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(b) aeroplanes of which the maximum total weight authorised does not exceed 2730 kg engaged on either:
(i) scheduled journeys for the purpose of the public transport of passengers;
(ii) flights for the purpose of the public transport of passengers beginning and ending at the same aerodrome;
(iii) flights 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) flights for the purpose of the public transport of passengers at night;