ARAB ACADEMY FOR SCIENCE & TECHNOLOGY & MARITIME
TRANSPORTCOLLEGE OF MARITIME TRANSPORT & TECHNOLOGY
Terrestrial
Navigation 3
NS 438
Publication
Prepared By
Navigation Team
g
Chart
(5056):
State the charted information in a circle of radius 2.4 miles its center of Bill
of Portland Lt. Ho. (50o 31-N , 02o 32-W). (you can use any nautical
publications).
GPFL (4) 20 Sec Whistle:
43m 29M: W Shambles:
F.R. 19 m. 13 M: R:
QK FL (9) 15 s: S. SH. R:
Dia : :
F
RC :
CG :
GPFL (4) 20 Sec 43m 29M
GP FL (4): A group flashing light, regular repeating a group of
4 flashes.
20 sec: the time taken to exhibit one full sequence of 4 flashes
20 second.
34 m: Elevation above the M.H.W.S is 34 meter
29 M: Nominal Range 29 Miles.
F.R. 19 m. 13 M.
F.R : Fixed Red light.
19Dia
m :- Elevation
RC – 19 meter
CG(1) 30 s: Diaphone (fog signal) one every 30
Dia
13 M : Nominal Range 13 Miles
second.
RC : Non – directionnel radio bacon
CG : Coastguard station :
QK FL (9) 15 s:
Continuous quick flashing light, repeating a
group 9 flashes.
R - S. Sh. R–
15 s: time taken 15 second PA
Whistle
F : (fog signal) fog whistle Wreck over which the exact depth of
W Shambles: West mark
water is unknown, but is throught to be 28 meters
: Position for which tabulated tidal
stream or less and which is considered dangerous to
Vertical
Dangerous
Angle 1
M
Distance 5
M
Find the Vertical Dangerous Angle using Berry Head Lt. Ho. to pass one mile
du to East of the wreck in position (50 o 24.2-N , 03o 22.8-E).
Distance
=
∴ V.S.A.
=
V.S.A. = ∴ Vertical Dangerous Angle = 00 o
21.5′
Vertical
Dangerous
Angle 1
M
Distance 5
M
Vertical Dangerous Angle =
00o 21.5′
Safe Safe Dangerous Accident
12′ 15′ 21.5′ 25′
Lighthouse
Sector
A sector light is a manufactured pilotage and position-fixing aid that consists of
strictly de-limited horizontal angle light beams to guide water-borne traffic through a
safe channel at night in reasonable visibility. Sector lights are most often used for
safe passage through shallow or dangerous waters. This may be when leaving or
entering harbor. Nautical charts (paper and electronic) give all the required
white - this sector is in the middle of the safe channel
information.
Red - indicates the port edge of the channel for vessels approaching the light
source
Green - indicates the starboard edge of the channel for vessels approaching
Note : (white light is commonly marked as yellow in nautical
the light source.
What is meant by the wreck in the position (49 o 55-N ,
002o 30-W) and what is meant by the abbreviations shown against the
wreck.
WK: Wreck over which the exact depth is unknown, but which is Considered
have a safe clearance at the depth shown”
PA: Position Approximate
a) Find the Limiting Bearings of the Red sector light for Straight pt. Lt. Ho. in Position
(50o 36.5-N , 03o 21.6-W).
( a) If the characteristics of a Lt. Ho. with a radio
beacon have been changed as notified in a weekly
notices to mariners, list three publication which should
be corrected.
Admiralty list of Lights & Fog Signals.
Admiralty Radio Signals.
a) What is the meaning of the following abbreviation
Chart.
shown onPilot
a metric
Books. chart with regard to coastal
features: Pass Str. Ent. Pt. Pk.
Pass : Passage
Str. : Straight
Ent. : Entrance
Pt : Point
Pk : Peak
c) Convert from meter to Fms & Feet
7m , 14m, 18m, 25m.
Meter Feet Fathams
7 23 3.83 (3 5 feet).
14 46 7.66 (7 4 feet).
18 59 9.83 (9 5 feet).
25 82 13.66 (13 4 feet).
Chart (5072):
Find the Dimensions of chart 5072
Démentions (1130.02 x 630.0 mm)
b) Find the name of the Sea and the Coast of
Chart 5072
- BALTIC SEA :
- SWEDEN, SOUTH COAST:
What is meant by the Symbol in Position (55 o 12.4-N ,
13o 23.6-E).
a) What is meant by the Pilot boarding
outer place:scale
and inner deep
of
draught tankers):
Compass Rose, what is the name of difference
between them, state two methods which can be
used to find the difference.
-
- Outer scale is the True Bearings.
- Inner scale is the Magnetic Bearings.
- Difference a between them is the Variation
- To find Variation:
1- From the Compass Rose on the chart
2- From the Variation charts which are shown
a) What is meant by the outer and inner scale of Compass Rose, what is the name
of difference between them, state two methods which can be used to find the
difference.
-
- Outer scale is the True Bearings.
- Inner scale is the Magnetic Bearings.
- Difference a between them is the Variation
- To find Variation:
1- From the Compass Rose on the chart
2- From the Variation charts which are shown curves of equal variation..
What is the Nautical Publications which can be
used to find the following:
A. The specification of a particular racon.
B. Recognition of Pilotage instructions of a certain
port.
C. The specifications of D.F stations.
A. Admiralty List of Radio Signals Vol. (2)
B. Admiralty List of Radio Signals Vol. (6)
C. Admiralty List of Radio Signals Vol. (2)
Example
Using of: Chart Catalogue – Nories Table.
- If the Ship’s Captain have asked you to Prepare the Nautical Publications required
to sail to Port of (KOTKA). Find:
a) 1- Position of port of KOTKA.
2- Which part of Admiralty List of Lights covering the area of the port.
3- Which part of the Saling direction (Pilot Book) cover the area of the port.
b) State name of the Nautical Publications where you can find the following :
1. Ports Position.
2. Pilotage Procedures & how to contact Pilot.
3. Information about the approach and where it is Possible to drop anchor and the
main land marks.
4. Distance between any two Ports
a) 1- Position of KOTKA (60o 28-N , 026o
57-E) (Nories Table)
2- Admiralty List of Light Vol. (B).
3- Sailing direction NP: 20
b) 1- Nories Table (Ports of the World)
2- Admiralty List of Radio Signals Vol. (6)
3- Sailing direction (Pilot Book)
4- Distance Table
1) State the information shown on the chart No.
5055.
5) State the information shown on the chart No.
5056.
6) State the information shown on the chart No.
5072.
7) State the information shown on the chart No.
5048.
Thank you for
attention
Any
Question
