Similar to YC-14_(航空機)

40 (number)

70 (number)

100

400 (number)

700 (number)

1000 (number)

1,000,000

Douglas YOA-5

Boeing XB-15

Boeing XB-38 Flying Fortress

Boeing XB-39 Superfortress

Boeing YB-40 Flying Fortress

Boeing C-32

Boeing C-40 Clipper

Boeing C-97 Stratofreighter

Boeing C-108 Flying Fortress

Boeing C-135 Stratolifter

Boeing C-137 Stratoliner

Boeing XF6B

Boeing XF8B

Boeing KC-46 Pegasus

Boeing KC-135 Stratotanker

Boeing KC-767

Boeing XP-4

Boeing XP-7

Boeing XP-8

Boeing XP-9