02-12-2010, 11:02 PM
[quote name='Kritavarma' date='12 February 2010 - 02:11 PM' timestamp='1265963616' post='104154']
this is more or less agni V, isnt it ?[/quote]
Yes, what is now called Agni-V.
This is conservative estimate. Note that Mass Fraction of 3'rd stage is only 0.85,(for stage with composite case of this size it could be higher) also the 13 tonne second stage is today made of maraging, and its MF could be ~ 0.89 (but one can account the interstage for slightly reduced MF). Overall no body knows the mass of other non-propulsion components.
No I have not compared it with Shavit-2.
this is more or less agni V, isnt it ?[/quote]
Yes, what is now called Agni-V.
Quote: in the start-1 case, the small fourth stage had abt 2 tons propellant. maybe more. maybe that makes abig difference. Have you compared this with the israeli Shavit-2? They claim 300kg payload to leo with 143 degree inclination.....with a launch weight of 30 tons approx. westill have to catch up in payload/weight terms. still , 550 kg to 200 km leo would mean 800+ kg to a full icbm range. remember reading that the 1970s valiant project aimed for 500 kg to 8000 km...that too with a launh mass of 85 tons or so...
This is conservative estimate. Note that Mass Fraction of 3'rd stage is only 0.85,(for stage with composite case of this size it could be higher) also the 13 tonne second stage is today made of maraging, and its MF could be ~ 0.89 (but one can account the interstage for slightly reduced MF). Overall no body knows the mass of other non-propulsion components.
No I have not compared it with Shavit-2.