Modifications to this production-block

Stowage positions for extra SCR-274N radio units added from 42-98015. Reduced number of supercharger fixing bolts. Ball turret disconnect switch added.

B-17 Flying Fortresses in this production-block

S/NUnitFateManufacturer
42-97986
    42-97987
    42-97988 / Flagship
    42-97989
    42-97990
      42-97991
      42-97992 / Hap Hazard aka Trouble Buggy
      42-97993
      42-97994
      42-97995
      42-97996
      42-97997 / Honorable Patches
      42-97998 / Roanoke Magician
      42-97999
      42-98000
      42-98001
      42-98002
          42-98003
          42-98004
          42-98005
          42-98006 / The Old Yard Dog
          42-98007 / Sleepy Time Gal
          42-98008 / American Beauty
          42-98009
          42-98010