I think this is an unintended edge case resulting from the combination of the BB and BC classification rules.
Using the 1935 start, this is perfectly legal:
- 01.png (85.19 KiB) Viewed 600 times
But increase the belt by half an inch (to 12.5") but make no other changes and:
- 02.png (2.06 KiB) Viewed 600 times
Seems a bit odd. If the 6 guns were in three turrets instead of 2 then it would be a legal BB with 12.5" of belt armour, or a legal BC with three turrets, 12.5" of belt or more and speed of 31 knots or greater.
It's just the 2 turret ship with more than 12" belt that is illegal. Not a big deal at the end of the day but it does mean you cannot build battlecruisers along the lines of the H3 design from the studies that ultimately led to
Nelson.
