booster

 Name     2 SSB 2+2  SSB  
  Length m   14.93 (13.50) 14.93 (13.50)  
Diameter m 1.02 1.02
Liftoff weight t 29.69 59.38
Propellant weight t 26.22 52.44
Engines   Castor IVAXL Castor IVAXL
Propellant   solid HTPB solid HTPB
Total thrust (s.l.) kN 1,061.0 2,122.0
Specific impulse (s.l.) N*s/kg 2342 2342
Burn time s 57.9 57.9
Total impulse (vac) MN*s 68.9 137.8