I think the Lexicon that Chris has would be a great resource. I would certainly be interested if it were reprinted.
My copy of the Air Ministry A.1.12 Manual that Larry mentioned is comb-bound. I got it on eBay, about 10 years ago.
FYI, two other publications I've found useful:
- "Luftfahrt Definitionen" by Roderich Cescotti, Motorbuch Verlag, 1993, 298 pages, ISBN 3-613-01167-0
(He also authored "Bombers and Reconnaissance Aircraft - 1935 to the Present" in the "The History of German Aviation" series.)
- "German Military Dictionary", a Lancer Militaria reprint of a 1944 War Department publication, 448 pages, ISBN 0-935856-06-4
Regards,
Leon Venter