Air War WW2 Portal

The first 24 AT11 were ordered by the Dutch for their Naval Air Services in the East Indies. Original serials were A1 to A24. After surrender of the East Indies the aircraft were confiscated by the Americans and they got fake serials by adding the fiscal year number '42' to the manufacturers' construction number. So c/n became 'serial' 42-3057 and so on.
During the service the aircraft flew with these 'fake-serials'. When the aircraft were no longer needed they were passed to the USAAF where they got official serials. 44-72005 and on.

In 1943 the Dutch Flying School lent a further six AT11s from the USAAF to speed up the training courses.

'Serial'   US-serial  Arrival     Departed      Reason
                      Jackson AAB Jackson AAB

42-3057    44-72005   may 1942    20-02-1944
42-3058    44-72006   may 1942    20-02-1944
42-3059    44-72007   may 1942    20-02-1944
42-3060    44-72008   may 1942    20-02-1944
42-3061    44-72009   may 1942    19-02-1944
42-3062    44-72010   may 1942    19-02-1944
42-3063    44-72011   may 1942    20-02-1944
42-3064    44-72012   may 1942    20-02-1944
42-3065    44-72013   may 1942    19-02-1944
42-3066    44-72014   may 1942    20-02-1944
42-3067    no further details
42-3068    no further details
42-3069    44-72015   may 1942    20-02-1944
42-3070    44-72016   may 1942    20-02-1944
42-3071    44-72017   may 1942    19-02-1944
42-3072    44-72018   may 1942    20-02-1944
42-3073    44-72019   may 1942    20-02-1944
42-3074    44-72020   may 1942    20-02-1944
42-3075    44-72021   may 1942    20-02-1944
42-3076    44-72022   may 1942    20-02-1944
42-3077    44-72023   may 1942    20-02-1944
42-3078    44-72024   may 1942    20-02-1944
42-3079    44-72025   may 1942    20-02-1944
42-3080    44-72026   may 1942    20-02-1944

Six arcraft were lent from the USAAF in 1943:

US-serial  Arrival     Departed      Reason
           Jackson AAB Jackson AAB

41-9438    01-06-1943  ----------    crashlanded 27-07-43
41-9489    01-06-1943  31-08-1943    rtd.USAAF 
                                     Goodfellow Field, TX.
41-9491    01-06-1943  23-10-1943    rtd.USAAF 
                                     Goodfellow Field, TX.
41-9502    01-06-1943  15-12-1943    rtd.USAAF 
                                     Goodfellow Field, TX.
41-27468   16-07-1943  ----------    rtd.USAAF Robbins Field.
41-27489   01-06-1943  13-09-1943    rtd.USAAF Turner Field.