Indian Missile News And Discussion

[Arun_S]

[quote name='ramana' date='13 March 2010 - 07:21 AM' timestamp='1268444607' post='105143']

[url="http://www.drdo.com/pub/nl/2010/mar10.pdf"]DRDO Newsletter for March 2010[/url]





Has AIII test and other details

[/quote]



Very cool.



It has first evidence fo Agni-III SL Submarine Launched:

At present, cassette casting and pressure casting

technologies are being developed which are ideal

for large number motor processing. Technology is

also being developed to process dual-thrust grain

to meet the boost and sustain phase requirement

during flight. To process the complicated web

geometry grains, ribbon casting has been developed

and the propulsion system was used in pop-up trial

of a missile recently. [color="#0000ff"]In a space-constrained system,

high performance index (Isp X density) propellant is

being developed by increasing solid loading[/color].<img src='http://www.india-forum.com/forums/public/style_emoticons/<#EMO_DIR#>/rolleyes.gif' class='bbc_emoticon' alt='' />



[color="#0000ff"]Recently, a 26-petal geometry motor with 25 kp

viscosity was cast by bottom pressure casting at 10

atm pressure and cured at 20 atm pressure which

demonstrated 5 per cent gain in performance index.[/color]

For casting intricate geometry grain, collapsible

dissolving mandrel technology is being pursuaded.

Recently,

The former is critical for Arihant's all stages of teh compact 2 m dia missile and , where as the latter for ABM booster motors.

The strategic programme of DRDO

will require further heavy lift booster in

the coming years. In another 5 years,

there will be demands from many missile

systems for composite case (carbon/

epoxy) motors. There is a need to

develop infrastructure for the production

of composite case motors in large

numbers dia. In many strategic systems,

third stage will be added, preferably

with [color="#0000ff"]low-density[/color] energetic propellants in

composite case for the range gain

I think "low-density" is typo based obfuscation.