[quote name='Austin' date='10 March 2010 - 07:53 AM' timestamp='1268187343' post='105018']
Arun since they are replacing the liquid first stage of PAD with a solid booster and its 1 m longer
1 ) Will it have the same kind of control surfaces clipped wings etc as the current liquid fuel PAD will have , or will it use flex nozzle to give it quicker/better maneuverability and eliminate those dragy wings ?[/quote]
Prithvi core in the PAD required the basic confign including those mid-body clipped delta wings. PDV with solid booster will instead have back set fins for low altitude maneuvering (like Shourya). I do not think PAD booster require too much maneuvering, it is essentially needs to deliver the second stage high up in atmosphere, thus its flight vector is almost straight. Compare that to AAD that requires flex nozzle because it is single stage rocket with endo-atmospheric engagement.
PDV solid booster will be specially designed for highest possible acceleration. I anticipate its booster diameter to remain substantially unchanged (viz 0.9 to 1.2 meter), and will use composite case or maraging steel (the latter being more likely).
Arun since they are replacing the liquid first stage of PAD with a solid booster and its 1 m longer
1 ) Will it have the same kind of control surfaces clipped wings etc as the current liquid fuel PAD will have , or will it use flex nozzle to give it quicker/better maneuverability and eliminate those dragy wings ?[/quote]
Prithvi core in the PAD required the basic confign including those mid-body clipped delta wings. PDV with solid booster will instead have back set fins for low altitude maneuvering (like Shourya). I do not think PAD booster require too much maneuvering, it is essentially needs to deliver the second stage high up in atmosphere, thus its flight vector is almost straight. Compare that to AAD that requires flex nozzle because it is single stage rocket with endo-atmospheric engagement.
Quote:2 ) Will the solid stage have the same diameter considering length has increased by 1 m ?
PDV solid booster will be specially designed for highest possible acceleration. I anticipate its booster diameter to remain substantially unchanged (viz 0.9 to 1.2 meter), and will use composite case or maraging steel (the latter being more likely).