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Shanghai Academy of Spaceflight Technology
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Detail

LM-4B/4C

basic information
Product description

Long March 4B/4C Launch Vehicle (LM-4B/4C) is three-stage storable liquid propellant launch vehicles with 47m in length and 3.35m in diameter. It is mainly used for SSO, LEO and highly elliptic orbit satellite missions. LM-4B was successfully launched for the first time on May 10th, 1999. LM-4C was successfully launched for the first time on April 27th, 2006.

 

 

1 Payload Fairing

2 Satellite(s)

3 Payload Support Bay

4 3rd Stage Common Base Tank

5 3rd Stage Engines

6 Inter-stage Structure

7 2nd Stage Tank (Oxidizer)

8 Inter-tank Structure

9 2nd Stage Tank (Fuel)

10 2nd Stage Vernier Engines

11 2nd Stage Main Engine

12. Inter-stage Structure

13 1st Stage Tank (Oxidizer)

14 Inter-tank Structure

15 1st Stage Tank (Fuel)

16 Backward Transition Section

17 Tail Section

18 Stabilizing Fin

19 1st Stage Engine

LM-4B/4C Configuration

 

Besides single payload missions, LM-4B/4C can also perform multiple-satellite missions and piggyback missions. LM-4B can deliver a 2200kg payload into 700km SSO. LM-4C can deliver a 2800kg payload into 700km SSO.

The standard payload adapter interfaces that LM-4B/4C adopts are Φ660, Φ937, Φ1194, Φ1664 and Φ2000, and LM-4B/4C can also provide Φ300 and SPOD interfaces for piggyback missions.

 

 

Payload Fairings and Adapaters

 

 

2 SCs Configuration(A) 

2 SCs Configuration(B) 

3 SCs Configuration 

 

Multiple-satellite Mission Configuration

Main Characters

Parameter

LM-4B/4C

Length (m)

46.95

Lift- off Mass (t)

250

Lift- off Thrust (kN)

2961.6

Propellant

UDMH & N2O4

PLF Diameter (m)

4.0 / 3.8 / 3.35 / 2.9

Third Stage Diameter (m)

2.9

Second Stage Diameter (m)

3.35

First Stage Diameter (m)

3.35

Mission Oribt

SSO / LEO

Payload Capacity (kg) (600km SSO)
(600km SSO)

2910(LM-4B)/3200(LM-4C)

 

The injection accuracy ( 3σ) of typical mission is as follows:

- Semi-major axis deviation(△a): ±5km

- Orbit eccentricity deviation(△e): ±0.003

- Inclination deviation(△i): ±0.08°

- Lead time T0 + 15 months

        T0 + 6 months for piggybacka

 

Record of launch vehicle CZ-4B

NO.

Launch Vehicle

Time

Satellites

Orbit

1

CZ-4B_Y2

1999-5-10

FengYun No.1 meteorological satellite/Practice satellite No.5

SSO

2

CZ-4B_Y1

1999-10-14

Resource No.1 Satellite

SSO

3

CZ-4B_Y3

2000-9-1

Resource Satellite No.2-01

SSO

4

CZ-4B_Y5

2002-5-15

FengYun No.1 meteorological satellite

SSO

5

CZ-4B_Y6

2002-10-27

Resource Satellite No.2-012

SSO

6

CZ-4B_Y4

2003-10-21

Resource No.1 Satellite

SSO

7

CZ-4B_Y7

2004-9-9

Practice No.6-01 Double-Satellite

SSO

8

CZ-4B_Y11

2004-11-6

Resource Satellite No.2-03

SSO

9

CZ-4B_Y16

2006-10-24

Practice No.6-02 Double-Satellite

SSO

10

CZ-4B_Y17

2007-9-19

Resource Satellite No.1-02B

SSO

11

CZ-4B_Y22

2008-10-25

Practice No.6-03 Double-Satellite

SSO

12

CZ-4B_Y20

2008-12-15

remote sensing satellite No.5

SSO

13

CZ-4B_Y23

2010-10-6

Practice No.6-04 Double-Satellite

SSO

14

CZ-4B_Y14

2011-8-16

Ocean exploration satellite

SSO

15

CZ-4B_Y21

2011-11-9

remote sensing satellite No.12

SSO

16

CZ-4B_Y15

2011-12-22

Resource satellite No.1-02C

SSO

17

CZ-4B_Y26

2012-1-9

Resource satellite No.3, Luxemburg satellite

SSO

18

CZ-4B_Y12

2012-5-10

remote sensing satellite No.14

SSO

19

CZ-4B_Y25

2013-10-25

Prictice satellite No.16

LEO

20

CZ-4B_Y10

2013-12-9

Resource Satellite No.1-03

SSO

21

CZ-4B_Y27

2014-8-19

Gaofen No.2 satellite

SSO

22

CZ-4B_Y28

2014-9-8

remote sensing satellite No.21

SSO

23

CZ-4B_Y32

2014-12-7

Resource Satellite No.1-04

SSO

24

CZ-4B_Y29

2014-12-27

remote sensing satellite No.26

SSO

25

CZ-4B_Y30

2015-6-26

Gaofen No.8 satellite

SSO

26

CZ-4B_Y24

2015-11-8

remote sensing satellite No.28

SSO

27

CZ-4B_Y33

2016-5-30

Resource Satellite No.3-02

SSO

28

CZ-4B_Y35

2016-6-29

Prictice satellite No.16-02

LEO

29

CZ-4B_Y31

2017-6-15

HXMT satellite

LEO

 

Record of launch vehicle CZ-4C

 

NO.

Launch Vehicle

Time

Satellite

Orbit

1

CZ-4C_Y1

2006-4-27

remote sensing satellite No.1

SSO

2

CZ-4C_Y3

2007-11-12

remote sensing satellite No.3

SSO

3

CZ-4C_Y2

2008-5-27

FengYun meteorological satellite  No.3-01

SSO

4

CZ-4C_Y4

2009-12-15

remote sensing satellite No.8

SSO

5

CZ-4C_Y5

2010-3-5

remote sensing satellite No.9

CIO

6

CZ-4C_Y6

2010-8-10

remote sensing satellite No.10

SSO

7

CZ-4C_Y7

2010-11-5

FengYun meteorological satellite  No.3-02

SSO

8

CZ-4C_Y10

2012-5-29

remote sensing satellite No.15

SSO

9

CZ-4C_Y9

2012-11-25

remote sensing satellite No.16

CIO

10

CZ-4C_Y11

2013-7-20

Innovation satellite No.3/Experimental satellite No.7/Practice satellite No.15

SSO

11

CZ-4C_Y13

2013-9-2

remote sensing satellite No.17

CIO

12

CZ-4C_Y12

2013-9-23

FengYun meteorological satellite  No.3-03

SSO

13

CZ-4C_Y14

2013-11-20

remote sensing satellite No.19

SSO

14

CZ-4C_Y15

2014-8-9

remote sensing satellite No.20

CIO

15

CZ-4C_Y16

2014-10-20

remote sensing satellite No.22

SSO

16

CZ-4C_Y17

2014-12-11

remote sensing satellite No.25

CIO

17

CZ-4C_Y18

2015-8-27

remote sensing satellite No.27

SSO

18

CZ-4C_Y8

2015-11-27

remote sensing satellite No.29

SSO

19

CZ-4C_Y19

2016-8-10

Gaofen No.3 satellite

SSO

20

CZ-4C_Y22

2016-9-1

Gaofen No.10 satellite

SSO

21

CZ-4C_Y21

2017-11-15

FengYun meteorological satellite  No.3-04

SSO