Modifications to this production-block

Enclosed radio gun compartment with K-5 mount, Cheyenne tail gun position with N-8 sight, engine fire extinguisher system, five modified oxygen regulators, additional stowage in liferaft compartment, outside release handles for liferaft, parachute static lins at exits and hot air heating added. Provisions for SCR-515 radio deleted. Lorenz blind approach equipment deleted from 44-6376 and G-1 oxygen signal deleted from 44-6401.

B-17 Flying Fortresses in this production-block

S/NUnitFateManufacturer
44-6251
44-6252
    44-6253
    44-6254
    44-6255
    44-6256
    44-6257 / Devil’s Bouquet
    44-6258
    44-6259
    44-6260
    44-6261 / Never Satisfied
    44-6262 / Miss Pan-Am
    44-6263
    44-6264
      44-6265
      44-6266
      44-6267
      44-6268
      44-6269
      44-6270
      44-6271 / Magnificaent Malfunction
      44-6272
      44-6273
      44-6274
      44-6275