洛克希德-马丁公司为英国生产的首架 F-35B（BK-1）战机在得克萨斯州沃思堡首飞，此次试飞中，BK-1号以短距起飞方式升空，常规方式降落，整个试飞时间为45分钟。（The first flight for the U.K.’s first F-35, known as BK-1, took place on April 13, 2012. BK-1 is also the first international F-35.）

洛克希德-马丁公司在得克萨斯州沃思堡工厂完成英国首架 F-35B（BK-1）战机总装。（First International F-35 Rolls Out of the Factory.The first international F-35 Lightning II rolls out of the factory on Nov. 20, 2011. The United Kingdom Ministry of Defence will use the short takeoff/vertical landing (STOVL) jet, known as BK-1, for training and operational tests.）

洛克希德-马丁公司在得克萨斯州沃思堡向英国交付首架 F-35B（BK-1）战机。（On July 19, 2012, the United Kingdom took delivery of its first F-35 Lightning II jet during a ceremony at Lockheed Martin in Fort Worth, Texas. The jet, BK-1, is an F-35B STOVL model. Here BK-1 readies for its inaugural flight with a Royal Air Force pilot at the helm.BK ceremony BK-1 flight.）

2012年6月14日，美国海军陆战队BF-02号 F-35B 在华盛顿特区进行不对称外挂测试。（BF-02 Flight 197 conducted Asymmetric External Stores Testing June 14 with Cmdr. Eric Buus as the pilot.）

2016年1月14日，F-35B在爱德华兹空军基地进行发动机维修试车。（F-35B Engine Test Runs at Edwards AFB，An F-35B during a maintenance engine run at Edwards Air Force Base, California, Jan.14, 2016.）

陆战队 VMFA-121“绿衣骑士”战斗攻击机中队 F-35B 与加油机伴飞在圣迭戈海岸。（An F-35B Lightning II with Marine Fighter Attack Squadron (VMFA) 121 “Green Knights” flies alongside a KC-130J Super Hercules with Marine Aerial Refueler Transport Squadron (VMGR) 352 over Southern California, March 8. The two F-35Bs completed additional training after successfully conducting an aerial refuel with VMGR-352.）

VMFAT-501“军阀”训练中队一架 F-35B 联合攻击战斗机在南卡罗来纳州博福特海军陆战队航空站准备起飞。（An F-35B Lightning II prepares to take-off aboard Marine Corps Air Station Beaufort March 8. The take-off was performed as part of training operations conducted to further enhance the pilot’s capabilities. The F-35B is the short take-off and vertical landing variant of the jet which uses a jet propulsion system to execute the landing. The aircraft is with Marine Fighter Attack Training Squadron 501.）

VMFAT-501“军阀”训练中队一架 F-35B 联合攻击战斗机在南卡罗来纳州博福特海军陆战队航空站垂降。（An F-35B Lightning II performs a vertical landing aboard Marine Corps Air Station Beaufort March 8. The landing was performed as part of training operations conducted to further enhance the pilot’s capabilities. The F-35B is the short take-off and vertical landing variant of the jet which uses a jet propulsion system to execute the landing. The aircraft is with Marine Fighter Attack Training Squadron 501.）

VMFAT-501“军阀”训练中队一架 F-35B 联合攻击战斗机在南卡罗来纳州博福特海军陆战队航空站垂降。（An F-35B Lightning II performs a vertical landing aboard Marine Corps Air Station Beaufort. The F-35B is the short takeoff and vertical landing variant of the jet which uses a jet propulsion system to execute the landing. The aircraft is with Marine Fighter Attack Training Squadron 501.）

VMFAT-501“军阀”训练中队一架 F-35B 联合攻击战斗机在南卡罗来纳州博福特海军陆战队航空站准备起飞。（An F-35B Lightning II prepares to take-off aboard Marine Corps Air Station Beaufort March 8. The take-off was performed as part of training operations conducted to further enhance the pilot’s capabilities. The F-35B is the short take-off and vertical landing variant of the jet which uses a jet propulsion system to execute the landing. The aircraft is with Marine Fighter Attack Training Squadron 501.）