Still the search goes on! I've raided the Glasgow Uni Archives for the plans for Archangel, loads of photos of the detail bits and just waiting for the large scans. I also spent a day in Orkney Archives in Kirkwall and discovered, in "The Blast" which was the wartime newssheet, that out of 65 Regiment RA, 181 and 183 Batteries were good at soccer and 182, my dads, was .......
There was, of course, no mention I could find of the loss of the ship. Couldn't get to Scapa Flow museum at Lyness because all the small ferries had been cancelled due to the storm so no access to their archives. Luckily the Scapa distillery, my favourite, along with the Orkney gin distillery, for SWMBO, helped........just a little bit
I need now to find where and if any of the logbooks reside and also whether there is any documentation on the refit carried out in Clydebank, possibly at John Brown since they built her in 1910. In the meantime the best illustration of what could be a valid armament fit is in this photo of the troopship Amsterdam, also an LNER ferry but built some 20 years later. Dave (dodes) snagged this one out of the ether and I'm very grateful to him for the first decent pic I've seen. A gun-tub aft of the after funnel, probably 20mm, and smaller pointy bits at 45 degrees skyward elsewhere.
Cheers
Tony