3 Prototypes
50 series 100/17 - 149/17
177 built until Nov. 1918
Total 227 planes built
Type Werk.Nr Registration History
425/17 First flight Jan. 28 1917
426/17
427/17

(J0009), J4 (J-1) V1 JUNKERS, 425/17, Jan. 17, J4 prototype  (J0010), J4 (J-1) V2
JUNKERS, 426/17, 1917  (J0011), J4 (J-1) V3
JUNKERS, 427/17, 1917  (J0012 to 0061), J4 (J-1)
IDFLIEG, 100/17 to 149/17, Aug. 17, first production batch from IFA Dessau, into service August 1917
(J0062 to 0161), J4 (J-1)
IDFLIEG, 800/17 to 899/17, 1918, second production batch of 100 aircraft, delivered in 1918
(J0162 to 0171), J4 (J-1)
IDFLIEG, 576/18 to 585/18, 1918, third production batch, 9 aircraft
(J0163 (also mentioned as sn252)), J4 (J-1)  MUSEUM: National Aeronautical Collection, 586/18, ??.??.??, stored at Rockcliffe, currently not on display
IDFLIEG, 586/18, Jul. 18, third production batch  RCAF, 586/18, Mai. 19, captured by Allied Forces, transfered to Canada
(J0164 to 0193), J4 (J-1)
IDFLIEG, 587/18 to 598/18, Okt. 18, thrid production batch, delivered till October 1918
(J0194 to 0211), J4 (J-1)
IDFLIEG, 599/18 to 615/18, Mrz. 19, third production batch, delivered between 10.18 and 03.19
(J0212 to 0218), J4 (J-1)
IDFLIEG, 716/18 to 722/18, Okt. 18, fourth production batch, delivered until October 1918
(J0219 to 0221), J4 (J-1)
IDFLIEG, 723/18 to 725/18, Mrz. 19, fourth production batch, delivered between 10.18 and 03.19
(J0222 to 0245), J4 (J-1)
IDFLIEG, 726/18 to 749/18, Mrz. 19, fifth production batch. delivered between 10.18 and 03.19
(J0246 to 0302), J4 (J-1)
IDFLIEG, 750/18 to 805/18, ??.??.??, fifth production batch, cancelled not built
J????, J4
FLIEGERTRUPPE, 816/17, 1917, used at Doeberitz for weapon tests