Ah - so that's what they mean -

I have enjoyed reading the acronyms - figuring out what they mean - learning the airport codes - it's all rather like a puzzle and eventually the pieces do fall into place. I've run across some incredibly helpful members and conversely, even found myself being flamed once for asking what I thought was an okay question. Obviously it wasn't okay to that particular person. (First layer of thick skin applied at that point.) There are a couple of terms which may pop up that are not in the 'Glossary' but I'm sure their meanings will present themselves in due time.... sort of like DW and DH.