B-17 Status: Lost by unknown reason

S/NDateUnitProduction-block
Boeing
B-17F-1-BO: 41-24340 to 41-24389
Boeing
Boeing B-17E: 41-9011 to 41-9245
    Boeing
    Boeing B-17E: 41-9011 to 41-9245
      Boeing
      B-17G-50-BO: 42-102379 to 42-102543
      Boeing
      B-17G-50-BO: 42-102379 to 42-102543
      Boeing
      B-17G-50-BO: 42-102379 to 42-102543
        Boeing
        B-17F-55-BO: 42-29467 to 42-29531
        Boeing
        B-17F-95-BO: 42-30232 to 42-30331
          Boeing
          B-17F-105-BO: 42-30432 to 42-30531
            Boeing
            B-17F-110-BO: 42-30532 to 42-30616
              Boeing
              B-17F-115-BO: 42-30617 to 42-30731
                Boeing
                B-17F-115-BO: 42-30617 to 42-30731
                  Boeing
                  B-17F-115-BO: 42-30617 to 42-30731
                    Boeing
                    B-17F-130-BO: 42-30932 to 42-31031
                    Boeing
                    B-17G-1-BO: 42-31032 to 42-31131
                        Boeing
                        B-17G-15-BO: 42-31332 to 42-31431
                        Boeing
                        B-17G-20-BO: 42-31432 to 42-31631
                        Boeing
                        B-17G-20-BO: 42-31432 to 42-31631
                          Boeing
                          B-17G-35-BO: 42-31932 to 42-32116
                          Boeing
                          B-17G-35-BO: 42-31932 to 42-32116
                          Douglas
                          B-17F-75-DL: 42-3504 to 42-3563
                          B-17G-5-DL: 42-3504 to 42-3563
                          Douglas
                          B-17G-15-DL: 42-37804 to 42-37893
                          Douglas
                          B-17G-15-DL: 42-37804 to 42-37893
                            Lockheed/Vega
                            B-17G-10-VE: 42-39958 to 42-40057
                            Boeing
                            B-17F-35-BO: 42-5079 to 42-5149