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Indian Navy gets its most sophisticated system yet in P8-I maritime aircraf

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The Boeing P8-I long-range maritime reconnaissance aircraft (LRMRA) which the Indian Navy got last month is the most sophisticated weapon system in its inventory yet.

The aircraft, which is now being used for training by Indian naval personnel in coordination with the US Navy in the US, has the latest radars, electronic warfare systems, and weapons to kill hostile submarines, several of which lurk underwater in the Arabian Sea and Bay of Bengal around the Indian coast.

Built on the body of a civilian Boeing 737-800 jetliner with the wings of a 737-900, the P8-I is actually an attack aircraft, capable of discriminating between friendly and hostile vessels far away and then hit them with desired priority and lethality.

Its key capability though is to detect and delete hostile submarines, as also small boats in shallow waters which pose the most serious threat to Indian naval assets.

India has purchased eight P8-Is from the US Navy under the US government’s Foreign Military Sales (FMS) programme and the government has cleared four more for which there was an option. Another 12 P8-Is, or similar aircraft, should be acquired later.

The $2.1 billion-plus deal for aircraft covers onboard offensive and defensive systems and training. Weapons like the Boeing Harpoon Block II missiles, sonobuoys, Raytheon’s Mk 54 torpedoes, some freefall weapons cost additional.

The P8-I is a derivative of the US Navy’s P8-A multi-mission maritime aircraft (MMA) developed at the cost of billions of dollars. The first P8-A was delivered to it in March 2012, and so far, it has received five of the 117 ordered aircraft.

The Indian Navy is the first foreign customer and not much apart in time.

Understandably though, the P8-Is would not have the same range and features as the P8-As, but then the Indian requirements are met appropriately. In any case, there cannot be 100 per cent commonality as neither would the US share its latest technologies nor is India looking for interoperability with US assets.

Mission computers form the heart of the P8-I, integrating various sensors, radars and weapons on board, directing their power, reach and the required urgency in neutralizing hostile targets.

There are five to seven consoles for the operators, who can command the system to initiate and execute real-time action and attack.

Although the P8-I is not an AWACS (airborne warning and control systems) aircraft, it can operate as one in a limited way, and coordinate with the Indian Navy or Indian Air Force (IAF) combat jets to shower hell on an enemy.

The Indian P8-Is will be integrated with the Indian Navy and IAF assets, including fighters, AWACS and ground stations, thanks to net-centricity. Both the Navy and IAF fly Mig 29s for instance, and in the recent years, all the three services are approaching war-fighting with an emphasis on jointness.

The three services periodically hold joint exercises, and one such is due between the Indian Navy and IAF around March. Once the P8-I start arriving from mid-2013 onwards, there would be more exercises.

Meanwhile, the infrastructure to operate the P8-Is is being built at INS Rajali at Arakkonam Naval Air Station in Tamil Nadu, from where the aircraft can easily fly towards the Bay of Bengal or the Arabian Sea. All the 12 aircraft will be based there.

Notably, unlike the earlier aircraft used for maritime reconnaissance and attack role, the four-engined Il-38 and Tu 142 which the Indian Navy has, or the Orion P3C which the US Navy has been flying so far, the P8-I is a jet with jet speed. Its two CFM 56 engines have, however, been tweaked to allow it to fly slow, and low above water.

The acquisition of the P8-I has brought to the Indian Navy some of the most sophisticated radar and other systems, particularly Raytheon’s AN/APY-10 multi-mission surface search radar with a range of 200-400 km. This forward-looking Synthetic Aperture Radar (SAR) with 240 degree coverage is built on the technology of the famed AESA (Active Electronically Scanned Array) radar that the (IAF) wants on all its combat aircraft, beginning with the Multi Role Combat Aircraft (MRCA) being negotiated now.

To ensure 360 degree scanning however, the Indian Navy has got an aft radar from US Telephonics for rear coverage.

The US Navy aircraft do not need aft radars as there are several US surveillance assets, including aircraft and satellites, in the sky at any time. The P-8A however is primarily meant to function in alignment with the unmanned Broad Area Maritime Surveillance (BAMS) aircraft (designated MQ-4C Triton), which is still under development by Northrop Grumman.

The P8-I has some systems supplied by Indian companies to make its communications secure and compatible with Indian naval and air assets.

They include Data Link II (communication system) from Bharat Electronics, IFF (Identify Friend or Foe system) transponder from HAL (Hindustan Aeronautics Ltd), speech secrecy system from ECIL (Electronics Corporation of India Ltd) and mobile SATCOM (satellite communication system) from Avantel. All the P8-Is, as well as other navy aircraft now have net-centric capabilities and interoperability with IAF aircraft and ground stations.

India received the first P8-I when Cmde Alok Bhatnagar, naval attache at the Indian embassy in Washington and other Indian Navy officers received it on-site in Seattle in accordance with the contract awarded in 2009.

Indian naval pilots, systems operators and technicians, some of whom have been stationed there to monitor the progress of the project and some others, will now conduct test and training flights with US Navy assistance before this aircraft is brought home.

India will receive two more fully-equipped P-8Is within 2013, and all the eight by 2015.

A Boeing statement said that the manufacturing programme is progressing on schedule, and that Boeing is already assembling the fourth and fifth P-8Is.

P8-Is: Indian Navy's eye in the sky
 
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A Good Read:

P-8I Neptune Maritime Multimission Aircraft (MMA)

p8aposeidon.jpg


Introduction

India is procuring 12 P-8I Neptune Maritime Multimission Aircraft (MMA) aircraft for use by the Indian Navy under a deal worth more than $3 billion.

The P-8I Neptune is the Indian Navy variant of the P-8A Poseidon that Boeing is developing for the U.S. Navy. Based on the Boeing Next-Generation 737 commercial airplane, it is equipped for long range antisubmarine warfare, anti surface warfare, intelligence, surveillance and reconnaissance aircraft capable of broad area, maritime and littoral operations.

It is being built by a Boeing-led industry team that includes CFM International, Northrop Grumman, Raytheon, Spirit AeroSystems and GE Aviation. The team currently is assembling and testing the first five P-8As.

The P-8Is will replace Indian Navy's antiquated fleet of eight Russian Tu-142M maritime reconnaissance aircraft.

Procurement Overview

On January 1, 2009, India inked a $2.1 billion deal with Boeing for the supply of 8 customized P-8I Poseidon Maritime Multimission Aircraft (MMA), designated P-8I, for use by the Indian Navy

It is the biggest ever defense deal between India and the US, surpassing the 2007 $962 million deal for the supply of six C-130J 'Super Hercules' aircraft for Indian special forces.

The commercial deal between India and Boeing does not include armaments which will be supplied through the foreign military sales system.

India, along with Australia, is among the first foreign buyers of the Poseidon system, which is yet to be inducted into the US Navy.

The U.S. Navy plans to purchase 108 P8As to replace its fleet of P3C aircraft. The first aircraft was flight tested in 2009 and initial operational capability is slated for 2013.

Additional Orders

In October 2010, MOD cleared the purchase of 4 more P-8I aircraft that were on option, taking the total procurement to 12. The order is expected to be placed within FY 2011-12.

Indian Navy Chief Admiral Nirmal Verma told India Strategic defence magazine's December issue that the Navy planned to procure 12 more P-8Is for offshore surveillance and protection, bringing the total order to 24.

Delivery Schedule

India will get its first P-8I in 2013, with delivery of the remaining seven aircraft expected to be completed by 2015-16.

Progress

The second P-8I aircraft for the Indian Navy completed its initial flight on July 12, 2012 taking off from Renton Field at 3:29 p.m. and landing two hours and 14 minutes later at Boeing Field in Seattle.

During the flight, Boeing test pilots performed airborne systems checks and took the P-8I to a maximum altitude of 41,000 feet prior to landing. Boeing will begin mission systems installation and checkout work on the aircraft in the coming weeks.

The first P-8I scheduled for delivery to India made its maiden flight on Wednesday, September 28, 2011, taking off from Renton Field at 12:02 p.m. Pacific time and landing 2 hr 31 min later at Boeing Field in Seattle.

The aircraft commenced its operational flight test program on July 7, 2012 taking off from Boeing Field in Seattle at 9:15 a.m. and landing three hours and 49 minutes later after demonstrating flying qualities and handling characteristics. The flight went as planned with all test objectives met.

During the flight, Boeing test pilots performed airborne systems checks including engine accelerations and decelerations and autopilot flight modes, and took the P-8I to a maximum altitude of 41,000 feet prior to landing. In the coming weeks Boeing will begin mission systems installation and checkout work on the aircraft at a company facility near Boeing Field.

"Today's flight is another on-time milestone for the program," said Leland Wight, Boeing P-8I program manager. "We'll start out testing the P-8I's mission system, which includes its sensors and communication systems. The team then will transition to 'stores' tests during which the P-8I will carry inert weapon shapes under its wings to demonstrate that the aircraft is capable of carrying all the weapons the Indian Navy will use during regular missions."

The stores the P-8I will carry will have the identical shape and size of real weapons, including the Harpoon anti-ship missile, depth bombs and torpedoes.

Basing

The P-8Is will be based at INS Rajali, Arakkonam Naval Air Station in Tamil Nadu, which is currently home base for Indian Navy's 312 Squadron which operates eight Tupolev Tu-142MK-E Aircraft (Bear F mod 3 export variant). The aircraft entered service in the Indian Air Force in 1986 and are equipped for maritime patrol and Anti-Surface Warfare, reconnaissance, air-sea rescue and search and rescue.

Performance

The Poseidon has a 1,200+ nautical miles range, with 4 hours on station. Its range / time on station can be considerably enhanced with in-flight refueling.

It is designed to fly low and slow through the weather, unlike the 737-800; the 737 upswept winglets have been replaced with raked-back wingtips, better suited for icy conditions.

The aircraft will be armed with sonobuoys, torpedos and Harpoon anti-ship missiles. So far India has not conveyed to Boeing any interest in arming the aircraft with the Brahmos missiles.

Sensor Suite

For spotting and tracking threats it is equipped with

1. An upgraded Raytheon APS137 Maritime Surveillance Radar designated AN/APY-10 with 240 degrees forward coverage.

2. Telephonics APS-143C(V)3 Multi-Mode Radar (MMR) for aft coverage. The radar is also fitted on aircraft such as the USCG HC-144A Maritime Patrol Aircraft, and HU-25D Falcon Jet. The APS-143 is featured on most international S-70 Naval Hawk helicopters and certain NH-90, Super Lynx and other Maritime Helicopters. The forward and aft radars will together give the Neptune a 360° surveillance capability against airborne targets.

3. Electro-optical / infrared sensors from Northrop Grumman's Electronic Systems.

4.A rotary internal re loadable pneumatically controlled sonobuoy launcher.

5.Canadian firm CAE's AN/ASQ-508A Advanced Integrated Magnetic Anomaly Detection (MAD) System.

6. SIGINT equipment.

AN/APY-10

Raytheon will supply an international version of the AN/APY-10 radar for use on the P-8I. The radar is capable of long-range surface search and target tracking, periscope detection in high sea states, ship imaging and classification using Inverse Synthetic Aperture Radar (ISAR), and Synthetic Aperture Radar (SAR) for overland surveillance, ground mapping, and targeting.

High-resolution ISAR can be used to image and classify small, fast-moving vessels that operate close to the shore. SAR facilitates imaging stationary ships and boats as well as coastal and overland surveillance.

The new SAR mode in the AN/APY-10 provides multiple resolution strip map and spot SAR operation, and has high-resolution capability for target ID, battle damage assessment (BDA), and targeting.

Self Protection Suite

* Towed Decoy Self Protection
* Infrared countermeasures

Weapon Suite

At the Singapore air show in February 2010, Boeing revealed that the Indian Navy had sought Raytheon Fish Hawk GPS-guidance wing kit along with MK-54 anti-submarine torpedoes as part of the weapons package.

Mk-54 Light Weight Torpedoes

On June 27, 2011, the American Defense Security Cooperation Agency (DSCA) notified the US Congress of the sale of 32 Mk-54 lightweight torpedoes for around $86 million, including associated equipment, spares and logistical support.

The torpedoes, said DSCA, will "provide enhanced capabilities in effective defence of critical sea lines of communication".

The torpedoes are honed to counter quiet diesel-electric submarines operating in the shallow-water littoral to arm its P-8I fleet.

Mk-54 Torpedo Characteristics

The Mk-54 torpedo uses commercial-off-the-shelf (COTS) digital signal-processing technology. It incorporates an advanced guidance and control (G&C) section employing COTS processing technologies and tactical software improvements to significantly increase shallow water counter-countermeasure capability at reduced lifecycle costs.

The Torpedo is capable of engaging targets in most challenging littoral scenarios.

Contractor: Raytheon
Propulsion: liquid propellant
Length: 106.9 inch
Diameter: 12.75 inch
Weight: 608 pounds
Warhead: 96.8 pounds, high-explosive

The Mk 54 has a top speed of about 72kph and a range of about 10km. It features a built in sonar to locate the target sub, as well as acoustic sensors. An onboard computer enables it to compare acoustic signatures picked by its sensors to a data bank to identify the target sub and home on to it.

Torpedo Glide Kits

The Mk-54 torpedo can be released from a height of 20,000 feet using a glide kit consisting of wings, control flaps, a flight control computer, battery and GPS for navigation.

The kit enables the torpedo to glide for 10-15 kilometers, down to about 100 meters altitude. The kit is then jettisoned and the torpedo plunges into the water to seek out the target sub.

Releasing the torpedo from a height allows the aircraft to continue with its surveillance and stay outside the range of any anti-aircraft missile equipped submarine.

It is not clear if India will be getting the torpedoes with the glide kit.

AGM-84L Harpoon Block II Missiles

The aircraft will be equipped with Harpoon Block II anti-ship missile systems. India has signed a package worth $200 million (over Rs 900 crore) for the supply of 21 missile along with associated equipment, parts and logistical support under FMS. The Defense Security Cooperation Agency has notified the US Congress of the possible sale.

India earlier purchased Harpoon Block II missiles for use with the maritime versions of Jaguar aircraft based in Pune.

Indian Electronics

The aircraft will feature some electronic equipment built by the Electronics Corporation of India Limited and Bharat Electronics Limited.

Crew

The aircraft has five identical mission operator consoles, with each having the ability to select which sensor they want to study with two observer stations. The aircraft is designed for user to expand and configure 21 crew seats.

https://sites.google.com/site/idpse...8i-neptune-maritime-multimission-aircraft-mma
 
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Deadly sub hunter

 
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