Arihant Class Nuclear Ballistic Missile Submarines (6 Viewers)

[Muzh]

So what could be the speed mid course and re-entry phase? Are there any calculators or simulators to find this out? Ik there are equations.

This is just tip of the tip of the iceberg.

To calculate the final velocity, we can use this formula:
V = v + gt
where V is final velocity, v is initial velocity, g is acceleration due to gravity and t is time of the entire flight.

I am assuming the Wion report was talking about the velocity at the burnout. So this means K6 will have the velocity of 7.5mach when the engines are cut-off aka burnout.

We have all the data to solve for V except t. I do not know what the t will be. Alternately, I think, there is way to calculate the final velocity using h (height) but I cannot seem to remember the equation at the moment.

 

[randombully]

This is just tip of the tip of the iceberg.

To calculate the final velocity, we can use this formula:
V = v + gt
where V is final velocity, v is initial velocity, g is acceleration due to gravity and t is time of the entire flight.

I am assuming the Wion report was talking about the velocity at the burnout. So this means K6 will have the velocity of 7.5mach when the engines are cut-off aka burnout.

We have all the data to solve for V except t. I do not know what the t will be. Alternately, I think, there is way to calculate the final velocity using h (height) but I cannot seem to remember the equation at the moment.

All this complexity( though quite simiplified calculation ironically).
This thing will basically be naval equivalent to Agni 5/6.
So just look at the specs of agni5/6.

 

[Muzh]

I think mach numbers are wrong I made a mistake.

It happens. Once I wrote a post about BM terminal phase and forgot to note that rocket engines are cut-off way before terminal phase

 

[Muzh]

All this complexity( though quite simiplified calculation ironically).
This thing will basically be naval equivalent to Agni 5/6.
So just look at the specs of agni5/6.

I think so. I think K series missiles are same as Agni series. K stands for Kalam. Dr Kalam played an important role in the development of Agni missiles. So K designation for submarine launched ballistic missiles is in his honor.

 

[randombully]

I think so. I think K series missiles are same as Agni series. K stands for Kalam. Dr Kalam played an important role in the development of Agni missiles. So K designation for submarine launched ballistic missiles is in his honor.

No.
I Said equivalent in performance.
K15 Sagarika is different from any Agni series missiles.
K4 is also different.

Even Agni series missiles are different from each other to an extent you can put them in seprate series/classification.

They are all solid rocket powered, and are used for nuke delivery, that's the only similarity.

 

[Muzh]

No.
I Said equivalent in performance.
K15 Sagarika is different from any Agni series missiles.
K4 is also different.

Even Agni series missiles are different from each other to an extent you can put them in seprate series/classification.

They are all solid rocket powered, and are used for nuke delivery, that's the only similarity.

Thank you! I looked up the final velocity for Agni-VI. It is quite impressive: almost 30000KM/H.

 

[randombully]

Thank you! I looked up the final velocity for Agni-VI. It is quite impressive: almost 30000KM/H.

More actually, near 40k km/h, ~mach32.

 

[Muzh]

SLBM is your backup. It cannot be your main stay of nuclear deterrence. France can afford to do that by relying solely on SLBM because well they are part of NATO. Which country is foolish to attack another NATO country that too a powerful country like France with a nuke tipped ICBM?

India does not have the same luxury. We need to have back up for a back up in every scenario. Imagine we didn't have multi layered air defense system and instead relied only on S400 in Operation Sindoor? That would not be efficient use of our resources. We need land, air and sea based deterrence.

Also, without SSBNs you cannot have triad. Triad is an important aspect of nuclear deterrence. SLBMs provide bigger unpredictability factor than ICBMs and hence make your deterrence more potent.

 

[Muzh]

I think there should be one more similar base on the other side of the Indian peninsula opening into Arabian Sea. What is your thought?

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Built as part of the classified Project Varsha, the Rambilli facility includes a network of underground pens and tunnels designed to discreetly house India’s growing fleet of nuclear-powered ballistic missile submarines (SSBNs). This means these vessels can slip into the Bay of Bengal undetected by enemy satellites—especially those operated by China—and head toward the strategic Malacca Strait and beyond for deterrent patrols.

Read more at:
https://economictimes.indiatimes.co...ofinterest&utm_medium=text&utm_campaign=cppst

 

[Dharmocrat]

I think there should be one more similar base on the other side of the Indian peninsula opening into Arabian Sea. What is your thought?

---

Built as part of the classified Project Varsha, the Rambilli facility includes a network of underground pens and tunnels designed to discreetly house India’s growing fleet of nuclear-powered ballistic missile submarines (SSBNs). This means these vessels can slip into the Bay of Bengal undetected by enemy satellites—especially those operated by China—and head toward the strategic Malacca Strait and beyond for deterrent patrols.

Read more at:
https://economictimes.indiatimes.co...ofinterest&utm_medium=text&utm_campaign=cppst

Bay of Bengal is deeper than the Arabian sea and has a steeper gradient that let's you access deep water almost immediately on leaving coastal waters. Continental shelf extends 10 to 15 km only, after that it's deep water. Lots of good places to hide.

Arabian sea continental shelf extends a lot more distance and is not conducive for SBBNs especially those for deterrence.