237038-1937-Air-Navigation-Colonies-Protectorates-and-Mandated-Territories--Amendment-Order-1937 — Page 14

THE HONG KONG GOVERNMENT GAZETTE, NOVEMBER 12, 1937.

(3) An airship while picking up its moorings, although it shall be considered as being under way and not being under control, shall display only the lights required by paragraph 9 of this Schedule to be displayed until it is finally made fast.

Sound Signals.

12. In fog, mist, falling snow or heavy rainstorm, whether by day or night, an aircraft on the water shall make the following sound signals :-

(a) if not anchored, or moored,, a sound, at intervals of not more than two minutes, consisting of two blasts of about 5 seconds' duration with an interval of obout 1 second between them;

(b) if at anchor or moored, the rapid ringing of an efficient bell or gong for about 5 seconds, at intervals of not more than 1 minute.

SECTION II.

Rules as to ground markings and signalling.

General.

13. The meanings given to the various markings, lights and signals in this Section of this Schedule are reserved to them exclusively.

Ground markings, lights and signals on, and in the vicinity of

aerodromes open to public use.

14. At every land aerodrome open to public use the following requirements shall be complied with:-

(1) The boundaries of the landing area shall, by means of suitable markings, be rendered clearly visible both to aircraft in the air and to aircraft manoeuvring on the landing area;

(2) In addition, a marking in the form of a circle may be placed on the landing area;

(3) All obstructions existing on the landing area shall be clearly marked;

(4) In case part of the landing area should become unfit for use, such part shall be delimited by clearly visible markings or flags, and may in addition be indicated by one or more clearly

visible crosses.

15. At every aerodrome open to public use the following require- ments shall be complied with:-

(1) The direction of the wind at the landing area shall be clearly indicated by a landing T, wind sleeve, smoke producing wind indicator or other recognised method.

(2) If there is a landing T,

(a) it shall be used to indicate the compulsory direction for landing and taking off, even should such direction not correspond to the direction of the wind;

(b) normally it shall be placed so that the shaft of the T lies along the direction of the wind with the cross arm set at that end of the shaft from which the wind is blowing;

(c) if there is either no wind or a slight irregular wind, the T shall be fixed in the direction in which landing or departure is to be made and the fact that it is fixed shall be indicated by the presence of a ball, mounted on a mast in the signal area and clearly visible both to aircraft in flight and to aircraft manoeuvring on the landing area.

(3) When, by way of exception, the landing area at any aero- drome is regarded as divided into two approximately equal zones, one for departures and the other for landings, as provided for in paragraph 45 of this Schedule, this exceptional arrangement shall be indicated by a full star of five points, as illustrated below, of such a size that lines joining the successive points' of the star would form a regular pentagon which could be inscribed in a circle the diameter of which is not less than 50 feet.

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