13 JAN. THE NEW ZEALAND GAZETTE 15

(10) In the case of fog, masters are enjoined to use the
utmost care, and the port should be approached with caution.
(11) When the Examination Service is in force merchant
vessels when approaching ports are especially cautioned against
making use of private signals of any description, either by
day or night; the use of them will render a vessel liable to
be fired on.
(12) The pilots attached to the ports will be acquainted
with the regulations to be followed.

PART III.

Other Regulations in Force

Nothing in this notice is to be taken as overruling such
general or local regulations as may be issued by the Public
Traffic Regulations at each port, through routing authorities,
by Notices to Mariners or other means, to meet new dangers
or situations which may arise or to cover local conditions.

Attention is called to Notice to Mariners 13 and N.Z. 6 of
each year and NEMEDRI.

Note.—This notice is a revision of Notice 1/54.

Authority: The Lords Commissioners of the Admiralty.
(H. 6028/54.)

Wellington, N.Z., 22 December 1954.

W. C. SMITH, Secretary for Marine.

(M. 10/145)

Notice to Mariners No. 2 of 1955

OFFICIAL MESSAGES TO BRITISH MERCHANT SHIPS AND
FISHING VESSELS

THIS organization provides for the transmission of import-
ant messages from naval authorities to small ships,
trawlers, etc., fitted with radiotelephony, on occasions when
such messages may be of vital importance to their safety and
welfare. Tests of the organization, lasting for one week, may
be held at irregular intervals without prior notice, and all small
craft fitted with R/T apparatus are earnestly requested to
listen for the messages broadcast during these tests and to
forward particulars of those received.

Note.—This notice will be issued annually as New Zealand
Notice to Mariners.

2. When the organization described in this Notice to
   Mariners is ordered to be brought into force—

(a) Ships are to continue to read the traffic from the coast
station serving the waters in which they are sailing.
Official messages will be broadcast as shown in the
table below.

(b) T.R.s are to be discontinued.

(c) Messages are not to be acknowledged unless ships are
specially directed to do so in the text of the message.

(d) Ships are to conform to any restrictions regarding the
use of radio which may be issued by the naval
authorities.

New Zealand Coastal Waters

These messages are to be broadcast at definite times from
the radio stations given in the following table. Normal R/T
procedure to which small ships are accustomed is employed as
far as possible. A preliminary call will be made on 2,182 kc/s
and the messages will then be broadcast on the coast station’s
working frequency of 2,162 kc/s; this frequency will be referred
to in the preliminary call. The text of each message indicates
the Naval Authority who has originated it and contains, if
necessary, details of the locality to which it refers.

Example.—The shore station calls on 2,182 kc/s ‘‘Hello, all
British merchant ships, this is Wellington Radio. I have a
message from the New Zealand Naval Board. Please listen on
2,162 kc/s.’’

The shore station then changes frequency and proceeds:
‘‘Hello, all British merchant ships, this is Wellington Radio.
Here is a message from the New Zealand Naval Board.
Begins. The organization for broadcasting official messages
for ships fitted with radiotelephony given in N. to M. No. 2
is now in force for test for one week ending . . . (repetition of
text) . . . (date time group) . . . ends.’’

All ships hearing these messages, when transmitted for test
purposes only, are particularly requested to forward brief
reports through their owners to the Navy Department and the
Marine Department, Wellington, stating the times and their
approximate position when these test messages were heard.

R/T Broadcast Routines

• In all cases official messages will be transmitted prior to the weather
  report and navigational warnings scheduled for the above times.

Authority: New Zealand Naval Board.

Wellington, N.Z., 22 December 1954.

W. C. SMITH, Secretary for Marine.

(M. 10/145)

Notice to Mariners No. 3 of 1955

NEW ZEALAND—RADIOTELEPHONY DISTRESS FREQUENCY
2182 KC/S—SILENCE PERIODS

THE attention of mariners is drawn to regulation 123 of
the Radio Regulations 1953, which reads as follows:

‘‘All stations licensed to use radiotelephone installations
in the authorized maritime mobile service frequency bands
between 1,605 kc/s and 2,850 kc/s shall, during their hours of
service, observe a listening watch on the distress frequency
of 2,182 kc/s twice each hour for three minutes commencing
on the hour and half hour, New Zealand time. During these
periods all transmissions between the’ frequencies of
2,167 kc/s and 2,197 kc/s; except for distress, urgency, or
safety transmissions, shall cease.’’

It is important that all ships refrain from transmitting
between 2,167 kc/s and 2,197 kc/s during the periods indicated.

Authority: Director-General, Post and Telegraph Department, Wellington.

W. C. SMITH, Secretary for Marine.

(M. 10/7)

Notice to Mariners No. 4 of 1955

WARNING SIGNALS TO DENOTE THE PRESENCE OF SUBMARINES

(1) Attention is drawn to the following warning signal
which is in use to denote the presence of submarines:

British vessels fly one of the two International Code
Groups IIP or OIV to denote that submarines, which
may be submerged, are in the vicinity. Vessels are
cautioned to steer so as to give a wide berth to any
vessel flying either of these signals. If from any cause
it is necessary to approach her, vessels should proceed at
slow speed until warning is given of the danger zone by
flags, semaphore, or megaphone, etc., a good look-out being
kept meanwhile for submarines whose presence may be
only indicated by their periscopes showing above water.
A submarine submerged at a depth too great to show her
periscope, may sometimes indicate her position by
releasing a smoke-candle, which gives off a considerable
volume of smoke on first reaching the surface. Her
position may sometimes be indicated by red-and-white or
red-and-yellow buoys or floats, which tow on the surface
close astern.

(2) It must not be inferred from the above that submarines
exercise only when in company with escorting vessels.

(3) Under certain circumstances warnings that submarines
are exercising in specified areas may be broadcast by a
General Post Office W/T Station.

(4) Submarines may be met on the surface by night,
particularly in the vicinity of the following ports:

Thames Estuary, Portsmouth, Portland, Plymouth, Barrow,
Liverpool, Londonderry, and Clyde areas.

(5) Hitherto the navigational lights of submarines have
been exhibited from the conning tower, which is near the
centre of the vessel. The steaming light, bow lights, and
overtaking light have been necessarily low down and closely
spaced with the result that they give no indication of the
submarine’s length nor of her exact course or change of course.
Consequently, they may be mistaken for the lights of a very
much smaller vessel of the coastal type.

(6) Special arrangements have now been made to fit H.M.
submarines with a second steaming light. The forward steaming
light will be fitted on a special jack staff in the forepart
of the vessel about 6 ft. above the casing, while the after light
will continue to be fitted on the conning tower. The vertical
separation in some cases will be less than 15 ft.

The overtaking light will be fitted on a special ensign staff
in the stern of the submarine.

(7) Until all submarines have been modified, mariners are
cautioned that they may expect to see some submarines with
the arrangement of lights described in paragraph (5) above.

Publication affected: New Zealand Nautical Almanac
and Tide Tables, 1954, Vol. 2, pages 22 and 23.

Authority: Admiralty.

Wellington, N.Z., 22 December 1954.

W. C. SMITH, Secretary for Marine.

(M. 6/1/197)

Notice to Mariners No. 5 of 1955

AIR-SEA RESCUE

Action to be Taken When Survivors are Picked Up

A SURVIVOR from an aircraft casualty at sea who is
picked up by a ship may be able to give information
which will assist in the rescue of other survivors.

Masters are therefore asked to put the following questions
to rescued survivors of an aircraft casualty and to communicate
the answers to a coast radio station.

The position of the rescuing vessel, the wind speed and
direction, and the time when the survivor is picked up
should also be given. If practicable communication should be
maintained with the shore station until released.