|
Thrust data analysis of India's solid
rocket motors for PSLV, GSLV and SSLV
(mathematical analysis based on available data)
Norbert Brügge,
Germany
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PSLV & GSLV core stage motor S-138
20.21 x 2.80 m
|
 
|
|
|
Thrust SL |
Isp SL |
Thrust vac |
Isp vac |
Propellant |
Burn time |
Flow rate |
Total Imp. (vac)
|
|
MP |
kN |
sec |
Ns/kg |
MP |
kN |
sec |
Ns/kg |
(t) |
(s) |
t/s |
MN*s
|
|
S-138 |
Thrust ave |
306.2 |
3,002.6 |
237 |
2324 |
347.4 |
3.407.2 |
269 |
2638 |
128.20 |
107 |
1.2916 |
364.6 |
|
Thrust max |
435.5 |
4,270.3 |
494.2 |
4,846.9 |
1.8374 |
|
|
LVM3 booster motor S-200
21.92 x 3.20 m
|
|
|
|
Thrust SL |
Isp SL |
Thrust vac |
Isp vac |
Propellant |
Burn time |
Flow rate |
Total Imp. (vac)
|
|
MP |
kN |
sec |
Ns/kg |
MP |
kN |
sec |
Ns/kg |
(t) |
(s) |
t/s |
MN*s
|
|
S-200 |
Thrust ave |
364.9 |
3,578.2 |
227 |
2226 |
441.2 |
4,327.1 |
274.5 |
2692 |
206.74 |
129 |
2.2203 |
556.5 |
|
Thrust max |
504.0 |
4,942.5 |
609.5 |
5,976.9 |
1.6074 |
|
|
PSLV booster motors
PSOM (XL)
10.06 x 1.00 (PSOM
~13.46 x 1.00 (PSOM-XL)
|
|
|
|
Thrust SL |
Isp SL |
Thrust vac |
Isp vac |
Propellant |
Burn time |
Flow rate |
Total Imp. (vac)
|
|
MP |
kN |
sec |
Ns/kg |
MP |
kN |
sec |
Ns/kg |
(t) |
(s) |
t/s |
MN*s
|
|
PSOM |
Thrust ave |
46.4 |
455.0 |
229 |
2246 |
51.2 |
502.6 |
253 |
2481 |
8.92 |
44 |
0.2026 |
22.1 |
|
Thrust max |
58.6 |
574.7 |
64.8 |
635.0 |
0.2559 |
|
|
|
PSOM-XL |
Thrust ave |
57.5 |
564.0 |
231 |
2265 |
63.5 |
622.8 |
255 |
2501 |
12.2 |
49 |
0.2490 |
30.5 |
|
Thrust max |
65.9 |
637.2 |
71.7 |
703.5 |
0.2813 |
|
SSLV first stage motor
|
|
Thrust SL |
Isp SL |
Thrust vac |
Isp vac |
Propellant |
Burn time |
Flow rate |
Total Imp. (vac)
|
|
MP |
kN |
sec |
Ns/kg |
MP |
kN |
sec |
Ns/kg |
(t) |
(s) |
t/s |
MN*s
|
|
S-87 |
Thrust ave |
176.2 |
1,728.2 |
237 |
2324 |
200.0 |
1,961.7 |
269 |
2638 |
87 |
117 |
0.7436 |
229.5 |
|
Thrust max |
233.6 |
2,219.6 |
265.1 |
2,600.0 |
0.9856 |
|
|
PSLV
(H)PS-3 upper stage motor
3.60 x 2.00
|
|
|
|
Thrust SL |
Isp SL |
Thrust vac |
Isp vac |
Propellant |
Burn time |
Flow rate |
Total Imp. (vac)
|
|
MP |
kN |
sec |
Ns/kg |
MP |
kN |
sec |
Ns/kg |
(t) |
(s) |
t/s |
MN*s
|
|
PS-3 |
Thrust ave |
- |
- |
- |
- |
18.6 |
182.4 |
269 |
2638 |
7.6 |
110 |
0.0691 |
20.0 |
|
Thrust max |
- |
- |
24.5 |
240.0 |
0.0910 |
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| SSLV second stage motor |
|
|
Thrust SL |
Isp SL |
Thrust vac |
Isp vac |
Propellant |
Burn time |
Flow rate |
Total Imp. (vac)
|
|
MP |
kN |
sec |
Ns/kg |
MP |
kN |
sec |
Ns/kg |
(t) |
(s) |
t/s |
MN*s
|
|
SS-2 |
Thrust ave |
- |
- |
- |
- |
18.6 |
182.4 |
280 |
2746 |
7.7 |
116 |
0.0664 |
21.1 |
|
Thrust max |
- |
- |
25.5 |
250 |
0.0910 |
|
|