The Long March 3 rocket family includes :
- Long March 3
- Long March 3A
- Long March 3B
- Long March 3B/E
- Long March 3C
- Long March 3C/E
and is part of the entire Long March (rocket family).
Specifications of all LM-3 types
| Series | 3 | 3A | 3B | 3B/E | 3C | 3C/E |
| Model | ||||||
| Stages | 3 | 3 | 3 (plus 4 strap-on boosters) | 3 (plus 4 strap-on boosters) | 3 (plus 2 strap-on boosters) | 3 (plus 2 strap-on boosters) |
| Length (m) | 43.2 | 52.5 | 54.8 | 56.3 | 54.8 | 56.3 |
| Max. diameter (m) | 3.35 | 3.35 | 3.35 | 3.35 | 3.35 | 3.35 |
| Liftoff mass (t) | 204 | 241 | 426 | 459 | 345 | 378 |
| Liftoff thrust (kN) | 2,962 | 2,962 | 5,923 | 5,923 | 4,442 | 4,442 |
| Payload (LEO, kg) | 5,000 | 8,500 | 11,500 | 11,500 | 8,000 | 8,000 |
Summary Launch statistics for all LM-3 types
The following launch statistics are gathered from the individual Wikipedia pages of each CZ-3x variants as those pages are updated more frequently by various editors; the numbers are current as of 28 May 2025.
| Derivatives | Status | First flight | Launches | Successes | Failures | Partial failures |
| Long March 3 | Retired | 29 January 1984 | 13 | 10 | 2 | 1 |
| Long March 3A | Retired | 8 February 1994 | 27 | 27 | 0 | 0 |
| Long March 3B | Retired | 14 February 1996 | 12 | 10 | 1 | 1 |
| Long March 3B/E | Active | 13 May 2007 | 97 | 95 | 1 | 1 |
| Long March 3C | Retired | 25 April 2008 | 12 | 12 | 0 | 0 |
| Long March 3C/E | Active | 23 October 2014 | 7 | 7 | 0 | 0 |
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