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within the immediately preceding 90 days carried out as pilot in command not less than 5 take-offs and 5 landings at a time when the depression of the centre of the sun was not less than 12 degrees below the horizon;
(c) he shall not, unless his licence includes an instrument rating, fly any such acro- plane of which the maximum total weight authorized exceeds 5,000 lb. on any flight for the purpose of public transport, except a fight beginning and ending at the same aerodrome and not extending beyond 25 nautical miles from that aerodrome:
() he shall not fly such an aeroplane on a flight for the purpose of public trans- port if its maximum total weight authorized exceeds 12,500 lb;
(i) co-pilot of any acroplane of a type specified in Part 1 or Part 2 of such aircraft rating when the aeroplane is engaged in a flight for any purpose whatsoever.
Senior Commercial Pilor's Licence (Aeroplanes).
Minimum age-21 years.
Maximum Period of Validity-5 years. Privileges: In addition to the privileges given above for the Private Pilot's Licence (Aeroplanes), the holder of the licence shall be entitled to fly as-
(i) pilot in command of any acroplane of a type specified in Part 1 of the aircraft rating included in the licence when the acroplane is engaged in a flight for any purpose whatsoever :
Provided that-
(a) he shall not, unless his licence includes an instrument rating, fly such an aero- plane on any scheduled journey: (b) he shall not fly such an aeroplane at night on a flight on which any passenger is carried unless bis licence includes an instrument rating or he has within the immediately preceding 90 days carried out as pilot in command not less than
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S take-offs and 5 landings at a time when the depression of the centre of the sun was not less than 12 degrees below the horizon:
(c) he shall not, unless his licence includes an instrument rating, fly any such aero- plane of which the maximum total weight authorized exceeds 5,000 lb. on any fight for the purpose of public transport, except a flight beginning and ending at the same aerodrome and not extending beyond 25 nautical miles from that aerodrome;
(d) he shall not fly such an aeroplane on a flight for the purpose of public transport if its maximum total weight authorized exceeds 45,000 lb.;
(f) co-pilot of any aeroplane of a type specified in Part 1 or Part 2 of such aircraft rating when the aeroplane is engaged in a flight for any purpose whatsoever. Airline Transport Pilor's Licence (Aeroplanes).
Minimum age-21 years.
Maximum Period of Validity-5 years. Privileges: In addition to the privileges given above for the Private Pilot's Licence (Aeroplanes), the holder of the licence shall be entitled to fly as- (1) pilot in command of any aeroplane of a type specified in Part 1 of the aircraft rating included in the licence when the aeroplane is engaged in a flight for any purpose what-
soever:
Provided that-
(2) he shall not, unless his licence includes an instrument rating, By such an aero- plane on any scheduled journey: (b) he shall not fly such an aeroplane at night on a flight on which any pas- senger is carried unless his licence includes an instrument rating or he has within the immediately preceding 90 days carried out as pilot in command not less than 5 take-offs and 5 landings at a time when the depression of the