Paragraph 9 Converging
(1)
Subject to paragraphs (2) and (3) and to rules 10 and 11, aircraft in the air shall give way to other, converging aircraft as follows—
(a)
flying machines shall give way to airships, gliders and balloons;
(b)
airships shall give way to gliders and balloons;
(c)
gliders shall give way to balloons.
(2)
Mechanically driven aircraft shall give way to aircraft which are towing other aircraft or objects.
(3)
Subject to paragraph (2), when two aircraft are converging in the air at approximately the same altitude, the aircraft which has the other on its right shall give way.