Type Werk.Nr Registration History
G31 ba J3000 D-1073, VH-URQ The prototype, G31 ba, c/n 3000, flew in early September 1926. The original Junkers L5 engines proved to be
underpowered and the central engine was replaced by a BMW V1. The open cockpit for the crew was a feature of the aircraft. This machine, along with the last three constructed, went to New Guinea where it was initially operated by Bulolo Gold Dredging & CO and then by Guinea Airways as VH-URQ.,Jun. 34 to Apr.42, named 'Pat', destroyed during air raid at Bulolo
G31 ce J3001 D-1137 1926 , Lufthansa Jun. 27
G31 de J3002 D-1310, D-ADIN Lufthansa, , Feb. 28, named 'Herrmann Köhl'  . RLM, D-ADIN, 1935,
G31 de J3003 A-46, OE-LAG, ÖLAG, , Mai. 28, named 'Österreich', 1000th Junkers aircraft, modified to fe in 1931 . Lufthansa, taken over 1938, not registered
G31 de J3004 D-1427 Lufthansa, , Jul. 28 to Sep.28, named 'Deutschland', exhibited at ILA. Crashed and burst into flames near Arnsberg. All occupants were evacuated safely but aircraft christened 'Deutschland' was destroyed by fire.
G31 fi J3005 D-1473 Lufthansa, , Okt. 28 to Dez.28, named 'Rheinland', crashed at the Colbitz-Letzlinger Heide in a snow storm. Pilot Capt. Heinrich Doerr (41) killed.
G31 fi J3006 D-1523, D-ADAR Lufthansa, , 1929, named 'Nordmark', modified to fo in May 1932 . RLM,  1935 to Okt.38, cancelled
G31 fi J3007 D-1770, D-ABAR Lufthansa, , Nov. 29, named 'Preußen', modified to fo in 1931 . RLM, 1936 to Jul.38, cancelled
G31 fo J3008 D-1722, D-ABIL Lufthansa, , June. 29, named 'Brandenburg' . RLM, 1936 to Mai.36, crashed following midair collision with Ju52 D-APUT
G31 fi J3009 D-1786, D-ADUR Lufthansa, , April. 30, named 'Westmark', modified to fo in 1931. RLM, 1935 to Apr.36, scrapped
G31 go J3010 VH-UOW, A44-1 Guinea Airways, registered VH-UOW 10/06/31 to 30/01/42. Impressed by the RAAF on 30/01/42 under requisition 9024. It survived an air-raid on 21/01/42 at Bulolo when 3 other aircraft were destroyed (VH-URQ, UOU and UOV) as it was flying at the time. To 34 Sqn 17/10/42. Used by 36 Sqn to deliver refrigerators to Darwin 19/10/42 and to return with wounded to Vic.  Pilot was Flg Officer J.L.Whiteman and Co-Pilot was Pilot Officer Peter Lavarack. Third engine had a valve drop and was blanked off at Cootamundra by RAAF Engineering staff. Arrived at Laverton for repairs. P/O Peter Lavarack took off on test flight 31/10/42, but only two engines developed full power. Aircraft crashed, continued off the strip and collided with the visiting Minister of Air's car, destroying the car and irreparabley damaging the aircraft.
G31 go J3011 VH-UOU Guinea Airways , Okt. 30 to Jan.42, named 'Bulolo I Paul', operated for Bululo Gold Dredging Co.. Destroyed during airraid at Bulolo
G31 go J3012 VH-UOV Guinea Airways  Okt. 30 to Jan.42, named 'Bulolo 2 Peter', operated for Bululo Gold Dredging + Co.. Destroyed during airraid at Bulolo