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Old 27th April 2019, 14:19   #76
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Default Re: The Indian Navy - Combat Fleet

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Originally Posted by Maveryq View Post
. Can anybody please explain the design of the radar on the mast top? Some ships have conventional radars which seem to be rotating type. What advantage does this Kolkata design provide over the conventional rotating design? Is it a stealth issue?
That is an AESA radar
https://en.wikipedia.org/wiki/Active...ray#Advantages
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Old 27th April 2019, 15:41   #77
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An ASEA radar, it is said, is more resistant to jamming and deception and better at detecting targets approaching low and fast and spot them from the sea-wave clutter. Also I believe it is more resistant to physical damage due to the many arrays.
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Old 15th May 2019, 11:41   #78
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Default Re: The Indian Navy - Combat Fleet

Related to the Naval Aviation Fleet.


The Boeing P-8I -Neptune, completes six years of service in the Indian Navy. It is based out of the INS Rajali, in Tamil Nadu. It was earlier the home of the Tu 142 MKE aircraft, which have been retired.



The P-8I is probably more capable aircraft than the earlier Tu 142MKE. Must be having a more comfortable operating environment than the earlier Tu's. I personally liked the earlier Tu's. They had character, and their size overall and the counter-rotating propellers emanated a sense of dread.


The Indian Navy - Combat Fleet-d6lbevcuyaasrfs.jpg-large.jpg

The Indian Navy - Combat Fleet-d6lbimdu0ae0ulp.jpg

The Indian Navy - Combat Fleet-d6lbimduuaekxy0.jpg
Picture Source: Twitter handle of Mr. Rajat Pandit
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Old 28th May 2019, 17:38   #79
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Default Re: The Indian Navy - Combat Fleet

I was lucky to get an opportunity to visit Karwar Naval base. Got to see INS Vikramaditya, it's H-U-G-E. Posting pics taken in mobile camera, sorry for the poor quality.

The Indian Navy - Combat Fleet-img_20190527_101529.jpg

The Indian Navy - Combat Fleet-img_20190528_174356.jpg

Last edited by aah78 : 28th May 2019 at 23:23. Reason: Pictures inserted in-line.
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Old 28th May 2019, 21:13   #80
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Default Re: The Indian Navy - Combat Fleet

^^^^^
Yup she is a BIG ship - two and a half football fields and more!! - 284 metres

The Indian Navy - Combat Fleet-r33-r22.jpg
Two IN carriers sailing in company - a sight we wont see for a 2 or 3 more years till Vikrant II joins the fleet. INS Vikramaditya (left) sailing with INS Viraat

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A good shot that depicts clearly how high the ski jump rises. See how the ski jump is as high above the flight deck as the deck is above water.

The Indian Navy - Combat Fleet-r33-sunset.jpg
One of my favourite photos of INS Vikramaditya.

Source: all photos from the Indian Navy.
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Old 29th May 2019, 15:26   #81
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Default Re: The Indian Navy - Combat Fleet

Quote:
Originally Posted by V.Narayan View Post
An ASEA radar, it is said, is more resistant to jamming and deception and better at detecting targets approaching low and fast and spot them from the sea-wave clutter. Also I believe it is more resistant to physical damage due to the many arrays.
To continue on the last point, the lack of moving parts like you'd see in a traditional rotating radar unit or pivoting one for that matter makes it less likely to suffer a form of failure. It essentially achieves widespread coverage through switching on different parts of the array electronically and scanning different sections at a time. If you were to imagine it as a disc of LEDs for example, instead of having the whole disc lit and spinning to scan a room it stays stationary and lights up individual LEDs to get a fuller picture of the room. At least that's how I picture it in my head.
Furthermore because of that ability to turn on individual parts AESA radars are able to track a far greater number of targets at once and hence you see them used as part of systems like the AEGIS ballistic missile defence system - think about it, you've got multiple MIRVs raining down on you or say you're being spammed with a volley of anti ship cruise missiles lobbed at you from a stand off distance - you'd want your radar system to be able to individually track each of those incoming projectiles so that the fire control system computers can then work out fire solutions for each one.


Here's a video I found that might help.

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See the flat hexagonal/octagonal disc on the main bridge structure? That's part of the radar system. Along with 3 other such panels placed all the way around they give full coverage to the ship and it's the same for our Kolkata class radar system, hence it's mounted so high up - a modern crows nest so to speak. Similarly you have the tall almost comical mast for the SAMSON radar on the UK's new Type 45 destroyers, same principle really
The Indian Navy - Combat Fleet-2.png

Last edited by ads11 : 29th May 2019 at 15:40.
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Old 21st June 2019, 18:58   #82
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Default Re: The Indian Navy - Combat Fleet

India sending warships to the Middle East to protect shipping

Two of the ships shown in the first page have been deployed for shipping escort duties in the Middle East (Gulf of Oman) - INS Chennai (Kolkata-class Destroyer) and INS Sunayna (Saryu-class Patrol Vessel).

Wishing them the very best in this tour of duty, esp since tensions are high in the general region.
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Old 21st June 2019, 22:52   #83
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https://twitter.com/livefist/status/1142084486298910725

Quote:
BREAKING: Fire on board INS Visakhapatnam destroyer at Mazagon Docks Ltd (MDL) Mumbai. The ship is near complete. The P15B destroyer was launched back in 2015. Details awaited.
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Old 22nd June 2019, 05:53   #84
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Default Re: The Indian Navy - Combat Fleet

Along with the two ships, INS Chennai and INS Sunayna, Indian Navy officers and sailors will be positioned on Indian Flagged Tankers in an advisory role. Very good move by the Navy considering the tension in the Persian Gulf. The oil-fields of KSA, UAE and Iran are so close that the Offshore Platforms of Iran are visible from the oilfields in KSA and UAE.

https://timesofindia.indiatimes.com/...w/69894377.cms
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Old 24th August 2019, 18:59   #85
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INS Betwa incident.

https://www.thenewsminute.com/articl...d-crime-107753


Three senior officers of the Indian Navy were on Friday recommended for punishment by a court martial for "negligence" in connection with the accident of frontline warship INS Betwa.

In 2016, INS Betwa a 4000 tonne ship had tipped over and crashed on its side in the dockyard here, during an undocking procedure, killing two personnel and causing serious damage to the combat vessel.

The officers have been recommended to be punished for their negligence in not maintaining the register for weight changes in the warship while it was undergoing refit and overhaul in the naval dockyards here.

The way a ship is docked and rested on giant blocks of wood is a miracle in itself. That this is done without incident year in and year out by dockyards across the world is testimony to their skill. This incident o best of my knowledge is a first ever for the Indian Navy and a great embarrassment.

I wonder if this discipline were to be applied to some of our Defence PSU’s such as HAL or the Ordnance Factories how much more productive they could possibly be.
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Old 18th September 2019, 10:55   #86
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Default Re: The Indian Navy - Combat Fleet

This is serious.
Hard disk stolen from first indigenous aircraft carrier under construction at Cochin shipyard.

https://www.google.com/amp/s/m.times...w/71175093.cms
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Old 29th September 2019, 11:49   #87
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Default Re: The Indian Navy - Combat Fleet

First Project 17A Frigate launched - INS Nilgiri

INS Nilgiri that took to the water on 28-9-2019 is an improved Shivalik class guided missile frigate. It is the lead ship of what is to be a class of seven such warships that will carry forward the honoured names of the first series of warships ever to be built in India.

https://www.ndtv.com/india-news/rajn...trials-2108703

My late father was one of a team of 3 Naval officers who were seconded to Maz Docks in the 1960s to build the first INS Nilgiri which was India's first ever major warship built locally. It was a British design. That story is narrated here on Team BHP -

https://www.team-bhp.com/forum/comme...ahmaputra.html (Indian Navy - A Shipbuilders Navy: INS Nilgiri, INS Godavari & INS Brahmaputra)

Four more of the class have been laid down and two further are planned. This is an Indian designed Indian built 6700 tonne warship. The ship will join the fleet in 2022 after completing its fitting out and probably one year of first of class sea trials. Cost is ~ 6500 crores a piece. The original Nilgiri cost Rs 20 crores in c.1970 money or about Rs 800 crores today.

Details:

Displacement~6700 tonnes
Length: 149 metres
Beam: 18 metres
Propulsion: 2 LM2500 General Electric gas turbines for speed and 2 MAN diesels for cruise. Configuration CODOG {Combined Diesel or Gas Turbine}
Top speed: 28+ knots (52 kmph)

Weapons suite:

Barak 8 SAMs for area air defence. With a range of ~100 kms. Capability to handle saturation attacks as it is married to the Israel MF-STAR ASEA radar system
2 x 30mm AK630 close in weapon systems for last ditch anti-missile and anti-aircraft defence. This is a 6 barrel gatling gun that fires 60 30mm rounds per second in short bursts
1 x 127mm Oto Melara dual purpose gun. Also for shore bombardment. Good to see big naval guns coming back to the IN
8 x Brahmos Surface to Surface long range missiles for anti-ship duties and also shore precision bombardment
2 x RBU 6000 anti-submarine rocket launchers. The '6000' indicates the range in metres.
2 x triple anti-submarine torpedo tubes of unknown caliber
2 x large helicopters with flight deck and hangar aft.

It is interesting that today's frigates being built for the IN are almost as well armed as destroyers {the next higher category warship} we designed and built just 20 years ago - here I refer to the Delhi class. The new ship has long range offensive capabilities in all three dimensions. Normally a frigate carried long range in one dimension or at the most two and self defense in the third. It is a good sign of design philosophy that the IN is building the largest practical hull around the power plant & weapons suite. A large hull renders endurance, sustainability (ie more ammunition) and greater ability to absorb damage.

Jai Hind.

Photo below of INS Shayadri of the P17 class. INS Nilgiri will look similar but not identical
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Outline below of the old INS Nilgiri that started the IN's highly successful story of indigenous designThe Indian Navy - Combat Fleet-1e-nil.-line.jpg

Last edited by V.Narayan : 29th September 2019 at 11:50.
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