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THE HONG KONG GOVERNMENT GAZETTE, AUGUST 16, 1929.
SCHEDULE,—Continued.
Provisions Amended.
Schedule IV, Para. 2.
Amendment.
(b) Airships and Balloons.-In the case of airships the marks shall be painted near the maximum cross-section on both sides and on the upper surface, equidistant from the letters on the sides. In the case of balloons the marks shall be painted twice near the maximum horizontal circumference of a spherical balloon as far as possible from one another, and, on a non-spherical balloon, near the maximum cross- section on both sides immediately above the rigging band or the points of attachment of the basket suspension cables. In the case both of airships and balloons the side marks shall be visible both from the sides and ground.
The marks shall be of such a colour in relation to the colour of the background on which they are painted as will render them clearly legible at a distance of not less than 250 yards in a clear atmosphere.
16. The height of the letters need not exceed eight feet unless other- wise required by the Governor. Subject as aforesaid, the height of the marks shall be as follows:-
(a) Flying Machines.-The height of the marks on the main planes shall be equal to four-fifths of the chord. The height of the marks on the fuselage or nacelle shall be equal to four-fifths of the greatest depth of the narrowest part of that portion of the fuselage or nacelle on which the marks are painted.
(b) Airships and Non-spherical Balloons. The height of the marks shall be equal to at least one-twelfth of the circum- ference at the maximum transverse cross-section of the air- ship, or the maximum cross-section of the balloon.
(c) Spherical Ballons.—The height of the marks shall be equal to at least one fifteenth of the maximum horizontal circum- ference of the balloon.
17. As nearly as the constructional features of the aircraft admit,
(a) the width of the letters shall be two-thirds of their height;
(b) the thickness of the letters shall be one-sixth of their
height; and
(e) except as provided in paragraph 18 of this Schedule, a space equal to one-half the width of the letters shall be left between the letters.
The letters shall be painted in plain block type, and shall be uniform
in shape and size.
18. A hyphen of a length equal to the width of one of the letters shall be painted between the nationality mark and the registra- tion mark,
19. The nationality and registration marks shall be displayed to the best possible advantage, taking into consideration the construc- tional features of the aircraft. The marks must always be kept clean and visible.
20. The aircraft shall carry affixed to the car or basket or to the fuse- lage, in a prominent position, a metal plate inscribed with the names and residence of the owner and the marks of nationality and registration."
For paragraph 2, the following paragraph shall be substituted :--
"2.--(a) A flying machine, when in the air or manoeuvring on land under its own power, shall carry the following lights :-
(i) On the right side, a green light so constructed and fixed as to show an unbroken light between two vertical planes
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