XN293, with regard to your query about the round holes in the side of the fuselage, are you refering to the hole all the way through the rear fuselage through which you fit the tye-down bar for high power ground runs?

Could well be… I’ve not managed to find a picture that’s close up enough to tell. However, I’m fairly sure these are specific to Sea Hurricanes. Here’s what I mean… See the mark between the ‘7’ and the roundel on the Shuttleworth hurri and the ‘spigot’ thing on the plan above the arrestor hook – I doubt this goes all the way through as it would intefere with the hook jack, but I could be wrong. Over to you…