Three Wire (your #7312),
What an enormous treasure trove you've given me ! Already I've found out important things I didn't know before (such as the RAAF having a Chemical Defence Research unit of their own, dropping gas, using A-31s). And the RAAF having a hard time with them in the early days.
I'll analyse this and put it comments (but it'll take a long time - I worked up to entry 675 tonight, then went to the end, only to find that there are 4,000 + more to go).
Meanwhile many thanks for the link - it'll keep me busy for weeks !
Danny.