Mutt,
Terrorism Act 2000 Schedule 7 Paragraph 12
(3) Where an aircraft is employed on a journey to which this paragraph applies otherwise than to carry passengers for reward, the captain of the aircraft shall not permit it to call at or leave a port in Great Britain or Northern Ireland unless-
(a) the port is a designated port, or
(b) he gives at least 12 hours' notice in writing to a constable for the police area in which the port is situated (or, where the port is in Northern Ireland, to a member of the Royal Ulster Constabulary).
You're not seeking 'permission' just giving them notice, you don't need to wait for a reply from SB, just ensure the 12 hours is complied with. If they want to stop you going they'd have to come out to the field and detain you. Failure to comply with 12(3) is an offence... etc etc etc
Regards
FM
