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The development of LM-3C is on the basis of LM-3A launch vehicle and starts simultaneously with LM-3B. The same module design is adopted on LM-3C as LM-3A and LM-3B. Inheriting the successful experiences of LM-3A and LM-3B, LM-3C will have the perfect adaptability and reliability. It is mainly used for launching spacecraft for GTO mission.


LM-3C Structure

1. Payload Faring
2. Payload
3. Payload Adapter
4. Vehicle Equipment Bay
5. LH2 Tank
6. LOX Tank
7. Inter-stage Section
8. Third Stage Engine
9. Oxidizer Tank
10. Inter-tank Section
11. Fuel Tank
12. Second Stage Vernier Engine
13. Second Stage Engine
14. Inter-stage Truss
15. Oxidizer Tank
16. Fuel Tank
17. First Stage Engine
18. Strap-on Booster Cone
19. Strap-on Booster Oxidizer Tank
20. Strap-on Booster Fuel Tank
21. Strap-on Booster Engine

Technical Data

LM-3C is a three-stage launch vehicle, which takes the mature LM-3A as the core stage with 2 strap-on boosters. The only difference between LM-3C and LM-3B is the number of the strap-on boosters. Its standard GTO capacity reaches 3800kg.

Stage Booster 1st Stage 2nd Stage 3rd Stage
Stage Diameter (m) 2.25 3.35 3.35 3.00
Stage Length (m) 15.326 23.272 9.943 12.375
Mass of Propellants (t) 37.746x2 171.775 49.605 18.193
Propellant N2O4/UDMH LOX/LH2
Engine YF-25 YF-21C YF-24E
YF-22E (Main)
YF-23C (Vernier)
Engine Thrust (KN) 740.4x2 2961.6 742 (Main)
11.8x4 (Vernier)
Engine Specific Impulse
2556.2 2556.2 2922.57 (Main)
2910.5 (Vernier)
Booster 2
Lift-off Mass (t) 345
Overall Length (m) 54.838 (55.638)
Fairing Diameter (m) 4.00/4.20
Fairing Length (m) 9.56 (9.777)
GTO Launch Capacity (kg) 3800