Order of landing
13.—(1) An aircraft landing or on its final approach to land shall have the right-of-way over other aircraft in flight or on the ground or water.
(2) An aircraft shall not overtake or cut in front of another aircraft on its final approach to land.
(3) If an air traffic control unit has communicated to any aircraft an order of priority for landing, the aircraft shall approach to land in that order.
(4) If the commander of an aircraft is aware that another aircraft is making an emergency landing, he shall give way to that aircraft.
(5) If the commander gives way in the circumstances referred to in paragraph (4) at night then, notwithstanding that he may have previously received permission to land, he shall not attempt to land until he has received further permission to do so.
(6) Subject to paragraphs (2), (3) and (4), if two or more flying machines, gliders or airships are approaching any place for the purpose of landing, the aircraft at the lower altitude shall have the right-of-way.