The second generation was the three-stage M-3C. The second and third stages were newly developed and equipped with SITVC (Secondary Injection Thrust Vector Control) and side jet systems, both of which improved the accuracy of orbital injection. It could send a 195 kg satellite into low earth orbit.
Mission by M-3C Launch Vehicle
| Launch Date | Mission |
|---|---|
| 1979.2.21 | X-ray Astronomy HAKUCHO |
| 1975.2.24 | Upper Atmosphere Observation TAIYO |
| 1974.2.16 | Test Satellite TANSEI-2 |