Oh yes I forgot there was a COAC book. Thanks for that. What is HIWG?
I'm all for Mongoose Trav and have played, but still prefer my beloved CT.
HIWG - History of the Imperium Working Group. The goal was to develop writers for Traveller. Lots of folks working the Rebellion Timeline & adding background. They also published Tiffany Star
"Newletter supporting the HISTORY OF THE IMPERIUM WORKING GROUP (HIWG) in developing the future setting of the Imperium,
Six issues come with annual membership to HIWG. Authors and artists include Marc Miller, Jeff Swycaffer, Ed Edwards, John Meyers, Gregg Giles, Craig Sheeley, Tom Peters, and Phil Morrissey. Mike Mikesh, editor."
It has a lot of information - Some of the material made it's way into the OTU (COACC, Wet Navy, the concept of booster plants for craft design). Some of it would have (Begining information for Black Duke), some of it should have made it, like Clayton Bush's Imperial Navy Handbook. The quality, to be charitable, was wildly uneven, but there are many, many diamonds in the rough, if you just dig enough.
There is lots & lots of information in it, but the disc has no discernable filing system, so everytime I dive into it, I add to an Index I am building for it.
There was a website where you could order it, but I don't believe anyone has responded to email over the past 5 or 6 years.