China

CZ-1A CZ-1B CZ -1C CZ -1D

Overall
Vehicle

Operational

from

 16.11.1969

10.01.1970

 

01.06.1995

 

to

 

03.03.1971

 

03.01.2002

Orbital flights

 

1 (?)

3 (?)

0

3

Payload weight

t

 LEO

~0.10

LEO

~0.50

LEO

~0.70

LEO

0.93

Gross liftoff weight

t

~78.90

81.95

82.15

81.65

Gross propellant weight

t

73.17

74.98

75.09

73.92

Total length

m

~28.50

~29.47

~29.47

28.22

Max. diameter (span)

m

 

 

 

3.81

Total liftoff thrust (s.l.)

kN

1,020

1,020

1.101

1,101

Total impulse (vac)

MN*s

192.4

196.9

199.0

197.3

Fairing

Total length (+adapter)

m

4.30

4.67

4.67

3.98

Diameter

m

 

1.50

1.50

2.05

Total weight

t

~0.30

0.40

0.40

0.40

Stage 3

Name

 

 

 

 

 

 

Length

m

 

~4.00

~4.00

1.70

Diameter

m

1.50 (0.77)

1.50 (0.77)

2.05 (0.90)

Liftoff weight (+OMS)

t

2.050

2.050

0.792 (+0.523)

Propellant weight

t

1.806

1.806

0.645

Engines

 

FG-02

FG-02

FG-36

Propellant

 

solid

solid

solid HTPB

Total thrust (vac)

kN

118.0

118.0

44.6

Specific impulse (vac)

N*s/kg

2491

2491

2834

Burn time

s

38

38

41

Total impulse (vac)

MN*s

4.5

4.5

1.83

Stage 2

Name

 

 DF-4

DF-4

DF-4A

 

 

Length (+adapter)

m

~6.00

~6.60

~6.60

6.04

Diameter

m

2.25

2.25-1.50

2.25-1.50

2.25-2.05

Liftoff weight

t

~13.50

~14.00

~14.00

~14.00

Propellant weight

t

12.38

12.38

12.38

12.38

Engines

 

YF-3

YF-3

YF-3A

YF-40 (2)

Propellant

 

UDMH/AK-27S

UDMH/AK-27S

UDMH/N2O4

UDMH/N2O4

Total thrust (vac)

kN

294.2

294.2

320.2

98.1

Specific impulse (vac)

N*s/kg

2746

2746

2814

2893

Burn time

s

115.6

115.6

108.8

365

Total impulse (vac)

MN*s

34.0

34.0

34.8

35.8

Stage 1

Name

 

DF-3

DF-3

DF-3A

DF-3A

 

Length

m

18.20

18.20

18.20

18.20

Diameter

m

2.25

2.25

2.25

2.25

Liftoff weight

t

~65.00

~65.00

~65.00

~65.00

Propellant weight

t

60.79

60.79

60.90

60.90

Engines

4

YF-2A (4)

YF-2A (4)

YF-2B (4)

YF-2B (4)

Propellant

 

UDMH/AK-27S

UDMH/AK-27S

UDMH/N2O4

UDMH/N2O4

Total thrust (s.l.)

kN

1,019.9

1,019.9

1,101.2

1,101.2

Specific impulse (s.l.)

N*s/kg

2349

2349

2378

2378

Burn time

s

140

140

131.5

131.5

Total impulse (vac)

MN*s

158.4

158.4

159.7

159.7