Aids to navigation application help
General information
Pursuant to section 200(7) of the Maritime Transport Act 1994 - means the name of the applicant (the individual).
on behalf of - means the Name of Organisation/ Owner that wishes to install, alter or remove the aid to navigation.
Address/Phone/email - means the postal address, telephone number and email address of the applicant.
Owner of proposed aid to navigation - means the actual owner for example the name of a company or trust.
Work description
Brief description - means describe the intent for example "install a new aid to navigation" "relocate to new position".
Reason for application - means explain the reason behind the intent for example "improve safety", "move channel" .
Proposed position (WGS84 Datum) - The position requires to be entered in WSG84 Format in degrees and minutes and decimal minutes to 3 decimal places:
Latitude _ _ ° _ _´ . _ _ _ South - Longitude _ _ _ ° _ _´ . _ _ _ East/West
For example: 39° 18.215 South - 177° 52.025 East.
Permanent or temporary
Permanent means - an aid to navigation that will be permanently installed.
Temporary - an aid to navigation than will only be installed for a period of time and then removed.
Light List Number
Light list or K numbers are issued by Land Information NZ. For alterations to existing aids to navigation refer to the light list in the NZ Nautical Almanac, for new aids to navigation leave this section blank and the appropriate number will be allocated.
Aid to Navigation Name
Names are listed in the NZ Nautical Almanac for existing aids to navigation. For new aids to navigation enter the proposed name, typically named after local features.
Details of lights
Light Type
- Lateral - Indicates the Port or Starboard side of route to be followed - Red for Port and Green for Starboard - Light Character is described as any other light character than composite group flashing.
- Cardinal - Indicates the deepest water in that area is on the named side of the mark this is the safe side on which to pass danger. All cardinal marks have a white light. Light Character - North Cardinal Very Quick (VQ) or Quick (Q) - East Cardinal VQ(3) every 5s or Q(3) every 10s - South Cardinal VQ(6) and one long flash every 10s or Q(6) + one long flash every 15s - West Cardinal VQ(9) every 10s or Q(9) every 15s.
- Lead - A leading line is an aid to navigation system that comprises two or more separate structures that are aligned when viewed from the centre line or deepest route along a straight section of channel.
- Sector - Is an aid to navigation that displays different colours and or rhythms over designated arcs. Use for marking hazards or preferred channels.
- Transit - Used for position fixing or identifying turning points.
- Isolated danger - Locates a danger that has navigable water all round it - White - Light Character Group Flashing (2).
- Safe water - Indicates that there is navigable water all-round the mark - White - Light Character, Isophase, occulting, one flash every 10s or Morse – ●
- Special Mark - Indicates a special area or feature marked on a chart for example cables, military exercise zones, recreation zones. - Yellow - Light character, any other than those used for cardinal, Isolated danger and safe water.
Colour
- White - Typically used for Cardinal, Lead, Transit, Isolated Danger and Safe Water.
- White Sectored - Lead or transit light with coloured sectors.
- Green - Typically used for Starboard Lateral marks and Lead lights.
- Red - Typically used for Port Lateral marks and Lead lights.
- Yellow - Typically used for Special Marks.
- Blue - Typically used for Lead lights in built up areas with backlighting issues.
- Blue/Yellow - Used for marking wrecks.
Nominal Range (Nm) - Is the maximum distance at which the light can be seen by a normal observer at night, in conditions when the meteorological visibility is 10 sea miles. Manufacturer’s information for light intensity should be based on 0.74 transmission levels.
Factors that determine the range of a light is its elevation above sea level and the intensity of the light.
Nominal Range is measured in nautical miles for example 10 Nm. Nominal Range of a sectored light may vary with colour for example, White, might be 8 Nm, Red might be 6 Nm.
Character - Flash Character of the Light
- Fixed - Continuous Light. For example, F W (F refers to Fixed, W refers to colour, white Light).
- Occulting – Light is on longer than it is off. For example, Oc W 15s (White light total on off period 15 seconds).
- Isophase - On and off periods the same, For example, Iso G 4s (Green light on 2 seconds off 2 seconds).
- Flashing - On period is shorter than off. For example, Fl WR 10s (White and red flashing light for a total of 10 seconds).
- Group - More than one flash. For example, Fl (2) W 10s (white light flashing 2 times in 10s).
- Quick - 50 to 80 flashes per minute. For example, Q R 1s (Quick Flashing Red light).
- Other Characters for lights are listed in the NZ Nautical Almanac or IALA document E-110.
Character Sequence - Flash Sequence or on and off period
- Fixed - FW - Fixed.
- Occulting –for example, Oc W 15s - fl 9, ec 6.
- Isophase for example, Iso G 4s - fl 2, ec 2.
- Flashing for example, Fl WR 10s - fl 1, ec 9.
- Group for example, Fl (2) W 10s - fl 0.5, ec 1.5, fl 0.5, ec 7.5.
- Quick for example Q R 1s - fl 0.4, ec 0.6.
fl refers to flash length or on time -
ec refers to eclipse or off period.
Obscured Arcs - Refers to any part of the lights arc that maybe obscured by land or structures.
Example:
Obscured 350° - 005° (15°)
Directions are given by an observer from seaward. All bearings refer to the true compass and are measured clockwise from 000° to 359°.
Sectored Arcs - List various sectors associated with the light.
Example:
White 18.0° - 104.0° (86.0°)
Red 104.0° - 221.5° (117.5° )
White 221.5° - 18.0° (156.5°)
Directions are given by an observer from seaward. All bearings refer to the true compass and are measured clockwise from 000° to 359°.
Elevation (meters) - Is the vertical distance between the focal plane of the light and Mean High Water Springs (MHWS).
Period of operation
- Night - A light that operates at night only.
- Night and Day - A light that operates during the night and day.
- On Demand - A light that operates only when required by the mariner.
Details of structure
Top-mark - Description of top mark if fitted for example, Can, Cone, two spheres, ▲, ■
Description - Structure description for example White Metal Tower, Green Wooden Pile, Green Plastic Spar Buoy.
Colour - in this case means the colour of structure for example white, white with red bands.
Elevation (metres) - The vertical distance from ground or MHWS to the top of the structure.
Details of radar beacon (RACON) and automatic identification system (AIS)
Racon Character - Racon radar identification character.
Example: Morse A ● –Morse D – ● ●
Racon Type
- X-S Frequency Agile - Responds on the frequency on which they are interrogated, operates in both X and S bands.
- X Band - Operates in the 9300 to 9500 MHz frequency.
- S Band - Operates in the 2900 to 3100 MHz frequency.
Racon Range (Nm) - Transponder range in Nautical Miles.
AIS - Type
- Type 1 - Transmit only station operating in Fixed Access Time Division Multiple.
Access Mode (FATDMA), also known as a class B device. - Type 2 - Similar to type 1 but has an additional receiver that allows station to be remotely configured and controlled by an AIS VHF Data Link (VDL), also known as a class B device.
- Type 3 - Contains two AIS receiving processes that allow it to fully participate on the AIS VDL. This means that in addition to FATDMA, type 3 can function in Radom Access Time Division Multiple Access Mode (RATDMA), also known as a class A device.
- Synthetic - Physical aids to navigation exists but message 21 is broadcast from a nearby base station or aids to navigation rather than an AIS transmitter on site.
- Virtual - No physical aid to navigation exists, message 21 is broadcast from a nearby base station or aid to navigation
AIS description is from the IALA Recommendation A-126.
MMSI Number - Maritime Mobile Service Identity (MMSI) number. Defined by ITU-R M.585-4.
MMSI numbers are issued by the Ministry of Economic Development (0508) 776- 463.
995121XXX - Four-digit identifier for real and synthetic aids starts with 1.
995126XXX - Four-digit identifier for virtual aids starts with 6.
FATDMA Slot Allocated - Applies to Type 1 and Type2 devices, slots for these devices are programmed into the units and allocated by the Ministry of Economic Development.
The time slot will be a number between 0-2249.
AIS Message 21 - ITU-R M.1371 defines the aid to navigation report message 21.
The message enables providers to broadcast information on the:
- Type of aid to navigation.
- Name of aid to navigation.
- Position of aid to navigation.
- Position accuracy indicator.
- Type of fixing device.
- Position status.
- Real or virtual identification.
- Dimensions of aid to navigation.
- Status of aid to navigation.
Refer manufacturer’s information.
List other Messages - List any other messages that will be broadcast from the AIS aid to navigation. In addition to message 21, an AIS aid to navigation may also transmit Message 6, 8, 12, 14, 25 and other appropriate messages.
Refer manufacturer’s information.
AIS Elevation (metres) - Is the vertical distance between the aerial and Mean High Water Springs (MHWS).
AIS Range (Nm) - Transponder range in Nautical Miles.