Part II
- (c) to so much of an aerodrome as does not consist of an air navigation installation;
and accordingly a notice under section 11 of this Act or a direction under section 13 or 14 of this Act may be served or given either in respect of the whole of the aerodrome, or in respect of the air navigation installation separately, or in respect of so much of the aerodrome as does not consist of an air navigation installation.
(4) For the purposes—
- (a) of the service of a notice or the giving of a direction under section 11, 13 or 14 of this Act as modified by subsection (3) above, where the notice is to be served or the direction given in respect of an air navigation installation separately, and
- (b) of the operation of section 16 (6) of this Act in relation to a direction so given,
any reference in any of those sections to the manager of the aerodrome shall be construed as a reference to any person who is either the manager of the aerodrome or the authority responsible for the air navigation installation.
(5) Subsections (2) and (3) above shall not apply to section 13(3) of this Act; but where a direction given under section 13 of this Act, as applied or modified by the preceding provisions of this section, is for the time being in force—
- (a) if it is a direction given in respect of an air navigation installation separately (whether that installation forms part of an aerodrome or not), the said section 13 (3) shall have effect in relation to that direction as if the air navigation installation were an aerodrome and, where the direction was given to the authority responsible for the air navigation installation, as if it had been given to the manager of that aerodrome;
- (b) if it is a direction given in respect of so much of an aerodrome as does not consist of an air navigation installation, the said section 13(3) shall have effect in relation to that direction as if any air navigation installation comprised in the aerodrome did not form part of the aerodrome.
(6) A direction under section 14 of this Act, as applied or modified by the preceding provisions of this section, may be given to the authority responsible for one or more air navigation installations so as to relate either—
- (a) to all air navigation installations in the United Kingdom for which it is responsible at the time when the direction is given or at any subsequent time, or
