Anyone eagle-eyed among you may have spotted the fatal flaw in Whopity's quote, it only refers to a/c with a mauw exceeding 2730 kg.
The bit he missed out was para 2 (b)
(b) any aeroplane of which the maximum total weight authorised does not exceed
2730 kg flying on a flight:
(i) which is a scheduled journey for the purpose of the public transport of
passengers;
(ii) for the purpose of the public transport of passengers beginning and ending
at the same aerodrome;
(iii) for the purpose of:
(aa) instruction in flying given to any person for the purpose of becoming
qualified for the grant of a pilot's licence or the inclusion of an aircraft
rating, a night rating or a night qualification in a licence; or
(bb) a flying test in respect of the grant of a pilot's licence or the inclusion
of an aircraft rating, a night rating or a night qualification in a licence; or
(iv) for the purpose of the public transport of passengers at night;