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Mooring Accessories

This document discusses different types of mooring systems used for anchoring ships. It describes mooring posts, bollards, capstans, floating mooring buoys, wreck buoys, and different buoyage systems used internationally. The document also discusses navigational aids like lighthouses, navigation lights on piers, and beacon lights, which help guide ships and indicate hazards. Proper mooring systems and navigational aids are crucial for ensuring safe, efficient and comfortable travel by ship.

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tsasi kumar
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588 views20 pages

Mooring Accessories

This document discusses different types of mooring systems used for anchoring ships. It describes mooring posts, bollards, capstans, floating mooring buoys, wreck buoys, and different buoyage systems used internationally. The document also discusses navigational aids like lighthouses, navigation lights on piers, and beacon lights, which help guide ships and indicate hazards. Proper mooring systems and navigational aids are crucial for ensuring safe, efficient and comfortable travel by ship.

Uploaded by

tsasi kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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1

MOORINGS
 Moorings - anchoring arrangements

 Situations

 Limited area

 Waiting period is greater

 Distress situation

2
FIXED MOORING ACCESSORIES
 Mooring Post
 For bringing ship into the port

 Attached to the corners of a pier or at the ends of a wharf

 Bollard
 Single or Double bit

 350 KN/ 35 tonnes

 Galvanised Bolts

3
CAPSTAN
 Upright Cylinder – cables are wound –
machinery or hand
 When rope lines are large and long

4
FLOATING TYPE
 Mooring Buoys
 Fixed positions –
harbour interiors

 Design - Sufficient
buoyancy

 Depth : Diameter – 1 : 2

 Size of Anchor Chain –


70 – 90 mm
5
 Holding Power

 Firm sand – 7 × weight of anchor

 Stiff plastic lay – 1.5 × value of firm sand

 Soft mud – 0.25 × value of firm sand

6
WRECK BUOY
 Peculiar shape
 Locate wrecks in
harbour exteriors or
open sea
 Sea cable crossing
locations

7
BUOYAGE SYSTEM
 U.K – Shape
 France – Colour
 U.S.A
 Special numbering,
 Colouring,
 Symbols,
 Lighting etc.,

8
U.S. BUOY TYPES
 Types of buoys in U.S.A
 Spar buoy

 Can buoy

 Nun Buoy

 Lighted buoy

 Spherical Buoy

9
10
Spar Buoys
11
Spherical Buoy
12
LIGHTED BOUYS

13
LIGHTED BUOYS

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ANCHORS

15
ANCHOR TYPES

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NAVIGATIONAL AIDS
 7.5 % collisions - 5 % - open sea

 Half in English Channel and German River Albe

 Dover Strait – only 25m wide - 3,oo,oo ships a year

 For safe, efficient, economic and comfortable travel

17
NAVIGATIONAL ……continued 1
 Not only guide the mariner – to avoid hidden rocky
outcrops and sand bars.

 Night and bad weather conditions - Poor visibility due


to fog or clouds – to locate ports

 Type of navigational aid


 Kind of waterway served, and

 Its function

18
SIGNAL REQUIREMENTS
 Compels attention

 Permits time for easy response

 Makes its meaning clear at a glance, and

 Commands respect

19
FIXED NAVIGATION STRUCTURES
 Light houses
 Navigation lights on piers, wharves, dolphin etc.,
 Beacon lights on breakwaters, shores, etc.,

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