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M-3C Satellite Launch Vehicles

M-3C Satellite Launch Vehicles

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

The vehicle M-3C-1 is described as follows

    1st st. SOB 2nd st. 3rd st.
Total length m 20.241 5.794 8.395(7.279) 2.326
Maximum diameter m 1.410 0.310 1.410 1.144
Weight (ig.) kg 37445 4063 11144 1311
Weight (b.o.) kg 16983 1357 3918 235.6
Propellant weight kg 20453 2699 7174 1075
Freon kg     173  
H2O2 kg     55  
Mass ratio   2.205   2.812 5.565
Specific impulse sec 222.8 219.0 273.0 283.0
Center of gravity (ig.) % 58.54   61.70 57.95
Center of gravity (b.o.) % 41.85   54.31 51.12
Ix (ig.) kg.m.sec2 1585   305.3 17.87
Ix (b.o.) kg.m.sec2 639.8   112.3 2.675
Iy (ig.) kg.m.sec2 105717   2960 23.99
Iy (b.o.) kg.m.sec2 48690   1848 10.82
Net payload kg     104.2 65.7(SA 56.2)
Gross payload kg     212.6 70.39
Nozzle expansion ratio   5.94 3.56 21.80 43.11
Nozzle exit diameter mm 1048 302 1074 696