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FORT WORTH, Texas, Dec. 29 (UPI) -- U.S. company Lockheed Martin announced the first of a new F-35 Lightning II aircraft redesigned under a weight-saving program will begin testing.
Lockheed Martin says its first weight-optimized conventional takeoff and landing variant of the F-35 aircraft, an exact copy of what is expected to be delivered to the U.S. Air Force, has been rolled out to undergo testing.
The F-35 CTOL variant, called the AF-1, is the result of Lockheed Martin's 2004 weight-savings program that redesigned the internal structure of the first F-35, or AA-1. Officials say the AF-1 will join the current testing program for Lockheed Martin's F-35 short takeoff/vertical landing variants.
"The Lightning II CTOL aircraft will be, by far, the most widely employed F-35 variant in the world, with more than 1,700 to be used by the U.S. Air Force alone," Dan Crowley, Lockheed Martin executive vice president and F-35 program general manager, said in a statement.
"The F-35A we delivered is, at its core, the same aircraft that will enter operational service with the Air Force and international customers."
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