Fighter aircraft

Fighter aircraft

A community portal about Fighter aircraft with blogs, videos, and photos. According to Wikipedia.org: A fighter aircraft is a military aircraft designed primarily for attacking other aircraft, as opposed to a bomber, which is designed to... [more]

A community portal about Fighter aircraft with blogs, videos, and photos. According to Wikipedia.org: A fighter aircraft is a military aircraft designed primarily for attacking other aircraft, as opposed to a bomber, which is designed to attack ground targets, primarily by dropping bombs. Fighters are comparatively small, fast, and maneuverable. They were developed in response to the fledgling use of aircraft and dirigibles in World War I for reconnaissance and ground attack roles. These early fighters were mostly wooden biplanes with light machine guns. As aerial warfare became increasingly important, so did control of the airspace. By World War II, fighters were predominantly metal monoplanes with wing-mounted cannon. Following the war, turbojets replaced piston engines as the means of propulsion, and missiles augmented or replaced guns. For historical purposes, jet fighters are classified by generation. The generation terminology was initiated by Russian defense parlance in referring to the F-35 Lightning II as a "fifth generation" plane. Years are not exact and intended as a guideline. Modern jet fighters are predominantly powered by one or two turbofan engines, armed primarily with missiles, with a cannon as backup armament, and equipped with a radar as the primary method of target acquisition.

GE, Rolls halt tests on US F-35 alternate engine

WASHINGTON (Reuters) - General Electric Co <GE.N> and Britain's Rolls Royce Group PLC <RR.L> said on Wednesday they have halted tests on an alternate engine for the F-35 fighter jet after damage was found to some turbine blades, and no timetable was given for the tests to resume.

Tests in Cincinnati last weekend revealed "dings and nicks" on the turbine blades but no damage to the compressor or the fan. The engine was running normally at the time of the shutdown, GE and Rolls said in a joint statement.

"It's why you run jet engines to their limits during the development program -- to identify potential issues," the statement said.

More details are expected in a few days.

Lockheed Martin Corp <LMT.N> builds the F-35. Pratt & Whitney, a unit of United Technologies Corp <UTX.N>, builds the plane's main engine.

A fan blade tip broke in testing of the main engine in September. Modifications are minor and will result in little to no disruption in cost or scheduling, Pratt said last month.

Congressional negotiators agreed on Tuesday to include $560 million in the current fiscal year to pay for the alternate engine. The Obama administration has opposed funding for it.

(Reporting by Andrea Shalal-Esa; Editing by Gary Hill)

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