Bharat Rakshak

in many parts of the world, particularly latin cultures, "hindu" == indian and "indian" == native american

^^^

There is also the Bombardier CRJ series

CRJ 1000

in that case some of the bombardier global 7000/8000, gulfstream 550/650 and dassault falcon900 fit the bill.
all of them have high speed, 13000km of range and can carry around 10 passengers in executive seating. in contrast the smaller passenger oriented jets seldom have more than 4000km of range because they dont need to fly non-stop across such long trans oceanic routes.

All these planes have these lovely ranges with piddly payloads and space, cooling and power to cram decent electronics.

You will need a reasonable sized platform to be somewhat effective.

well the IDF does use the gulfstream and France had a proposal for falcon900 LRMP. so not much space for onboard processing, but they can do the job?
the G550 looks about EMB145 size,
http://cdn-www.airliners.net/aviation-p ... 211110.jpg

I agree the huge brochure ranges are with only 8 people and almost no luggage (being a biz jet)...it will decline hugely once mission eqpt is packed in. but the high ceiling might remain if anyone cares.

CY,

Circumstances have forced India to miniaturize. Along with software, THAT is one of India's basic strengths.

There is a certain amount of risk involved. However, I would not put it past them.

if space and power is the req, then Boeing is offering a downgraded version of the P8I as a MRMP candidate. that would ensure logisitcal common tail across the fleet.
sure it will be more expensive than the small cats but will have AMPLE room for future upgrades and payloads given these birds will fly 40 years in service.

[url=DRDO seeks nod for domestic AWACS]http://www.indianexpress.com/news/drdo-seeks-nod-for-domestic-awacs/906752/0[/url]

The aim is to develop long-range radars with onboard command, control and communications for both tactical and air defence forces from higher altitudes, says the proposal sent on November 21.

well one cannot blame the brazilians for a more austere monitoring mode version - the worst threat is airborne smugglers and drug planes there. argentina, uruguay, chile, paraguay are 180' opposite from the sino-pak combo as neighbours.

our kid may be small but has to be a real hard boiled egg, a guy with chip on shoulder.

DRDO along with Embraer is one of the very few success stories (if proven in time ahead) where collaboration with like minded countries can do wonders. This is just a hairpin tip of the other "could be success" stories on other fields. We should tie up with Brazil on many many other things (defense or non-defense) too!!!!

While this aircraft will now undergo a full certification process over the next two years, India will receive two more Embraer aircraft by the middle of next year to be integrated with the AEW&C System.

The Indian AESA radar is the primary sensor for the indigenous AEW & C. The radar can look 240 degrees within a short time and has a range of 350 km; it can track more than 500 targets simultaneously.

The IFF system has been developed entirely by the CABS. Christopher said, “The IFF determines whether the target determined the primary radar is a friend or foe. The interrogator emits a message querying the target in a particular sector. Replies from the target are automatically associated with the primary radar detections. This information is then used by the AEW&C system to identify friendly and unfriendly aircraft in the area and deal with them appropriately.”

The Defence Acquisition Council has given approval for the indigenous development of 2,700 IFF systems and the Services want a single-box solution in the IFF system. The government has the option of buying the remaining 500 IFF systems in the global market.

well it depends what is the capability of the air to air mode they shoehorned in. even all commercial planes have a2a radar from firms like Bendix. I suspect these are for tracking large planes and weather cell avoidance only....the ability to spot high alt targets, low alt targets, fast movers and low RCS targets like CM/ASM/AAM running around might be quite low to nonexistent.

range is also likely to be very basic.

the KA31 radar will imo outrange and outperform it by a handy margin for airborne threats.

typical airliners get a kopyo sized dish
http://www.flightglobalimages.com/image ... 566041.jpg

the cancelled nimrod AEW had a huge nose
http://cdn-www.airliners.net/aviation-p ... 999455.jpg

so every indication is AEW needs a much bigger radar else the USN with its hordes of P3s would not bother with the cost and complexity of having 4 X E2 on every carrier.

A second requirement is for an air-to-air capability to exploit the aircraft’s typically high operating altitudes. “India is interested in the air picture from high altitude,” said Carey. “We’ve adapted the waveform to give that capability.” Details of the kind of air-to-air capability that can be achieved have not been revealed. Adapting the APY-10 for its extra duties has involved changes in the data- and signal-processors, and some alterations to the actual antenna. Mounted in the lower nose of the P-8, the radar has a forward scan over a 240-deg sector.

These developments have aroused interest among other potential customers. The P-8 is being marketed to a number of countries, and is one of the likely competitors for a forthcoming Singapore maritime patrol requirement.

Found a document detailing the capability downgrading and modification of the APY-10 going into the P-8I.

Modify APY-10 Radar for Export to India
- Modify Radar navigator to remove accumulated carrier phase and revert to earlier, less sophisticated navigator
This appears to be precision GPS that provides input to the radar computer to provide greater accuracy utilizing timing of RF pulses as they return to radar receiver. The situation display operator may therefore have better background map information, and more importantly perhaps better clutter filtering.

- Remove Precision Targeting capability
This is probably referring to radar target detection capability and modifying radar software to properly use the sensors in place for this version of the P-8.

- Remove UHR ISAR capability
- Remove 1 and 3 foot SAR capability
Both of these items are for limiting synthetic aperture radar capability. I find it amazing that Raytheon reveals that the P-8 radar for the USN is capable of 1 and 3 foot range gate capability, but of course they don't state the pulse repitition interval time and range.

- Limit performance to meet 30 meter SAR geo-location accuracy
This is means the radar is capable of 30 m range gate resolution, which is very good. For comparison civilian radar for ATC is capable of 100 m range gate resolution. Note I am not talking about target resolution. With a resolved 30 m range gate, the actual target pulse width is about 0.2 micro seconds which should provide good target resolution provided you can get at least several return pulses.

Add an Interleaved Weather Capability
This seems straight forward and primarily adding software capability.


Add an Air-to-Air Target Detection / Tracking Capability
Although this is limited by a 240 degree view, given the resolution of this radar, it's a good modification. I would probably bet its better than the Phalcon, but of course the P-8 doesn't have the radar range and full azimuthal and elevation coverage. Much will depend on the clutter filtering capability and software. Don't think for a minute Raytheon is going to give this away, not because it is India, but because this is their bread and butter. Even the USN is proababaly paying hundreds of dollars an hour for this type of support.

taken from here:
Link

Found a document detailing the capability downgrading and modification of the APY-10 going into the P-8I.
- Limit performance to meet 30 meter SAR geo-location accuracy

taken from here:
Link