美国马里兰州东海岸，美国海军陆战队 F-35B“闪电”II 系统发展与验证机（BF-02）与空军 KC-135 进行空中加油测试。（BF-02 | Flight 322 | Major Justin "Geico" Carlson | Geico piloting BF-02 during KC-135 Strategic Tanker testing over the Eastern Shore of MD on Aug 11, 2014.）

美国加利福尼亚州爱德华兹空军基地，美国海军 VX-23 空中测试与评估中队 F-35B“闪电”II 进行湿跑道和侧风环境垂直起降试验。（The Lockheed Martin F-35B Joint Strike Fighter completes a required wet runway and crosswind testing at Edwards Air Force Base, Calif., an important program milestone enabling U.S. Marines Corps initial operational capability certification.）

2014年6月11日，美国空军 F-35A“闪电”II 常规起降型系统发展与验证机爱德华兹空军基地进行飞行包线扩展试飞，这架AF-02成为了第一架达到1000飞行小时的F-35。（Paul Hattendorf, a Lockheed Martin test pilot, flies AF-2, the second production F-35 Lightning II for the Air Force, during an airframe loads envelope expansion mission June 11, 2014, over Edwards Air Force Base, Calif. During the test mission, AF-2 became the first F-35 to reach 1,000 flight hours.）

2014年3月14日，美国空军一架 F-35A“雷电”II 联合攻击战斗机从希尔空军基地起飞。（An F35a takes off from Hill Air Force Base, Utah, March 14, 2014. After getting upgrades the F35a is on its way back to Nellis AFB, Nev）

2014年3月7日，美国加利福尼亚州，美国空军 F-35A“闪电”II 常规起降型系统发展与验证机在大迎角试飞时飞越爱德华兹空军基地，留下长长的飞行轨迹，试飞员是文森特卡特里纳。（F-35A aircraft AF-4, flown by test pilot Vincent Caterina, executes a High Angle of Attack mission profile on a test flight over Edwards AFB, Calif. on Mar 7, 2014.FORT WORTH, Texas, April 15, 2014 - The Lockheed Martin [NYSE: LMT] F-35 Lightning II fleet recently surpassed 15,000 flight hours, marking a major milestone for the program.）

2012年11月3日，美国加利福尼亚州爱德华兹空军基地，美国空军 F-35A“闪电”II 常规起降型系统发展与验证机开始进入大迎角试飞阶段，将分架次从20度逐步增加至设计限制的50度。（F-35A test aircraft AF-4 flies a high angle of attack (AOA) mission Nov. 3. The F-35 is designed to fly to a 50 degree angle of attack, which was achieved on the fourth AOA test mission. The aircraft has an emergency spin chute installed to help return the aircraft to controlled flight in the case that AOA test push the aircraft out of flight control limits.）

2012年11月3日，美国加利福尼亚州爱德华兹空军基地，美国空军 F-35A“闪电”II 常规起降型系统发展与验证机开始进入大迎角试飞阶段，将分架次从20度逐步增加至设计限制的50度。（F-35A test aircraft AF-4 flies a high angle of attack (AOA) mission Nov. 3. The F-35 is designed to fly to a 50 degree angle of attack, which was achieved on the fourth AOA test mission. The aircraft has an emergency spin chute installed to help return the aircraft to controlled flight in the case that AOA test push the aircraft out of flight control limits.）

2012年11月3日，美国加利福尼亚州爱德华兹空军基地，美国空军 F-35A“闪电”II 常规起降型系统发展与验证机开始进入大迎角试飞阶段，将分架次从20度逐步增加至设计限制的50度。（EDWARDS AIR FORCE BASE, Calif., November 19, 2012 – An F-35A Lightning II conventional takeoff and landing (CTOL) aircraft rapidly expanded its high angle of attack (AOA) test envelope to its 50 degree limit in only four flights during recent flight testing here. F-35A test aircraft are limited to AOAs of 20 degrees until their controllability is proven at a higher AOA limit of 50 degrees. The ability to rapidly progress to the maximum AOA indicates a sound aerodynamic and flight control system design. High AOA testing will continue on the F-35A for several months testing the capabilities of all design loadings and the flight control system.）

2012年5月9日，埃格林空军基地 F-35A 进行第500架次飞行，由埃里克·史密斯中校驾驶。（Lt Col Eric Smith flight in F-35 at Eglin Air Force Base，Eglin Completes 500TH F-35 Sortie.）

2013年5月28日，美国马里兰州帕塔克森特河海军航空站，英国飞行员吉姆·斯科菲尔德首次驾驶 F-35B“闪电”II 系统发展与验证机进行垂直降落试验。（Squadron Leader Jim Schofield became the first Royal Air Force pilot to complete a vertical landing of a Lockheed Martin F-35B short takeoff and vertical landing (STOVL) Lightning II on May 28, 2013. Following the flight, Schofield commented on the F-35B’s handling capabilities.）