Thursday 21 February 2013

How To Draw Fighter Jets

How To Draw Fighter Jets Biography

The F-22's avionics include BAE Systems E&IS radar warning receiver (RWR) AN/ALR-94,[168] AN/AAR 56 Infra-Red and Ultra-Violet MAWS (Missile Approach Warning System) and the Northrop Grumman AN/APG-77 Active Electronically Scanned Array (AESA) radar. The AN/ALR-94 is a passive receiver system to detect radar signals; composed of more than 30 antennas blended into the wings and fuselage that provide all around coverage. It was described by Tom Burbage, former F-22 program head at Lockheed Martin, as "the most technically complex piece of equipment on the aircraft." It has a greater range (250+ nmi) than the radar, allowing the F-22 to limit its own radar emissions to maximise stealth. As a target approaches, the receiver can cue the AN/APG-77 radar to track the target with a narrow beam, which can be as focused down to 2° by 2° in azimuth and elevation.[169]
The AN/APG-77 AESA radar
The AN/APG-77 radar, designed for air superiority and strike operations, features a low-observable, active-aperture, electronically-scanned array that can track multiple targets in any weather. The AN/APG-77 changes frequencies more than 1,000 times per second to lower interception probability. Additionally, radar emissions can be focused in an electronic-attack capability to overload enemy sensors.[170][171]
The radar's information is processed by two Raytheon Common Integrated Processor (CIP)s. Each CIP can process 10.5 billion instructions per second and has 300 megabytes of memory. Information can be gathered from the radar and other onboard and offboard systems, filtered by the CIP, and offered in easy-to-digest ways on several cockpit displays, enabling the pilot to remain on top of complicated situations. The F-22's avionics software has some 1.7 million lines of code, the majority involving processing data from the radar.[172] The radar has an estimated range of 125–150 miles, though planned upgrades will allow a range of 250 miles (400 km) or more in narrow beams.[156] In 2007, tests by Northrop Grumman, Lockheed Martin, and L-3 Communications enabled the AESA system of a Raptor to act like a WiFi access point, able to transmit data at 548 megabits per second and receive at gigabit speed; this is far faster than the Link 16 system used by U.S. and allied aircraft, which transfers data at just over 1 Mbit/
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets
How To Draw Fighter Jets

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