Japan Aerospace Exploration Agency ISAS SitemapJAXA Sitemap

TOP > Our Enterprises > Rockets > Satellite Launch Vehicles > M-3S

M-3S Satellite Launch Vehicles

M-3S Satellite Launch Vehicles

The third generation of the Mu series was M-3S rocket. It could send a 300 kg satellite into low earth orbit.

Mission by M-3S Launch Vehicle

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

    1st st. SOB 2nd st. 3rd st.
Total length m 23.801 5.794 8.895 2.501
Maximum diameter m 1.410 0.310 1.410 1.135
Weight (ig.) kg 45379.4*1 4122.4 11076.8*3 1416.0
Weight (b.o.) kg 18082.3*2 1375.7 3862.8 330.2
Propellant weight kg 27144.0 2746.7 7214.0 1085.8
Freon kg 306.3   42.0  
Hydrazine kg     28.0  
Mass ratio   2.744   2.874 4.170
Specific Impulse sec 266*5 219*4 277*5 284*5
Center of gravity (ig.) % 58.95 66.27 77.97
Center of gravity (b.o.) %        
Ix (ig.) kg.m.sec2 1839.0 305.8 18.60
Ix (b.o.) kg.m.sec2 660.0 105.2 3.30
Iy (ig.) kg.m.sec2 188106.0 3257.9 46.90
Iy (b.o.) kg.m.sec2 83111.0 1927.8 23.00
Net payload kg     145.7 SA 185.0
Gross payload kg       148.2
Nozzle expansion ratio   7.75 3.57 21.98 41.53
Nozzle exit diameter mm 1267.0 302.2 1078.3 696.0

*1:including Freon(306.3kg)
*2:including Freon(153.15kg)
*3:including Freon & H2O2
*4:in atmosphere
*5:in vacuum