One reason for the tall, vertical tail on an airliner is to allow the pilot to compensate with the rudder for the yaw created when a wing-mounted engine fails.

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Further, Test and Evaluation officials discovered a handful of cracks on the right wing and right engine of the U.S. Air Force F-35A version, as well as multiple cracks on the bulkhead flange of the Marine short takeoff F-35B version.

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The 30-year-old's car was fitted with a new front wing, diffuser, engine cover and exhausts.

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The man, who has not been named, died when the single engine, single wing aircraft came down at the Army Aviation Centre in Middle Wallop.

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McLaren introduced several new parts for the home race of their German engine suppliers and sponsors Mercedes as Hamilton ran with a new front wing, diffuser and top bodywork.

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The car's ultrasonic sensors check for obstacles, and software starts and stops the engine, controls the brakes and hazard-warning flashers, and folds the wing mirrors in and out.

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The R29 incorporates the wide nose and narrow rear wing seen in other 2009 cars, and carries over last season's shark-fin engine cover.

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