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porky_kicker

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This is a snapshot from a DRDO technical doc on NAG

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This provides clear evidence that in NAG

1. Sustainer motor is at the rear of the missile, with the exhaust being vented through a blast tube.

2. Booster motor with 4 lateral nozzles is further up ahead of the sustainer motor.

3. Both the sustainer and the booster motors are fired simultaneously.

4. The booster motor with the 4 lateral nozzles burns out after providing the necessary acceleration , while the sustainer motor continues to run almost throughout the full flight duration.

NAG launch sequence from the latest test fire video correlated with the DRDO published info posted above

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1. Both booster and sustainer motor firing. However the exhaust exiting at the back of the launch tube is mainly from the sustainer motor which is at the rear of the NAG missile.

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2. Both booster and sustainer motor on, the exhaust plume from the sustainer motor is substantial , correspondingly the axially aligned thrust from the expanding gases from the sustainer motor, exiting out of the launcher end is enough to push the NAG missile out of the launch tube. ( Inside the launch tube the 4 lateral thrusters of the booster motor don't contribute to forward thrust because there is no space for the exhaust gas from the 4 side mounted thrusters of the booster motor to expand since the missile fits tightly inside the launch tube )

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3. The plume from the 4 lateral thrusters of the booster motor is now visible. Since the missile is out , the exhaust gas coming out from the 4 lateral thrusters of the booster motor can now expand and provide forward acceleration to the NAG missile. Simultaneously the sustainer motor continues to burn adding to the acceleration of the NAG missile.

4x.jpg


4. The plume from the 4 lateral thrusters of the booster motor is still visible , which means it is yet to run out of fuel. But at some point in the flight it will run out of fuel and shut down but not before it provides the required momentum to the missile. Meanwhile the sustainer motor continues to burn and produce thrust.

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5. Plume from the exhaust of the sustainer motor is visible which means the sustainer motor is still on and producing thrust for the terminal stage, till impact of the NAG missile on the target with considerably high velocity . Meanwhile no plume from the 4 lateral thrusters of the booster motor is visible which means the fuel of the booster motor has run out sometime ago.

And this should clear the doubts ( atleast for me )

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porky_kicker

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This is a snapshot from a DRDO technical doc on HELINA

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This provides clear evidence that in HELINA

1. Booster motor is at the rear of the missile, with the exhaust being vented through a fixed bell shaped nozzle.

2. Sustainer motor with 2 lateral nozzles is further up ahead of the booster motor.

The following pic's are from the video of test fire of HELINA missile from Rudra helicopter.

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The booster motor has fired inside the launch tube pushing the Helina missile out of the same ( note the orange colour at the rear of tube due to the plume of the missile )

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The Helina missile has exited the launch tube completely . No plume from the 2 sustainer nozzles visible ( sometimes due to the lighting conditions , small plumes are not visible , so cant comment for sure on the sustainer motor status )

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The plume from the booster motor is definitely large as its effect is visible on the launch till even after the Helina missile has traveled away from it.

Another set of pic's from another angle

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From this angle the prominent plume from the booster motor of Helina missile is again visible . But there is no visible sign of the sustainer motor firing ( note sometimes small plumes from side thrusters which travel along the surface of the missile body don't show up due to small size and lighting conditions , hence I cannot comment on the status of the sustainer motor at this point without concrete evidence )

And what happens afterwards in flight with regard to both booster and sustainer motor , I don't know for sure since information regarding same is not available , I can guess but won't, since it won't serve any purpose. Best wait for more concrete evidences from official sources.

Anyways what is confirmed is that Helina propulsion configuration is different from that of Nag.

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Karthi

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@Karthi could you give inputs on this one.
Bros this is a separate Government program for installing and Indigenousing super Computer technology.

Phase I involves assembling of the supercomputers, in Phase II, certain components like the motherboards would be manufactured in India, and in the third phase, the supercomputer would be designed in India by C-DAC. The aim is to install several TF and PF systems across various academic and research institutions .

Phase 1 completed by adding several infrastructure at various places ( actual figures don't know).6.6 PF computing power installed in phase 1??

In phase two we installed Param Shivay , Param Brahma , Param Shakthi and another 11? Are under installation , COVID delayed the installations . In these systems Various Subsystems and inbuilt microprocessors are used/ will use . Another 8 systems are installed at Various Institutions at NE . Five systems with 3 PF Indigenously designed will be operational in near future.

100 PF AI super Computer , 20 PF super Computer and a Super Computer server Rudra installed at C- DAC. Belived that Phase two will finish at April 2021.

Phase 3 will commence January 2021 , in phase 3 most of the system will be Indigenous.


All These systems are interconnected with National Knowledge Grid ?? . Don't need to worry about the Peta Terra flops things , we can upgrade these systems to various speeds whenever a need arise .

And an exa scale super Computer is under development and it made some progress ✌
 

porky_kicker

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That's jeep Cherokee,its available through import route,kinda expensive though



Found similar system mounted in others cars too

Thanks , I kind of suspected it was a foreign car , but my knowledge in cars is zero .

The device in the back of the car is a EMP device used to fry the electronics of other cars inorder to disable them .
 

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