I should have looked at my flottille.cfg file first.
Flotilla2=904
TO2=940
NbStartingDate2=7
NbDate2=7
Emblem2=data/Emblems/SubEmblems/Flotillas/7th flotilla.tga
NbBases2=4
Base2_0=765;Königsberg
Date2_0_0=1939
Month2_0_0=7
Date2_0_1=1939
Month2_0_1=8
DeparturePointLong2_0=2446551.000000
DeparturePointLat2_0=6560480.000000
Heading2_0=335.051331
Base2_1=750;Kiel
Date2_1_0=1939
Month2_1_0=9
Date2_1_1=1940
Month2_1_1=8
Try this out and see what happens.