N011M detection range?

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Member for

20 years 2 months

Posts: 3,187

then post it

Last time you didn't like it.... :p

Member for

19 years 9 months

Posts: 12,109

no no..... i have changed now :D :D :D

Member for

20 years 2 months

Posts: 3,187

:p :D

Promise you won't complain?? :D

PS: whats the difference between the APG-63(V)2 and the V3??

Member for

19 years 9 months

Posts: 12,109

Promise you won't complain??

jeez from the pic i can see that the radar will be quite successful...lol

Member for

19 years 9 months

Posts: 12,109

Damn, what a beast!

yeah..even by simply looking at the apg-77 one cans ee that it is considerably bigger in size over the apg-79 and 63v2..the raptor would also get side arrays in 2012 i believe..

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19 years 4 months

Posts: 31

what's the weight of n011m(bars 30) ? bars 29 is 250kg ....

Member for

19 years 9 months

Posts: 12,109

No way could that teency weency APG-80 in the F-16's nose have comparable range

harry found this on a general quality of AESA radars..good read..

Aircraft that use passive ESA radars include the U.S. Air Force’s B-1B bomber and E-8 Joint Surveillance Target Attack Radar System and the French Rafale fighter.

Breakthroughs in T/R module manufacturing and miniaturization in recent years — Northrop Grumman and Raytheon use what they call sixth-generation T/R module technology — at last have made it feasible to fit large numbers of the modules in a lightweight AESA antenna in the nose of a fighter aircraft.

“To populate a radar with many hundreds of these T/R modules and getting them to act together is revolutionary. In fact, taking all the moving parts out of airborne radars is revolutionary,” said Scott Porter, director of aerospace business development at Northrop Grumman-Baltimore.

“For the same amount of real estate on an aircraft, especially fighters, you can cram a lot more of the T/R modules into an antenna and fill up more of the aircraft than you can with an MSA. Instead of one moving antenna with a transmitter black box behind it trying to pump out power, you now have many, many T/R modules mounted together in the same space all staring at the same place at the same time.”

AESA life-cycle costs are expected to be significantly lower than those of MSAs, Porter said, because their electronics will be more reliable and easier to fix than the moving parts in an MSA assembly. Indeed, Northrop Grumman is so confident in the reliability of the Joint Strike Fighter’s APG-81 radar that it may recommend that the nose radome be sealed. Though this would make it harder to repair the system, Northrop Grumman engineers say the radar will function properly for years, and that it could lose up to 6 percent of its T/R modules without affecting performance. “We don’t expect many radomes to be removed after our AESA radars are installed,” Porter said.

Similarly, Raytheon says the mean time between critical failures of its APG-79 radar going on the Navy’s Super Hornets is in excess of 15,000 hours of operation, and claims its AESA antenna might require no maintenance for 10 to 20 years. The only operational fighter aircraft currently equipped with an AESA radar are 18 U.S. Air Force F-15Cs with the 3rd Fighter Wing at Elmendorf Air Force Base, Alaska. They have flown for about five years with the APG-63(V)2 developed by Raytheon Space and Airborne Systems, El Segundo, Calif. That radar, no more of which will be built, is a predecessor to the company’s more advanced Navy APG-79. It was an AESA antenna upgrade to the F-15’s APG-63(V)1 MSA radar designed to add a capability to target small cruise missile-size targets. The APG-63(V)1 MSA remains in full-rate production.

Raytheon has been developing a lighter-weight, more maintainable AESA radar for the Air Force’s other 161 F-15Cs — the APG-63(V)3 — and has built a prototype that will be tested by the service. However, due to budget constraints, those aircraft may never get the upgrade. The Air Force firmly plans to modernize the MSA radar on its 224 newer F-15E ground-attack models, beginning around 2010, likely with an APG-63(V)4 radar from Raytheon that will use the AESA antenna from the (V)3, as well as processors from the Navy’s APG-79.

Drawing on APG-79 technology, the (V)3 AESA uses more compact “tile” T/R modules compared with the (V)2’s larger “brick” modules. The tiles reduce the number of required T/R modules by a factor of four and the depth of the antenna array from nine inches to four inches, said Michael Henchey, Raytheon’s director of strategy and business development for Air Combat Avionics. They also reduce the weight of the array significantly.

Raytheon, following a year of flight testing, began delivering the first low-rate initial production versions of the APG-79 in January to F/A-18 manufacturer Boeing Integrated Defense Systems, St. Louis. The radar is a key element of Block II upgrades preplanned for the Navy’s Super Hornets, which became operational in 2001. The service will conduct operational testing of the LRIP radars on Super Hornets in October and November. Full-rate production of 415 APG-79s is scheduled to begin in 2007.

Bill Gardner, Raytheon’s APG-79 engineering, manufacturing and development program manager, said the radar will detect and track twice as many targets at greater distances than the APG-73, permitting the aircrew to “persistently observe targets and launch air-to-air missiles from their maximum range.” The radar system automatically establishes tracking files for each detected target, reducing pilot workload.

Another key feature of the APG-79 will be its ability to conduct air-to-air and air-to-ground operations essentially simultaneously because it can switch modes so rapidly. The pilot will be able to conduct ground mapping with the radar while it continues searching for and tracking aerial targets.

“With interleaved air-to-air and air-to-surface cockpit displays, the aircrew will be able to maintain situational awareness while executing air-to-surface missions,” Gardner said.

AESA radars also offer better air-to-ground resolution than MSA systems, particularly using their synthetic aperture radar (SAR) mode. As a March 2004 Government Accountability Office report stated, “The first F/A-18F with the AESA radar installed recently demonstrated high-resolution SAR modes at three times the resolution and 2½ times the range of the currently operationally deployed F/A-18 radar. This capability represents the first step in multiple areas that the AESA radar will greatly improve the F/A-18E/F Super Hornet’s air-to-air and air-to-ground radar capabilities in addition to adding modes not currently available to the fleet.”

OTHER AESA RADARS

Early this year, Northrop Grumman-Baltimore delivered the first APG-81 AESA radar for the Lockheed Martin F-35 Joint Strike Fighter. It is undergoing development flight tests onboard Northrop Grumman’s BAC 1-11 flying test-bed aircraft. Late this year, the radar will go to Lockheed Martin’s Mission Systems Integration Lab for testing to integrate it with the rest of the mission systems suite.

A joint venture of Northrop Grumman-Baltimore and Raytheon Network-Centric Systems, McKinney, Texas, has been developing the APG-77 AESA radar for the F/A-22 fighter for nearly 15 years. The radar flew on a preproduction aircraft for the first time in late 2000. Its T/R modules have been improved over time, and software allowing the radar to perform high-resolution mapping of ground targets is being added.

A fourth-generation variant of the APG-77, with design improvements adapted from the APG-81, flew for the first time last June. “We are inserting our fourth-generation AESA technology into the F/A-22’s Lot 5 of production, and that radar is in flight-test now,” Porter said. “So the F-35 and F/A-22 will have highly common radars at that point.” Pentagon officials approved the F/A-22 for full production at the end of March; the fighter will become operational in December.

TAKEN FROM THE JOURNAL OF NET CENTRIC WARFARE

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19 years 9 months

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WELL NORTHROP GRUMMAN HAS FINALLY RELEASED PICS OF THE APG-81 AESA RADAR GOING ONBOARD THE F-35 AS WELL AS THAT OF THE DAS (DIRECT APERTURE SYSTEM)...AS WELL AS OF THE MESA RADAR AND OTHER NG DEVELOPED COMPONENTS OF INTEREST AS FOLLOWS..

1) APG-81 ANTENNA

The AN/APG-81 AESA radar for the F-35 JSF will enable pilots to effectively engage air and ground targets at long range, while also providing outstanding situational awareness for enhanced survivability. The AN/APG-81 provides precision, time-critical all weather targeting through advanced air-to-air combat capabilities, high-resolution air-to-ground mapping and supports automatic target cueing.

2) F-35 DAS

The F-35 JSF Electro-Optical Distributed Aperture System (DAS) will provide pilots with a unique protective sphere around the aircraft for enhanced situational awareness, missile warning, aircraft warning, day/night pilot vision, and fire-control capability. For offensive operations, DAS provides day/night imaging and targets without the use of night vision goggles, off-axis targeting for air-to-air missiles and enables the development of advanced tactics through sharing a common operational picture.

3) NIGHT HUNTER

4) LITTENING POD

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