Barracuda II - Avenger - Martlet / Wildcat

Greetings all.

I've been given a set of photos taken during WWII by a sailor posted to Orkney in WWII, most likely shots from 1945 or at least that end of the war.

The majority of the photos are devoid of aircraft but a few are worth posting here for general interest, particularly the Barracuda II.

Can anyone ID the Barracuda from the code (which I think says 'ACH' or 'AC8'? Hoping someone with a copy of Sturtivant's FAA book will track it down...)

Although the bulk of the photos appear to be taken around Hatston (HMS Sparrowhawk, near Kirkwall, Orkney) I am almost certain the Barracuda pic is NOT taken in Orkney at all. The scenery does not fit. Any ideas? Hoping the plane's history will give us a clue. The person I got the photos from has applied for the RN service record of the gent who served in Orkney and (might) have taken the photos but will take a while yet.

The image with the Avenger II (?) and Wildcat / Martlet (a Mk VI ?) is a cropped portion of a larger image so quality not so good. There's a tail just visible far left, too. Whassat?

Any thoughts, ID etc most welcome! These are part of a set soon to appear in a display at Orkney's fabulous Fossil and Heritage Centre in Burray and they've asked me to interpret the batch.

With that in mind, please don't share this beyond the forum for now. Ta!



Thanks!
Andrew