Evening Graeme,
So maybe a Jap? Kawanishi N1K?
I was going to say that this was one of the aircraft made by this manufacturer that didn't get a wet bottom (although it's first iteration was a mid-wing floatplane)!
By George, that'll do me mate, it is actually a Kawanishi N1K2-J
Shiden (
Violet Lightning), hence my gone in a flash
Noyade as control