Lockheed’s TR-X Reconnaissance Aircraft Will Have Stealthy Shape, Skin
Citat:The high-flying tactical reconnaissance UAS will eventually incorporate a stealthy outer mold line and a radar-absorbing skin, allowing it to penetrate deep into enemy territory, according to Scott Winstead, Lockheed’s U-2 business development manager.
Citat:Initially, the TR-X will meet the Air Force’s immediate ISR need by carrying the U-2’s existing, unstealthy nose, which houses either the synthetic aperture radar or the powerful SYERS-2 electro-optical/infrared (EO/IR) camera, depending on the mission, on a low-observable structure. While the initial TR-X design will have a straight wing, which is not characteristic of a stealth aircraft, it will be complemented by low-observable shaping, Winstead says.
“This is what TR-X can offer-—a low-signature structure that can fly with the cutting-edge, state-of-the-art sensors of today’s platforms,” he says.
TR-X essentially takes the advantages of the high-flying U-2 and the long-endurance Global Hawk and merges them into one. Since the new aircraft will be unmanned, it will also have greater range than the U-2. It will be able to fly at least 24 hr.—longer with one aerial refueling—compared to the Global Hawk’s 28-30-hr. endurance. Using the U-2’s powerful General Electric F118 engine, TR-X will fly at 70,000 ft.—more than 10,000 ft. higher than Global Hawk’s advertised service ceiling—and maintain a 5,000-lb. payload capacity.
The Air Force’s current budget plan calls for retiring the U-2 in 2019 and replacing the spy plane with a Global Hawk upgraded with some of the U-2’s powerful sensors. But the initial TR-X is a more cost-effective solution to the service’s short-term ISR needs, Winstead says. Lockheed projects that an initial design fleet of 30 TR-Xs would cost $3.8 billion and could be ready to go in seven years, he says, in contrast to the $3.5 billion the Air Force is planning to spend to turn the Global Hawk into “an 80% U-2 solution.”
http://aviationweek.com/defense/lockheed-s-tr-x-re.....shape-skin
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