Douglas built aircraft numbered from 2106984 and including 2107000s, 46000s, and  485000s.

Vega (Lockheed) built aircraft numbered from 297436 and including 298000s, 48000s, and 485000s.
 

Type	Manufacturer	Serial No # Range
Y1B-17	Boeing	36-149/36-161
Y1B-17A	Boeing	37-369
B-17B	Boeing	38-211/35-220
B-17B	Boeing	38-221/38-223
B-17B	Boeing	38-258/38-270
B-17B	Boeing	38-583/38-584
B-17B	Boeing	38-610
B-17B	Boeing	39-1/39-10
B-17C	Boeing	40-2042/40-2079
B-17D	Boeing	40-3059/40-3100
B-17E	Boeing	41-2393/41-2669
B-17E	Boeing	41-9011/41-9245
B-7F-1	Boeing	41-24340/41-24389
B-17F-5	Boeing	41-24390/41-24439
B-17F-10	Boeing	41-24440/41-24489
B-17F-15	Boeing	41-24490/41-24503
B-17F-20	Boeing	41-24504/41-24539
B-17F-25	Boeing	41-24540/41-24584
B-17F-27	Boeing	41-24585/41-24639
B-17F-1	Douglas	42-2964/42-2966
B-17F-5	Douglas	42-2967/42-2979
B-17F-10	Douglas	42-2979/42-3003
B-17F-15	Douglas	42-3004/42-3038
B-17F-20	Douglas	42-3039/42-3073
B-17F-25	Douglas	42-3074/42-3148
B-17F-30	Douglas	42-3149/42-3188
B-17F-35	Douglas	42-3189/42-3228
B-17F-40	Douglas	42-3229/42-3283
B-17F-45	Douglas	42-3284/42-3338
B-17F-50	Douglas	42-3339/42-3393
B-17F-55	Douglas	42-3394/42-3422
B-17F-	Douglas	42-3423/42-3448
B-17F-65	Douglas	42-3449/42-3482
B-17F-70	Douglas	42-3483/42-3503
B-17F-75	Douglas	42-3504/42-3562
B-17G-5	Douglas	42-3563
B-17F-30	Boeing	42-5050/42-5078
B-17F-35	Boeing	42-5079/42-5149
B-17F-40	Boeing	42-5150/42-5249
B-17F-45	Boeing	42-5250/42-5349
B-17F-50	Boeing	42-5350/42-5484
B-17F-1	Vega	42-5705/42-5709
Type	Manufacturer	Serial No # Range
B-17F-5	Vega	42-5710/42-5724
B-17F-10	Vega	42-5725/42-5744
B-17F-15	Vega	42-5748/42-5764
B-17F-20	Vega	42-5765/42-5804
B-17F-25	Vega	42-5805/42-5854
B-17F-30	Vega	42-5855/42-5904
B-17F-35	Vega	42-5905/42-5954
B-17F-40	Vega	42-5955/42-6029
B-17F-45	Vega	42-6030/42-6104
B-17F-50	Vega	42-6105/42-6204
B-17F-55	Boeing	42-29467/42-29531
B-17F-60	Boeing	42-29532/42-29631
B-17F-65	Boeing	42-29632/42-29731
B-17F-70	Boeing	42-29732/42-29831
B-17F-75	Boeing	42-29832/42-29931
B-17F-80	Boeing	42-29932/42-30031
B-17F-85	Boeing	42-30032/42-30131
B-17F-90	Boeing	42-30132/42-30231
B-17F-95	Boeing	42-30232/42-30331
B-17F-100	Boeing	42-30332/42-30431
B-17F-105	Boeing	42-30432/42-30531
B-17F-110	Boeing	42-30532/42-30616
B-17F-115	Boeing	42-30617/42-30731
B-17F-120	Boeing	42-30732/42-30831
B-17F-125	Boeing	42-30832/42-30931
B-17F-130	Boeing	42-30932/42-31031
B-17G-1	Boeing	42-31032/42-31131
B-17G-5	Boeing	42-31132/42-31231
B-17G-10	Boeing	42-31232/42-31331
B-17G-15	Boeing	42-31332/42-31431
B-17G-20	Boeing	42-31432/42-31631
B-17G-25	Boeing	42-31632/42-31731
B-17G-30	Boeing	42-31732/42-31931
B-17G-35	Boeing	42-31932/42-32116
B-17F-80	Douglas	42-37714/42-37715
B-17G-10	Douglas	42-37716
B-17F-80	Douglas	42-37717/42-37720
B-17G-10	Douglas	42-37721/42-37803
B-17G-15	Douglas	42-37804/42-37893
B-17G-20	Douglas	42-37894/42-37988
B-17G-25	Douglas	42-37989/42-38083
B-17G-30	Douglas	42-38084/42-38213
Type	Manufacturer	Serial No # Range
B-17G-1	Vega	42-39758/42-39857
B-17G-5	Vega	42-39858/42-39957
B-17G-10	Vega	42-39958/42-40057
B-17G-40	Boeing	42-97058/42-97172
B-17G-45	Boeing	42-97173/42-97407
B-17G-15	Vega	42-97436/42-97535
B-17G-20	Vega	42-97536/42-97635
B-17G-25	Vega	42-97636/42-97735
B-17G-30	Vega	42-97736/42-97835
B-17G-35	Vega	42-97836/42-97935
B-17G-40	Vega	42-97936/42-98035
B-17G-50	Boeing	42-102379/42-102543
B-17G-55	Boeing	42-102544/42-102743
B-17G-60	Boeing	42-102744/42-102978
B-17G-35	Douglas	42-106984/42-107233
B-17G-65	Boeing	43-37509/43-37673
B-17G-70	Boeing	43-37674/43-37873
B-17G-75	Boeing	43-37874/43-38073
B-17G-80	Boeing	43-38074/43-38273
B-17G-85	Boeing	43-38274/43-38473
B-17G-90	Boeing	43-38474/43-38673
B-17G-95	Boeing	43-38674/43-38873
B-17G-100	Boeing	43-38874/43-39073
B-17G-105	Boeing	43-39074/43-39273
B-17G-110	Boeing	43-39274/43-39508
B-17G-40	Douglas	44-6001/44-6125
B-17G-45	Douglas	44-6126/44-6250
B-17G-50	Douglas	44-6251/44-6500
B-17G-55	Douglas	44-6501/44-6625
B-17G-60	Douglas	44-6626/44-6750
B-17G-65	Douglas	44-6751/44-6875
B-17G-70	Douglas	44-6876/44-7000
B-17G-45	Vega	44-8001/44-8100
B-17G-50	Vega	44-8101/44-8200
B-17G-55	Vega	44-8201/44-8300
B-17G-60	Vega	44-8301/44-8400
B-17G-65	Vega	44-8401/44-8500
B-17G-70	Vega	44-8501/44-8600
B-17G-75	Vega	44-8601/44-8700
B-17G-80	Vega	44-8701/44-8800
B-17G-85	Vega	44-8801/44-8900
B-17G-90	Vega	44-8901/44-9000
Type	Manufacturer	Serial No # Range
B-17G-75	Douglas	44-83236/44-83360
B-17G-80	Douglas	44-83361/44-83485
B-17G-85	Douglas	44-83486/44-83585
B-17G-90	Douglas	44-83586/44-83685
B-17G-95	Douglas	44-83686/44-83863
B-17G-95	Douglas	44-83864/44-83885
B-17G-95	Vega	44-85492/44-85591
B-17G-100	Vega	44-85592/44-85691
B-17G-105	Vega	44-85692/44-85791
B-17G-110	Vega	44-85792/44-85841
The manufacturer of the following B-17's is unknown. It assumed that those manufactured prior to 1942 were made by The Boeing Aircraft Company....pw

36-149/36161

37-369

38-211/38-223

38-258/38-270

38-583/38-584

38-610

39-1/39-10

40-2042/402079

40-3059/40/3100

41-2393/41-2669

41-9011/41-9245

41-23340/41-24639

42-2964/423563

42-5050/42-5484

42-5705/42-6204

42-29467/42-32116

42-37714/42-38213

42-39758/42-40057

42-97058/42-97407

42-97436/42-98035

42-102379/42-102978

42-106984/42-107233

43-37590/43-39508

44-6001/44-7000

44-8001/44-9000

44-83236/44-83885

44-85492/44-85841

These Productions Blocks and Serial numbers are from B-17 Flying Fortress in Detail & Scale. by A.T. Lloyd & T.D. Moore and were supplied to the 100th by the Polish Historian Michal Mucha of Poznan, Poland.  (pw)

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