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34  AIR REGULATIONS, 1938

in this paragraph, may be flown, but only over areas which are notified as danger areas by notices to airmen. In every case, the position of the object to which the balloon or kite is moored to the ground shall be marked as provided in this paragraph. 

4. Airships

8. Except as provided in paragraph 9 below, an airship when under way shall display the following lights:-

(a) Forward, a white light, fixed so as to show forward an unbroken light throughout a dihedral angle of 220° formed by two vertical planes and bisected by the plane of symmetry of the aircraft; this light must be visible at a distance of at least 5 miles; 

(b) On the right side, a green light, fixed so as to show an unbroken light throughout a dihedral angle of 110° formed by two vertical planes, one of which is parallel to the plane of symmetry of the aircraft and directed dead ahead, and the other is directed to the right; this light must be visible at a distance of at least 5 miles; 

(c) On the left side, a red light, fixed so as to show an unbroken light throughout a dihedral angle of 110° formed by two vertical planes, one of which is parallel to the plane of symmetry of the aircraft and directed dead ahead, and the other is directed to the left; this light must be visible at a distance of at least 5 miles; 

(d) At the rear, a white light, fixed so as to show astern an unbroken light throughout a dihedral angle of 140° formed by two vertical planes and bisected by the plane of symmetry of the aircraft; this light must be visible at a distance of at least 3 miles. 

In cases where, in order to fulfil the conditions of this paragraph, the single light has to be replaced by several lights, the field of visibility of each of these lights shall be so limited that only one can be seen at a time. 

9. An airship which is under way and which is not under control (or which has voluntarily stopped its engines), or which is being towed, shall display the forward and rear lights specified in sub-paragraphs (a) and (d) of paragraph 8 above and, in addition, below the airship,