INS Vishal (IAC- II) Aircraft Carrier - Flattop or Ski Jump

[Decklander]

India mulls options for nuclear-powered aircraft carrier
defenceforumindia.com/forum/indian-navy/53238-india-mulls-options-nuclear-powered-aircraft-carrier.html

Let me tell you how it happens.
A ship designed for steam boilers or for gas turbines need same kind of huge engine rooms to house the machinery. The volume is nearly same but the floor density varies. A nuke ship and non nuke ship have many things in common except that instead of boilers, they have nuke reactor using molten metal to generate steam but the propulsion down the steam generation is same. Now when the floor density changes, the CG also changes, you have to find ways to trim the ship. What happens is that the tanks used for storing fuel for steam ships get converted for keeping water and other tanks get converted to ATF tanks for ac. That restores the balance and CG of the ship. It is not so easy as I made it out to be but if you have a design ready, you know what needs to be done to restore balance.

 

[Abhijeet Dey]

A nuclear aircraft carrier is meant for power projection around the globe because of its unlimited supply of nuclear power & capability to take more number of aircrafts. I think the only reason why we should go for nuclear powered aircraft carrier is not Pakistan but to protect India's interests in other countries.

On December 2012 Admiral D K Joshi had warned China that Indian Navy will be deployed in South China Sea to protect India's interests such as oil exploration by ONGC. He also talked of "freedom of navigation in internal waters and protection of our internal assets" which means Indian Navy is taking the role of police (like US Navy). Fighting in South China Sea (and for that matter against China) is suicidal for the Indian Navy given the huge naval assets of PLA Navy.

defenceforumindia.com/forum/indian-navy/44756-indian-navy-intervene-south-china-sea-if-required.html

 

[Bheeshma]

Fighting Indian navy is suicidal for chinese navy. They should stick to 50 km from their shores. They simply don't have any ships capable of taking on IN, Less said about the joke of a carrier they have the better.

 

[The Messiah]

There are a lot of butt hurt people around the world making accusations that it is just hull to a missile will sink it to that usa/russia gifted it and we cant make it ourselves to the age old tripe that why are we building it when we have poor people

It means we are on correct path :cool2:

 

[Decklander]

Fighting Indian navy is suicidal for chinese navy. They should stick to 50 km from their shores. They simply don't have any ships capable of taking on IN, Less said about the joke of a carrier they have the better.

What IN can achieve is a complete blockade of IOR and sea denial of complete SCS. Sea Denial is different from sea control. In sea denial you raise the stakes so high thru use of subs and other assets like fighters that enemy has to pay a very very high cost for using those sea lanes.

 

[nirranj]

What IN can achieve is a complete blockade of IOR and sea denial of complete SCS. Sea Denial is different from sea control. In sea denial you raise the stakes so high thru use of subs and other assets like fighters that enemy has to pay a very very high cost for using those sea lanes.

In my point of view, Andamans is the greatest strategic asset we hold against the Chinese. even without Aircraft Carriers we can still use the Air bases in the Andaman's to ensure Sea denial in the East Indian ocean and south west pacific.

 

[nirranj]

The realisation of India's grand-'naval engineering' dreams - Hindustan Times

The 37,500-tonne, 260-feet-long Vikrant will be followed by its larger sister, the INS Vishal, whose construction began last year. As the name suggests, the Vishal will be larger (roughly 65,000 tonnes), possibly a traditional flat-deck carrier with catapults instead of ski-jumps like the Vikrant and the Vikramaditya.

Has the construction started for the Second IAC??

 

[Neeraj Mathur]

The realisation of India's grand-'naval engineering' dreams - Hindustan Times



Has the construction started for the Second IAC??

nope its still on drawing board.

 

[lookieloo]

nope its still on drawing board.

Not even long-lead items?

 

[Kunal Biswas]

One of the first signs, you will see an artistic impression from official source, until then ..

Most can assume facts ..

Not even long-lead items?

 

[drkrn]

What IN can achieve is a complete blockade of IOR and sea denial of complete SCS. Sea Denial is different from sea control. In sea denial you raise the stakes so high thru use of subs and other assets like fighters that enemy has to pay a very very high cost for using those sea lanes.

sea denial in south china sea.you are too optimistic bro

 

[Kunal Biswas]

I wouldn't say so ..

sea denial in south china sea.you are too optimistic bro

 

[drkrn]

I wouldn't say so ..

so what wouldn't you say no to

 

[Kunal Biswas]

Sea denial ( Area dominance ) is very possible in SCS, thanks to Andaman islands..

All you need is Air power and Submarine force in the area, And IN has both in that particular area which is very close to the SCS, PLAN does not have such power projection in that area..

so what wouldn't you say no to

 

[drkrn]

Sea denial ( Area dominance ) is very possible in SCS, thanks to Andaman islands..

All you need is Air power and Submarine force in the area, And IN has both in that particular area which is very close to the SCS, PLAN does not have such power projection in that area..

south china sea is their back yard unless their submarine fleet/naval is a useless one they can do a lot

 

[Kunal Biswas]

Backyard does not have to be mean they dominate it, Its sound nice in media sensational headlines, In reality its not ..

SCS is shared by many other nations ( Look at the map of SCS ) there is zero airbases, No airbase no air-superiority and little place to maneuver ..

In Indian context there are two functional airbases, as long there are airbases, P8I and SU-30MKI & Submarine warfare can alone make major PLAN activity zero..

' Sea Denial ' as stated by @Decklander Sir..

south china sea is their back yard unless their submarine fleet/naval is a useless one they can do a lot

 

[ant80]

So the design of Vishal isn't frozen yet, right? Because the US seems to be willing to give/sell EMALS technology for it.

 

[arnabmit]

4 questions sir...

1) Why are nuke reactors used to produce steam for propulsion? Why not produce electricity instead and use electric motors for propulsion?

2) For INS Vikrant, 4 General Electric LM2500+ gas turbines driving two shafts will provide a total power of 80MW. The Arihant reactor produces 83MW. Can it be retrofitted later to reclaim more hangar space?

3) For INS Vishal, would 2 of the 83MW reactors suffice or would need bigger reactors?

4) Are there any bigger reactors planned? of what power? What stage of development?

Let me tell you how it happens.
A ship designed for steam boilers or for gas turbines need same kind of huge engine rooms to house the machinery. The volume is nearly same but the floor density varies. A nuke ship and non nuke ship have many things in common except that instead of boilers, they have nuke reactor using molten metal to generate steam but the propulsion down the steam generation is same. Now when the floor density changes, the CG also changes, you have to find ways to trim the ship. What happens is that the tanks used for storing fuel for steam ships get converted for keeping water and other tanks get converted to ATF tanks for ac. That restores the balance and CG of the ship. It is not so easy as I made it out to be but if you have a design ready, you know what needs to be done to restore balance.

 

[arnabmit]

@Decklander sir, could you please answer my queries?

4 questions sir...

1) Why are nuke reactors used to produce steam for propulsion? Why not produce electricity instead and use electric motors for propulsion?

2) For INS Vikrant, 4 General Electric LM2500+ gas turbines driving two shafts will provide a total power of 80MW. The Arihant reactor produces 83MW. Can it be retrofitted later to reclaim more hangar space?

3) For INS Vishal, would 2 of the 83MW reactors suffice or would need bigger reactors?

4) Are there any bigger reactors planned? of what power? What stage of development?

Let me tell you how it happens.
A ship designed for steam boilers or for gas turbines need same kind of huge engine rooms to house the machinery. The volume is nearly same but the floor density varies. A nuke ship and non nuke ship have many things in common except that instead of boilers, they have nuke reactor using molten metal to generate steam but the propulsion down the steam generation is same. Now when the floor density changes, the CG also changes, you have to find ways to trim the ship. What happens is that the tanks used for storing fuel for steam ships get converted for keeping water and other tanks get converted to ATF tanks for ac. That restores the balance and CG of the ship. It is not so easy as I made it out to be but if you have a design ready, you know what needs to be done to restore balance.

 

[nirranj]

4 questions sir...

1) Why are nuke reactors used to produce steam for propulsion? Why not produce electricity instead and use electric motors for propulsion?

Sir, the Steam produced in the heat exchanger of the reactor runs the Turbine, which inturn runs the Generators. So won't it be adding extra equipments (Generators, Electric motors) into the Transmission system??