The Air Force use TLA's, you will note that DG is missing a letter. Not good enough I am afraid. The "T" is taken to be Three as a norm.
Indeed as BB has intimated. The Air Force (RNZAF) and the other two Services (NZA & RNZN) all use the 'Three Letter Acronym' (TLA) in everyday use. If I Remember Correctly (IIRC) TLAs have been around as long as the Defence Force (NZDF). In My Honest Opinion (IMHO) I think they have a place although the other party equally needs to be able to understand them ;D
A few good sites below including a 'Acronym Generator' - "Excellent, Smithers... Excellent"
There are two that have been upgraded to the LEP standard. In July, there were 2 getting the upgrade at Woodbourne. And NZ7002 was suppose to go do to Woobourne to get upgraded at the end of July. I believe I saw it heading that way on the 29th/30th of July. But it was pretty bloody low, not the kind of flying you would expect for a low distance "routine" trip.
Meanwhile, our last ‘legacy’ C-130 is on its third round trip this week to Samoa to redeploy No.3 Squadron Iroquois and personnel after their successful Exercise TROPIC ASTRA*, while a C-130 LEP is in Cold Lake, Canada participating in Exercise MAPLE FLAG. That exercise will provide the final test for the latest version of software, but more importantly ensure both air and ground crews are prepared with the necessary skills for their next deployment into Afghanistan. www.airforce.mil.nz/downloads/html/afn/afn138.html