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BK-1 is the first international F-35, moving from final assembly to the fuel barn on November 20th, 2011. [Lockheed Martin photo by Randy Crites]
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The first international F-35 Lightning II rolls out of the factory on November 20th, 2011. The United Kingdom MoD will use the short takeoff/vertical landing (STOVL) jet, known as BK-1, for training and operational tests. [Lockheed Martin photo by Randy Crites]
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The first international F-35 Lightning II rolls out of the factory on November 20th, 2011. The United Kingdom MoD will use the short takeoff/vertical landing (STOVL) jet, known as BK-1, for training and operational tests. [Lockheed Martin photo by Randy Crites]
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First flight of F-35B BK-01 seen air-to-air with Bill 'Giggs' Gigliotti at the controls on April 13th, 2012. [Lockheed Martin photo by David Drais]
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The UK's first F-35B BK-01 seen air-to-air during its first flight on April 13th, 2012. [Lockheed Martin photo by David Drais]
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The UK's first F-35B BK-01 lands after its first flight on April 13th, 2012. [Lockheed Martin photo by Tom Harvey]
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Bill 'Giggs' Gigliotti pilot for first flight of F-35B, BK-01, poses with a UK flag in front of the jet on April 13th, 2012. [Lockheed Martin photo by Tom Harvey]
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RAF F-35B #ZM136 (BK-02) is seen landing at NAS Fort Worth on July 12th, 2012 after one of its first flights. [Photo by Zane Adams]
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Lockheed Martin test pilot Bill Gigliotti flew a 1.4-hour inaugural flight of F-35B BK-2 from NAS Fort Worth JRB on July 11th, 2012. BK-2 (serial number ZM136) is the second F-35 produced for the United Kingdom. [Photo by Carl Richards]
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RAF F-35B (ZM135), the first international Lockheed Martin Lightning II, takes off from NAS Fort Worth on July 23rd, 2012 en route for Eglin AFB. The UK officially took ownership of ZM135 (formerly known as 'BK-1') at a ceremony in Fort Worth on July 19th, 2012. The jet will be used for operational testing and evaluation. [Lockheed Martin photo by Tom Harvey]
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The second F-35 Lightning II for the UK, BK-2 takes off from NAS Fort Worth for delivery to Eglin AFB on October 19th, 2012. [Lockheed Martin photo by Neal Chapman]
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The second United Kingdom F-35 BK-2 & USMCs F-35B BF-16 on the runway at Fort Worth before ferrying to Eglin AFB on October 19th, 2012. [Lockheed Martin photo]
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The second F-35 Lightning II for the UK, BK-02 arrives at Eglin AFB on October 19th, 2012. BK-02 is embedded with USMC squadron VMFAT-501. [USAF photo by Maj. Karen Roganov]
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The third UK Lockheed Martin F-35 BK-3 (ZM137) speeds down the runway at NAS Fort Worth embarking on its first flight with test pilot Alan Norman at the controls on April 1st, 2013. [Lockheed Martin photo by Randy A. Crites]
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The third F-35B for the UK was flown for the first time at NAS Fort Worth on April 1st, 2013. Lockheed Martin Chief Test Pilot Alan Norman flew the aircraft (UK serial ZM137) on the initial flight. [Photo by Carl Richards]