Old GSlv is a jugaard rocket . Its a PSLV with 4 strap on Vikas and a cryogenic upper stage . This solid rocket motor burns out 30 seconds before the vikas engins burn out . This means that the 4 Vikas are carrying a dead weight for 30 seconds .so what is difference between mark3 and old gsv ??????
we have only once tested cryo engine ISRO must test with others to know sure that indigenous cryo engine is reliable horse
The S200 solid rocket motors with TVC are a significant achievement . The main weakpoint of this vehicle is the hypergolic fueled L110 stage which is extremely weak compared to most other launchers.
The other part of the GSLV is the 200KN cryogenic engine which will only be ready in 2 years . This is a very efficient stage .... But it needs to be perfected 1st .
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On a side why hasn't ISRO tried to cluster 2 CE 7.5s together . I mean there are so many upper stages with such a configuration (Centuar for example)
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