LM-3C
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History
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
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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) |
YF-75 |
| Engine Thrust (KN) |
740.4x2 |
2961.6 |
742 (Main)
11.8x4 (Vernier) |
78.5x2 |
Engine Specific Impulse
(N��Sec/kg) |
2556.2 |
2556.2 |
2922.57 (Main)
2910.5 (Vernier) |
4312 |
| 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 |
