Indian Home-built Stealth Frigate Sahyadri At Pearl Harbor For RIPMAC 14

[GORKHALI]

That is the overall conception of the ship design. Never ever you will see that this principle is employed on the soldered steel plates of the hull...Show me the beef (on this) ..

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French Stealth La Fayette-class frigate,check the angled and uneven sides made of radar absorbent material, a composite material of wood and glass fiber as hard as steel, light, and resistant to fire........the so called shoddy work.

 

[Kloitra]

That is the overall conception of the ship design. Never ever you will see that this principle is employed on the soldered steel plates of the hull...Show me the beef (on this) ..

View attachment 37255

If only things were so easy as you are trying to portray. You are trying to simplify the stealth shaping to one of the very basic ones. Your image above doesn't displays all the incidence angles at all the surfaces and all the surface sizes. You also fail to realize that F117 was built to be stealthy against ~cm range, while ships would encounter lower frequencies. The angles on the surfaces for incident radar beam are all different for the ship and the plane. The background with which to hide the two are all different. The clutter the two intend to produce is different, one mimicking probably a flock of bird while other a small fishing boat. The plane needs a certain surface material and design for travelling through air at supersonic speeds, while ship doesn't.

And than you post a pick of a small corvette in the discussion on frigate.

 

[narcon]

French Stealth La Fayette-class frigate,check the angled and uneven sides made of radar absorbent material, a composite material of wood and glass fiber as hard as steel, light, and resistant to fire........the so called shoddy work.

RAM and other material coating is a different matter altogether.
Compare apple with apple and not oranges.
There are various principles available for a vessel to have it camouflaged ...

 

[Basel]

Other then US who is also the leader in Stealth tech, which country produce best stealth ship for the market? and how stealth allow to evade enemy attack on ships as they still have much larger RCS then fighter jets?

 

[Kloitra]

Other then US who is also the leader in Stealth tech, which country produce best stealth ship for the market? and how stealth allow to evade enemy attack on ships as they still have much larger RCS then fighter jets?

Ships (or even planes) don't go invisible. Rather they pretend to be something else that the enemy is not looking for. For example a ship could pretend to have a very small size, a certain shape, or same reflection as that of background (water) etc. The radar operator would not be able to correctly identify it, and that is the entire purpose.

 

[Basel]

Ships (or even planes) don't go invisible. Rather they pretend to be something else that the enemy is not looking for. For example a ship could pretend to have a very small size, a certain shape, or same reflection as that of background (water) etc. The radar operator would not be able to correctly identify it, and that is the entire purpose

I agree with your post, but what I want to know is that if a large stealth ship (who has little RCS of a boat like PN azmat class) is patrolling in an enemy area where no boats are allowed then, what is the use to stealth, enemy will still know the position and will send some assets to look into.

 

[Lord Of Gondor]

I agree with your post, but what I want to know is that if a large stealth ship (who has little RCS of a boat like PN azmat class) is patrolling in an enemy area where no boats are allowed then, what is the use to stealth, enemy will still know the position and will send some assets to look into.

The 'stealth' vessel will have more time before it's spotted.
More time is always better,I guess...

 

[Basel]

The 'stealth' vessel will have more time before it's spotted.
More time is always better,I guess...

How it will have more time in scenario I have posted? and even if it try to run away it may not be able to do that as air assets will be able to catch up or come close and fire missiles on running boat (for them as per RCS).

the thing is a boat level signature will still allow modern radars to have a lock and fire on it.

 

[Lord Of Gondor]

How it will have more time in scenario I have posted? and even if it try to run away it may not be able to do that as air assets will be able to catch up or come close and fire missiles on running boat (for them as per RCS).

the thing is a boat level signature will still allow modern radars to have a lock and fire on it.

If in the scenario,a ship with no RCS reductions in place, was sailing,it will be detected quicker.
So,a ship with RCS reductions will have more time before it's spotted when compared to a ship without such features...

 

[Kloitra]

I agree with your post, but what I want to know is that if a large stealth ship (who has little RCS of a boat like PN azmat class) is patrolling in an enemy area where no boats are allowed then, what is the use to stealth, enemy will still know the position and will send some assets to look into.

The idea is to hide as a fishing boat or a big wave or something inconspicuous. But if it is detected in an area where none should, that would definitely attract attention. No stealth is going to help. This is always kept in mind when planning. The idea even behind the stealth planes is to plan the mission taking into account the locations of enemy radars and the environment.

 

[acetophenol]

INS Sahyadri (F49)

-Belongs to Shivalik Class Frigates,Succeeding Talwar Class Frigates in Indian Navy
-6,200 Tonnes Displacement
-CODOG Propulsion
-32 Kn speed
-257 crew
-32 x Barack 1 SAM VLS (6 Km)
-24 x Shtil-1 SAM (30 Km)
-8 x BrahMos VLS (290 Km)
-2x2 Torpedo Launchers
-2x RBU-6000 Rocket Launchers
-2xAK-630 CIWS
-1x Otrobeda 3.0 inch
-2 x Helicopters (Sea king,N-Dhruv,Ka-31)

 

[Varunastra]

NOT RIPMAC IT IS RIMPAC !

 

[Dash]

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Have a great day - Or whatever is left of it...

And people who never win and never quit are Idiots.......

RAM and other material coating is a different matter altogether.
Compare apple with apple and not oranges.
There are various principles available for a vessel to have it camouflaged ...

You want to camouflage a "Vessel", with what a bathroom towel?
There is no principle to camouflage a vessel, even a flying craft cant be camouflaged. The angled deflection is the first,followed by RAM is the only way now for stealth ships. Since the RCS is HUGE.

 

[Basel]

The idea is to hide as a fishing boat or a big wave or something inconspicuous. But if it is detected in an area where none should, that would definitely attract attention. No stealth is going to help. This is always kept in mind when planning. The idea even behind the stealth planes is to plan the mission taking into account the locations of enemy radars and the environment.

That is the scenario I m talking about as PN will not allow any ship or boat to at sea in its controlled areas or may be near border areas in case of war and even if they allow they will be in small numbers and constantly tracked, so any new vessel even a boat will be detected as it appear on radar or other systems. Then it will be hard to run out from that situation for that ship. But stealth will work well in high shipping areas where IN have shown intentions to block Pakistan oriented ships in case of war and it may be difficult for PN to go that far for long station enough assets to neutralize this threat.

 

[NEPALESE GURKHA]

Hyper-sonic missile are incorporated in it or not ?