Re:Help needed in figuring out these Abbeviations ?
Just looking through these, they would appear to be disposition codes which relate to the fate of the aircraft. I will make some guesses on these to start the ball rolling, but you can probably figure them out for yourself.
DT is probably Ditched, -C would be the English Channel, -N the North Sea,
-Portugal is obvious. A may be the Atlantic.
The CL codes are probably Crash Landing , F (France), H (Holland) G(Gemany) E(England) B(Belgium) etc.
CR is probably Crashed with similar country/location codes. SAL is salvaged. RT is probably returned.
FL is probably? forced landing.
WO is Written Off.
FR may be Failed to Return. That may have been the first notation on a plane then, as information became available, the additional notations were added.
You can probably figure all these out by going back to the original serial numbers of a few of the aircraft and checking their fates on AviationArchaeology.com, Fold3.com, etc.