From one of our readers, Grimmace! Thanks!
This is the ‘N 3’ British battleship from the early 1920’s. It was armed with 9 main 18 inch(457mm) guns in three turrets firing 2837lb shell. Secondaries were 16-6 inch(152mm) guns in 8 turrets. It had decent AA already from 1922, but these can be upgraded for the game. It had a 13.25in-15in belt and was designed to do 23 knots.
Book: All the world’s battleships, Ian Sturton