C. One altitude flight, during which a height of at least 100 metres (328 feet) above the point of departure must be attained; the descent to be made from that height with the motor cut off. The landing must be made in view of the observers, without re-starting the motor.
The rules drafted by the Club to govern these flights are set forth herewith:—
The candidate must be alone in the aircraft during the tests.
The course on which the aviator accomplishes tests A and B must be marked out by two posts situated not more than 500 metres (547 yards) apart.
The turns round the posts must be made alternately to the right and to the left, so that the flights will consist of an uninterrupted series of figures of eight.
The distance flown will be reckoned as if in a straight line between the two posts.
The alighting after the two distance flights in tests A and B shall be made:—
(a) By stopping the motor at or before the moment of touching the ground.
(b) By bringing the aircraft to rest not more than 50 metres (164 feet) from a point indicated previously to the candidate.
All alightings must be made in a normal manner, and the observers must report any irregularity.