What is this Aircraft Carrier Doing in the Bay?

"Hydrofoil One to Orange control."

"Go ahead Hydrofoil One."

"Hydrofoil One. I am heading for Brixham. Could you get on to the War department. They have parked a bloody great aircraft carrier right on line of route. Looks like I am going to be late again."

Seriously though, we often get ships sheltering in the bay in bad weather or just waiting for instructions, but this aircraft carrier is a first as far as I can remember. Maybe the government have secret information about a revolution about to start on the south coast and just want to be ready.