Common Structural Rules for
Bulk Carriers, January 2006

Background Document
CHAPTER 10 – HULL OUTFITTING

NOTE:- This TB is published to improve the transparency of CSRs and increase theunderstanding of CSRs in the industry.
- The content of the TB is not to be considered as requirements.
- This TB cannot be used to avoid any requirements in CSRs, and in cases
where this TB deviates from the Rules, the Rules have precedence.
- This TB provides the background for the first version (January 2006) of theCSRs, and is not subject to maintenance.

COMMON STRUCTURAL RULES FOR BULK CARRIERS − BACKGROUND DOCUMENT
PAGE 2 – CHAPTER 10: HULL OUTFITTING© IACS - the International Association of Classification Societies and theInternational Association of Classification Societies Limited
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PAGE 3 – CHAPTER 10: HULL OUTFITTINGTABLE OF CONTENTS:
SECTION 1 – RUDDER AND MANOEUVRING ARRANGEMENT................................................ 5
GENERAL.................................................................................................................................... 5

1.

1.1
1.2
1.3
1.4

Manoeuvring arrangement ..................................................................................................... 5
Structural details ..................................................................................................................... 5
Size of rudder area .................................................................................................................. 5
Material ................................................................................................................................... 6

RUDDER FORCE AND TORQUE .............................................................................................. 6

2.

2.1
2.2

Rudder force and torque for normal rudders.......................................................................... 6
Rudder force and torque for rudder blades with cut-outs (semi-spade rudders)................... 6

SCANTLINGS OF THE RUDDER STOCK ................................................................................ 7

3.

3.1
3.2
3.3
3.4

Rudder stock diameter ............................................................................................................ 7
Strengthening of rudder stock................................................................................................. 7
Analysis................................................................................................................................... 7
Rudder trunk........................................................................................................................... 8

RUDDER COUPLINGS............................................................................................................... 8

4.

4.1
4.2
4.3
4.4
4.5

General .................................................................................................................................... 8
Horizontal couplings............................................................................................................... 9
Vertical couplings.................................................................................................................... 9Cone couplings with key....................................................................................................... 10
Cone couplings with special arrangements for mounting and dismounting the couplings . 10

RUDDER BODY, RUDDER BEARINGS .................................................................................. 11

5.

5.1
5.2
5.3
5.4
5.5
5.6

Strength of rudder body........................................................................................................ 11
Rudder plating ...................................................................................................................... 11
Connections of rudder blade structure with solid parts in forged or cast steel .................... 11
Rudder bearings .................................................................................................................... 12
Pintles .................................................................................................................................... 12
Criteria for bearing clearance ................................................................................................ 13

DESIGN YIELD MOMENT OF RUDDER STOCK .................................................................. 13

6.

6.1

General .................................................................................................................................. 13

STOPPER, LOCKING DEVICE................................................................................................. 13

7.

7.1
Stopper .................................................................................................................................. 13
7.2
Locking device ...................................................................................................................... 13
7.3 ...................................................................................................................................................... 14
PROPELLER NOZZLES ............................................................................................................ 14

8.

8.1
8.2
8.3
8.4
8.5

General .................................................................................................................................. 14
Design pressure..................................................................................................................... 14
Plate thickness ....................................................................................................................... 14
Section modulus .................................................................................................................... 14
Welding ................................................................................................................................. 14

RUDDER HORN AND SOLE PIECE SCANTLINGS............................................................... 14

9.

9.1
9.2
9.3
10.

Sole piece............................................................................................................................... 14
Rudder horn of semi spade rudders (case of 1-elastic support) ............................................ 15
Rudder horn of semi spade rudders (case of 2-conjugate elastic support)............................ 16
RUDDER COUPLING FLANGES......................................................................................... 16

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10.1..................................................................................................................................................... 16
AZIMUTH PROPULSION SYSTEM..................................................................................... 17

11.
11.1
11.2
11.3
11.4
11.5
11.6
11.7

General .................................................................................................................................. 17
Arrangement ......................................................................................................................... 17
Design loads .......................................................................................................................... 17
Plating.................................................................................................................................... 17
Ordinary stiffeners ................................................................................................................ 18
Primary supporting members ............................................................................................... 18
Hull supports of the azimuth propulsion system.................................................................. 18

SECTION 2 – BULWARKS AND GUARD RAILS ........................................................................... 191.

GENERAL.................................................................................................................................. 19
1.1
1.2

2.

BULWARKS............................................................................................................................... 19
2.1
2.2

3.

Introduction........................................................................................................................... 19
General .................................................................................................................................. 19
General .................................................................................................................................. 19
Scantlings............................................................................................................................... 20

GUARD RAILS.......................................................................................................................... 20
3.1

General .................................................................................................................................. 20

SECTION 3 – EQUIPMENT .............................................................................................................. 224.

GENERAL.................................................................................................................................. 22
4.1

5.

EQUIPMENT NUMBER ............................................................................................................ 22
5.1

6.

General .................................................................................................................................. 22
Equipment number................................................................................................................ 22

EQUIPMENT ............................................................................................................................. 22
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10

General .................................................................................................................................. 22
Anchors ................................................................................................................................. 22
Chain cables for anchors........................................................................................................ 23
Attachment pieces ................................................................................................................. 24
Towlines and mooring lines .................................................................................................. 24
Hawse pipes .......................................................................................................................... 24
Windlass ................................................................................................................................ 25
Chain stoppers....................................................................................................................... 26
Chain locker........................................................................................................................... 26
Fairleads and bollards ........................................................................................................... 26

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PAGE 5 – CHAPTER 10: HULL OUTFITTINGSECTION 1 – RUDDER AND MANOEUVRINGARRANGEMENT
1. GENERAL
1.1

Manoeuvring arrangement

1.1.1
1.1.1.a

These regulations are based on A1.1 and A1.2 of Sec. 14, Chapter 1, Part 1 of the GL
Rules.

1.1.2
1.1.2.a

These regulations are based on A1.3 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

1.1.3
1.1.3.a

1.2

These regulations are based on A1.4 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Structural details

1.2.1
1.2.1.aThis regulation is according to A.2.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 1.2.1 of IACS UR S10.

1.2.2
1.2.2.aThis regulation is according to A.2.2, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 1.2.2 of IACS UR S10.

1.2.3
1.2.3.aThis is a newly formulated regulation. Each classification society has its own rules
related to continuity of structures. This regulation is considered on the lines of therules of various classification societies.

1.2.4
1.2.4.a

1.3

This regulation is according to A.2.3, Sec. 14, Chapter 1, Part 1 of the GL Rules, andis based on 1.2.3 of IACS UR S10. However, a special rudder (rudder trunk extends
to the internal part of the hull, and forms a structure supporting the rudder stock) is
assumed, and rudder trunk is required to be of watertight construction.

Size of rudder area

1.3.1
1.3.1.aThis regulation is according to A.3 of Sec. 14, Chapter 1, Part 1 of the GL Rules. The
standard area of rudder is given by parameters such as ship's length and draft.
(Recommended items)

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1.4

Material

1.4.1
1.4.1.aThis regulation is self-explanatory and is based on S10.1.3.1 to S10.1.3.3 of IACS UR
S10.

1.4.2
1.4.2.aThis regulation is according to A.4.2 to A4.44, Sec. 14, Chapter 1, Part 1 of the GL
Rules, and is based on S10.1.3.1 to S10.1.3.3 of IACS UR S10.

1.4.3
1.4.3.aThis regulation is according to A.4.3 to A4.44, Sec. 14, Chapter 1, Part 1 of the GL
Rules, and is based on S10.1.3.1 to S10.1.3.3 of IACS UR S10.

1.4.4
1.4.4.aThis regulation is according to A4.4, Sec. 14, Chapter 1, Part 1 of the GL Rules, andis based on S10.1.3.1 to S10.1.3.3 of IACS UR S10.

2. RUDDER FORCE AND TORQUE
2.1

Rudder force and torque for normal rudders

2.1.1
2.1.1.a

These regulations are according to B1.1 of Sec. 14, Chapter 1, Part 1 of the GL Rules,
and are based on 2.1.1 of IACS UR S10. The balance ratio of an unbalanced rudder istaken at a uniform value of 0.08.

2.1.2
2.1.2.a

These regulations are according to B1.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules,
and are based on 2.1.2 of IACS UR S10. The balance factor of an unbalanced rudder
is taken at a uniform value of 0.08.

2.1.3
2.1.3.a2.2

This regulation is according to B.1.3 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Rudder force and torque for rudder blades with cut-outs (semi-spaderudders)

2.2.1
2.2.1.a

These regulations are according to B2.1 of Sec. 14, Chapter 1, Part 1 of the GL Rules,
and are based on 2.2 of IACS UR S10.

2.2.2
2.2.2.a

These regulations are according to B2.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules,
and are based on 2.2 of IACS UR S10.

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2.2.3
2.2.3.a

These regulations are according to B2.3 of Sec. 14, Chapter 1, Part 1 of the GL Rules,
and are based on 2.2 of IACS UR S10.

3. SCANTLINGS OF THE RUDDER STOCK
3.1

Rudder stock diameter

3.1.1
3.1.1.aThis regulation is according to C.1.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 3. of IACS UR S10.

3.1.2
3.1.2.aThis regulation is according to C.1.2, Sec. 14, Chapter 1, Part 1 of the GL Rules.

3.1.3
3.1.3.aThis regulation is according to C.1.3 of Sec. 14, Chapter 1, Part 1, of the GL Rules.

3.1.4
3.1.4.a

3.2

This regulation is according to C.1.4, Sec. 14, Chapter 1, Part 1 of the GL Rules.

Strengthening of rudder stock

3.2.1
3.2.1.aThis regulation is according to C.2.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 4.3 of IACS UR S10.

3.3

Analysis

3.3.1

General3.3.1.aThis regulation is according to C.3.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on IACS UR S10, and 1. of the Appendix. However, a simplified procedure
has been added in addition to the rudder supported by the upper rudder stock andthe lower pintle specified in IACS UR, spade rudders, and Mariner type rudder,
Mariner type rudder in which the neck bearing is supported by the rudder horn andrudder trunk extends to the internal part of the rudder body, spade rudder with aconstruction that supports the rudder stock (can be observed in rudder with trunk)for the data for analysis specified after 3.3.2. In case of the former, Type 9 requiredin Sec. 1, Chapter 10, Part B of the BV Rules has been adopted. The latter however,does not exist in any rules and has been proposed a new by GL for CSR
development. The calculations for these rudders will be according to the regulationsof the each Society Rules

3.3.2

Data for the analysis

3.3.2.aThis regulation is according to C.3.2, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on IACS UR S10, and 2. of the Appendix, but as mentioned above, a new
regulation has been added. It is observed that the simplified procedure for spaderudders with a construction that supports the rudder stock and in which the rudder
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PAGE 8 – CHAPTER 10: HULL OUTFITTING

trunk extends to the internal part of the rudder body, may not conform to the actual
supporting structure of each rudder. Thus, correction is necessary depending on theactual application including correction to the structure.

3.3.3

Moments and forces to be evaluated

3.3.3.aThis regulation is according to B.3.3, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on IACS UR S10, and 2. of the Appendix, but as mentioned above, a new
regulation has been added. When the rudder trunk extends to the internal part of
the rudder body, corrections are necessary as mentioned above to the structures
before application.

3.4

Rudder trunk

3.4.1
3.4.1.aThis regulation is according to B.4, Sec. 14, Chapter 1, Part 1 of the GL Rules and 5.6,
Sec. 1, Chapter 10, Part B of the BV Rules. It corresponds to the regulation related tospade rudders where the rudder trunk extends to the internal part of the rudder
body and the construction is such that it supports the rudder stock. It is specified asa requirement related to rudder trunk supporting the said rudder.

3.4.2
3.4.2.aThis regulation is according to 5.6.1, Sec. 1, Chapter 10, Part B of the BV Rules.

3.4.3
3.4.3.aThis regulation is according to 5.6.2, Sec. 1, Chapter 10, Part B of the BV Rules.

3.4.4
3.4.4.aThis regulation is according to 5.6.3, Sec. 1, Chapter 10, Part B of the BV Rules.

3.4.5
3.4.5.aThis regulation is according to 5.6.4, Sec. 1, Chapter 10, Part B of the BV Rules.

3.4.6
3.4.6.aThis regulation is according to 5.6.4, Sec. 1, Chapter 10, Part B of the BV Rules.

3.4.7
3.4.7.aThis regulation is according to 5.6.5, Sec. 1, Chapter 10, Part B of the BV Rules.

3.4.8
3.4.8.aThis regulation is according to 5.6.6, Sec. 1, Chapter 10, Part B of the BV Rules.

4. RUDDER COUPLINGS
4.1

General

4.1.1
4.1.1.aThis regulation is according to D.1.1 of Sec. 14, Chapter 1, Part 1 of the GL Rules.
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4.1.2
4.1.2.aThis regulation is according to D.1.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules.
Actually, it is covered in the regulation of 4.2.

4.1.3
4.1.3.aThis regulation is according to D.1.3, Sec. 14, Chapter 1, Part 1 of the GL Rules. It
corresponds to the regulations of 3.7.1-1 and -3, 3.7.3-1 and -3. of Part C of the Rules
for the Survey and Construction of Steel Ships.

4.1.4
4.1.4.a

4.2

This regulation is according to D.1.4 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Horizontal couplings

4.2.1
4.2.1.aThis regulation is according to D.2.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 6.1.1 of IACS UR S10..

4.2.2
4.2.2.aThis regulation is according to D.2.2, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 6.2.2 and 6.1.3 of IACS UR S10.

4.2.3
4.2.3.a

These regulations are according to D.2.3 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

4.2.4
4.2.4.a

These regulations are according to D.2.4 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

4.2.5
4.2.5.a

4.3

These regulations are according to D.2.5 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Vertical couplings

4.3.1
4.3.1.aThis regulation is according to D.3.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 6.3.1 of IACS UR S10.

4.3.2
4.3.2.aThis regulation is according to D.3.2, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 6.3.2 of IACS UR S10.

4.3.3
4.3.3.aThis regulation is according to D.3.3, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 6.3.3 of IACS UR S10.

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4.4

Cone couplings with key

4.4.1
4.4.1.a

These regulations are according to D4.1.1 of Sec. 14, Chapter 1, Part 1 of the GL
Rules, and are based on IACS UR S10.6.2.1.

4.4.2
4.4.2.a

These regulations are according to D4.1.2 of Sec. 14, Chapter 1, Part 1 of the GL
Rules, and are based on IACS UR S10.6.2.1.

4.4.3
4.4.3.aThis regulation is according to D.4.1.3 of Sec. 14, Chapter 1, Part 1 of the GL Rules.
When incorporated in CSR, however, the required cross section area has been
increased by about 10%.

4.4.4
4.4.4.aThis regulation is according to D.4.1.4, Sec. 14, Chapter 1, Part 1 of the GL Rules.

4.4.5
4.4.5.aThis regulation is according to D.4.1.5, Sec. 14, Chapter 1, Part 1 of the GL Rules,
and based on 6.2.2 of IACS UR S5.10.

4.4.6
4.4.6.a

4.5This regulation is according to D.4.1.6 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Cone couplings with special arrangements for mounting and dismounting
the couplings

4.5.1
4.5.1.aThis regulation is according to D.4.2.1, Sec. 14, Chapter 1, Part 1 of the GL Rules,
and based on IACS UR S5.10.6.2.3.

4.5.2
4.5.2.aThis regulation is according to D.4.2.2, Sec. 14, Chapter 1, Part 1 of the GL Rules.

4.5.3

Push-up pressure and push-up length

4.5.3.a

These regulations are according to D.4.2.3 to D.4.2.4 of Sec. 14, Chapter 1, Part 1 of
the GL Rules.

4.5.4

Push-up pressure

4.5.4.a

These regulations are according to D.4.2.3.1 to D.4.2.4 of Sec. 14, Chapter 1, Part 1 of
the GL Rules.

4.5.5

Push-up length

4.5.5.a

These regulations are according to D.4.2.3.2 to D.4.2.4 of Sec. 14, Chapter 1, Part 1 of
the GL Rules.

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4.5.6

Push-up pressure for pintle bearings

4.5.6.a

These regulations are according to D.4.2.4 of Sec. 14, Chapter 1, Part 1 of the GL
Rules.

5. RUDDER BODY, RUDDER BEARINGS
5.1

Strength of rudder body

5.1.1
5.1.1.aThis regulation is according to E.1.1, Sec. 14, Chapter 1, Part 1 of the GL Rules.

5.1.2
5.1.2.aThis regulation is according to E.1.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

5.1.3
5.1.3.a

These regulations are according to E.1.3, Sec. 14, Chapter 1, Part 1 of the GL Rules,
and based on 5.1(a) of IACS UR S10. The permissible stress of a part of theregulations has been revised.

5.1.4
5.1.4.a

5.2

These regulations are according to E.1.4, Sec. 14, Chapter 1, Part 1 of the GL Rules,
and based on IACS 5.1(b) of UR S10. The permissible stress of a part of theregulations has been revised.

Rudder plating

5.2.1
5.2.1.a

These regulations are according to E.2.1, Sec. 14, Chapter 1, Part 1 of the GL Rules,
and based on the first half of the regulations in 5.2 of IACS UR S10.

5.2.2
5.2.2.aThis regulation is according to E.2.2, Sec. 14, Chapter 1, Part 1 of the GL Rules.

5.2.3
5.2.3.aThis regulation is according to E.2.3, Sec. 14, Chapter 1, Part 1 of the GL Rules, andis based on the second half of the regulations in 5.2 of IACS UR S10.

5.3

Connections of rudder blade structure with solid parts in forged or cast steel

5.3.1

General5.3.1.aRegulations are according to E7.4.1, Sec. 1, Chapter 10, Part B of the BV Rules.

5.3.2

Minimum section modulus of the connection with the rudder stock housing

5.3.2.aRegulations are according to E7.4.2, Sec. 1, Chapter 10, Part B of the BV Rules.

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5.3.3

Calculation of actual section modulus of the connection with the rudder
stock housing

5.3.3.aRegulations are according to 7.4.3, Sec. 1, Chapter 10, Part 1 of the BV Rules.

5.3.4

Thickness of horizontal web plates

5.3.4.aRegulations are according to 7.4.4, Sec. 1, Chapter 10, Part 1 of the BV Rules.

5.3.5

Thickness of side plating and vertical web plates welded to the solid part5.3.5.aRegulations are according to 7.4.5, Sec. 1, Chapter 10, Part 1 of the BV Rules.

5.3.6

Solid part protrusions

5.3.6.aRegulations are according to 7.4.6, Sec. 1, Chapter 10, Part 1 of the BV Rules.

5.3.7
5.3.7.a

5.4

Regulations are according to E3.2, Sec. 14, Chapter 1, Part 1, of the GL Rules.

Rudder bearings

5.4.1
5.4.1.aThis regulation is according to E.4.1 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

5.4.2
5.4.2.aThis regulation is according to E.4.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

5.4.3
5.4.3.aThis regulation is according to E.4.3, Sec. 14, Chapter 1, Part 1 of the GL Rules, and
it is not specified clearly in IACS UR S10. The formula is merely a simplified
formula for initial calculations, and is inappropriate for use in ultimate strength
studies.

5.4.4
5.4.4.aThis regulation is according to E.4.4, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 8.1 of IACS UR S10.

5.4.5
5.4.5.aThis regulation is according to E.4.5 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

5.4.6
5.4.6.a

5.5This regulation is according to E.4.6 and E4.7, Sec. 14, Chapter 1, Part 1 of the GL
Rules, and based on 8.2 of IACS UR S10

Pintles

5.5.1
5.5.1.aThis regulation is according to E.5.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andis based on the second half of the regulations in 7.1 of IACS UR S10.
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5.5.2
5.5.2.aThis regulation is according to E.5.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

5.5.3
5.5.3.aThis regulation is according to E.5.3, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on the description in the first half of the regulation in 7.1 of IACS UR S10.

5.5.4
5.5.4.a

5.6This regulation is according to E.5.4, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 7.2 of IACS UR S10.

Criteria for bearing clearance

5.6.1
5.6.1.aThis regulation is according to E.6.1, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 8.3 of IACS UR S10.

5.6.2
5.6.2.aThis regulation is according to E.6.2, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 8.3 of IACS UR S10.

5.6.3
5.6.3.aThis regulation is according to E.6.3, Sec. 14, Chapter 1, Part 1 of the GL Rules, andbased on 8.3 of IACS UR S10.

6. DESIGN YIELD MOMENT OF RUDDER STOCK
6.1

General

6.1.1
6.1.1.aThis regulation is according to F of Sec. 14, Chapter 1, Part 1 of the GL Rules.

7. STOPPER, LOCKING DEVICE
7.1

Stopper

7.1.1
7.1.1.a

7.2

This regulation is according to G.1, Sec. 14, Chapter 1, Part 1 of the GL Rules.

Locking device

7.2.1
7.2.1.aThis regulation is according to G.2, Sec. 14, Chapter 1, Part 1 of the GL Rules.
Detailed strength requirements are specified in this requirement.

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7.3
7.3.1
7.3.1.aThis regulation is according to G.3 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

8. PROPELLER NOZZLES
8.1

General

8.1.1
8.1.1.aThis regulation is according to H.1.1 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

8.1.2
8.1.2.a

8.2

This regulation is according to H.1.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Design pressure

8.2.1
8.2.1.a

8.3

This regulation is according to H.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Plate thickness

8.3.1
8.3.1.aThis regulation is according to H.3.1 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

8.3.2
8.3.2.a

8.4

This regulation is according to H.3.2 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Section modulus

8.4.1
8.4.1.a

8.5

This regulation is according to H.4 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

Welding

8.5.1
8.5.1.aThis regulation is according to H.5 of Sec. 14, Chapter 1, Part 1 of the GL Rules.

9. RUDDER HORN AND SOLE PIECE SCANTLINGS
9.1

Sole piece

9.1.1
9.1.1.aThis regulation is according to C.4.1, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on 9.1 of IACS UR S10.

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9.1.2
9.1.2.aThis regulation is according to C.4.3, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on IACS UR S10.9.1.

9.1.3
9.1.3.aThis regulation is according to C.4.4, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on IACS UR S10.9.1.

9.1.4
9.1.4.a

9.2

This regulation is according to C.4.5, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on IACS UR S10.9.1.

Rudder horn of semi spade rudders (case of 1-elastic support)

9.2.1
9.2.1.aThis regulation is according to C.5.1, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on 9.2 of IACS UR S10.

9.2.2
9.2.2.aThis regulation is according to C.5.2, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on 9.2 of IACS UR S10.

9.2.3
9.2.3.aThis regulation is according to C.5.3, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on 9.2 of IACS UR S10.

9.2.4
9.2.4.aThis regulation is according to C.5.4, Sec. 13, Chapter 1, Part 1 of the GL Rules, andbased on 9.2.1 of IACS UR S10.

9.2.5
9.2.5.aThis regulation is according to C.5.5 of Sec. 13, Chapter 1, Part 1, of the GL Rules.

9.2.6
9.2.6.a

These regulations are according to C.5.6, Sec. 13, Chapter 1, Part 1 of the GL Rules

9.2.7
9.2.7.a

These regulations are according to C.5.7, Sec. 13, Chapter 1, Part 1 of the GL Rules

9.2.8
9.2.8.a

These regulations are according to C.5.8, Sec. 13, Chapter 1, Part 1 of the GL Rules

9.2.9
9.2.9.a

These regulations are according to C.5.9, Sec. 13, Chapter 1, Part 1 of the GL Rules

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9.2.109.2.10.a This regulation is according to C.5.10, Sec. 13, Chapter 1, Part 1 of the GL Rules.

9.3

Rudder horn of semi spade rudders (case of 2-conjugate elastic support)

9.3.1

Bending moment

9.3.1.aThis requirement is according to 1.7.1, Appendix 1, Chapter 10, Part B of the BV
Rules.

9.3.2

Shear force

9.3.2.aThis requirement is according to 1.7.2, Appendix 1, Chapter 10, Part B of the BV
Rules.

9.3.3

Torque9.3.3.aThis requirement is according to 1.7.3, Appendix 1, Chapter 10, Part B of the BV
Rules.

9.3.4

Shear stress calculation

9.3.4.aThis requirement is according to 1.7.4, Appendix 1, Chapter 10, Part B of the BV
Rules.

9.3.5

Bending stress calculation

9.3.5.aThis requirement is according to 1.7.5, Appendix 1, Chapter 10, Part B of the BV
Rules.

9.3.6

General remarks

9.3.6.aThis regulation conforms to the regulations from 9.3.5 to 9.2.10 above (based on theregulations of C.5.5 to C.5.10 of Sec. 13, Chapter 1, Part 1, of the GL Rules).

10. RUDDER COUPLING FLANGES
10.1
10.1.110.1.1.a This regulation is according to B4.4.1, Sec. 19, Chapter 1, Part 1 of the GL Rules.

10.1.210.1.2.a This regulation is according to B4.4.2, Sec. 19, Chapter 1, Part 1 of the GL Rules.

10.1.310.1.3.a This regulation is according to B4.4.3, Sec. 19, Chapter 1, Part 1 of the GL Rules.

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11. AZIMUTH PROPULSION SYSTEM
11.1 General
11.1.1 Arrangement
11.1.1.a This regulation is based on the regulation in 11.1, Section 1, Chapter 10, Part B of the
BV Rules.

11.1.2 Application
11.1.2.a This regulation is based on the regulation in 11.1.2, Section 1, Chapter 10, Part B of
the BV Rules.

11.1.3 Operating conditions
11.1.3.a This regulation is based on the regulation in 11.1.3, Section 1, Chapter 10, Part B of
the BV Rules.

11.2 Arrangement
11.2.1 Plans to be submitted
11.2.1.a This regulation is based on the regulation in 11.2.1, Section 1, Chapter 10, Part B of
the BV Rules.

11.2.2 Locking device
11.2.2.a This regulation is based on the regulation in 11.2.2, Section 1, Chapter 10, Part B of
the BV Rules.

11.3 Design loads
11.3.1
11.3.1.a This regulation is based on the regulation in 11.3.1, Section 1, Chapter 10, Part B of
the BV Rules.

11.4 Plating
11.4.1 Plating of the rudder part of the azimuth propulsion system
11.4.1.a This regulation is based on the regulation in 11.4.1, Section 1, Chapter 10, Part B of
the BV Rules.

11.4.2 Plating of the pod
11.4.2.a This regulation is based on the regulation in 11.4.2, Section 1, Chapter 10, Part B of
the BV Rules.

11.4.3 Webs
11.4.3.a This regulation is based on the regulation in 11.4.3, Section 1, Chapter 10, Part B of
the BV Rules.

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11.5 Ordinary stiffeners
11.5.1 Ordinary stiffeners of the pod
11.5.1.a This regulation is based on the regulation in 11.5.1, Section 1, Chapter 10, Part B of
the BV Rules.

11.6 Primary supporting members
11.6.1 Analysis criteria
11.6.1.a This regulation is based on the regulation in 11.6.1, Section 1, Chapter 10, Part B of
the BV Rules.

11.6.2 Loads
11.6.2.a This regulation is based on the regulation in 11.6.2, Section 1, Chapter 10, Part B of
the BV Rules.

11.6.3 Strength check11.6.3.a This regulation is based on the regulation in 11.6.3, Section 1, Chapter 10, Part B of
the BV Rules.

11.7 Hull supports of the azimuth propulsion system
11.7.1 Analysis criteria
11.7.1.a This regulation is based on the regulation in 11.7.1, Section 1, Chapter 10, Part B of
the BV Rules.

11.7.2 Loads
11.7.2.a This regulation is based on the regulation in 11.7.2, Section 1, Chapter 10, Part B of
the BV Rules.

11.7.3 Strength check11.7.3.a This regulation is based on the regulation in 11.7.3, Section 1, Chapter 10, Part B of
the BV Rules.

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PAGE 19 – CHAPTER 10: HULL OUTFITTINGSECTION 2 – BULWARKS AND GUARD RAILS
1. GENERAL
1.1

Introduction

1.1.1
1.1.1.a

1.2

This regulation is according to 1.1.1, Section 2, Chapter 10, Part B of the BV Rules.

General

1.2.1
1.2.1.aThis regulation is according to 1.2.1, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(2) of the LL Convention, and on IACS UI LL14.

1.2.2
1.2.2.aThis regulation is according to 1.2.2, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(2) of the LL Convention.

1.2.3
1.2.3.aThis regulation is according to 1.2.3, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 26(7) of the LL Convention.

1.2.4
1.2.4.aThis regulation is according to 1.2.4, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(6) of the LL Convention.

1.2.5
1.2.5.aThis regulation is according to 1.2.5, Section 2, Chapter 10, Part B of the BV Rules.

1.2.6
1.2.6.aThis regulation is according to 1.2.6, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 24(4) of the LL Convention.

1.2.7
1.2.7.aThis regulation is according to 1.2.7, Section 2, Chapter 10, Part B of the BV Rules.

2. BULWARKS
2.1

General

2.1.1
2.1.1.aThis regulation is according to 2.1.1, Section 2, Chapter 10, Part B of the BV Rules.

2.1.2
2.1.2.aThis regulation is according to 2.1.2, Section 2, Chapter 10, Part B of the BV Rules.
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2.1.3
2.1.3.aThis regulation is according to 2.1.3, Section 2, Chapter 10, Part B of the BV Rules.

2.1.4
2.1.4.a2.2

This regulation is according to 2.1.4, Section 2, Chapter 10, Part B of the BV Rules.

Scantlings

2.2.1
2.2.1.aThis regulation is according to 2.2.1, Section 2, Chapter 10, Part B of the BV Rules. It
includes a partial modification of the BV Rules.

2.2.2
2.2.2.aThis regulation is according to 2.2.2, Section 2, Chapter 10, Part B of the BV Rules.

2.2.3
2.2.3.aThis regulation is according to 2.2.3, Section 2, Chapter 10, Part B of the BV Rules.

2.2.4
2.2.4.aThis regulation is according to 2.2.4, Section 2, Chapter 10, Part B of the BV Rules.
The formulae in the regulation have been obtained by partial modification of theformulae in BV Rules. (Same as the requirements for ships of length 92.5 m)

2.2.5
2.2.5.aThis regulation is according to 2.2.5, Section 2, Chapter 10, Part B of the BV Rules.

2.2.6
2.2.6.aThis regulation is according to 2.2.6, Section 2, Chapter 10, Part B of the BV Rules.

3. GUARD RAILS
3.1

General

3.1.1
3.1.1.aThis regulation is according to 3.1.1, Section 2, Chapter 10, Part B of the BV Rules.

3.1.2
3.1.2.aThis regulation is according to 3.1.2, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(3) of the LL Convention.

3.1.3
3.1.3.aThis regulation is according to 3.1.3, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(3) of the LL Convention.

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3.1.4
3.1.4.aThis regulation is according to 3.1.4, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(3) of the LL Convention.

3.1.5
3.1.5.aThis regulation is according to 3.1.5, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(3)(c) of the LL Convention.

3.1.6
3.1.6.aThis regulation is according to 3.1.6, Sec. 2, Chapter 10, Part B of the BV Rules, andbased on Reg. 25(3)(d) of the LL Convention.

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PAGE 22 – CHAPTER 10: HULL OUTFITTINGSECTION 3 – EQUIPMENT
4. GENERAL
4.1

General

4.1.1
4.1.1.aThis regulation is based on 1.1.1 , Section 4, Chapter 10, Part B of the RINA Rules.

4.1.2
4.1.2.aThis regulation is based on 1.1.2, Section 4, Chapter 10, Part B of the RINA Rules.

4.1.3
4.1.3.aThis regulation is based on IACS UR A1.1.4.

4.1.4
4.1.4.aThis regulation is based on 1.1.3, Section 4, Chapter 10, Part B of the RINA Rules.

5. EQUIPMENT NUMBER
5.1

Equipment number

5.1.1

General5.1.1.aThis regulation is according to 2.1.1, Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.2.

5.1.2

Equipment number

5.1.2.aThis regulation is according to 2.1.2, Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.2.

6. EQUIPMENT
6.1

General

6.1.1
6.1.1.aThis regulation is based on 3.1.1, Section 4, Chapter 10, Part B of the RINA Rules.

6.1.2
6.1.2.aThis regulation is based on 3.1.2, Section 4, Chapter 10, Part B of the RINA Rules.

6.2

Anchors

6.2.1

General6.2.1.aThis regulation is according to 3.2., Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.4.1.

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6.2.2

Ordinary anchors

6.2.2.aThis regulation is according to 3.2., Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.4.1.

6.2.3

High and very high holding power anchors

6.2.3.aThis regulation is according to 3.2., Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.4.1.

6.2.4

Third anchor

6.2.4.aThis regulation is according to 3.2., Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.4.1.

6.2.5

Test for high holding power anchors approval

6.2.5.aThis regulation is according to 3.2., Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.4.1.

6.2.6

Test for very high holding power anchors approval

6.2.6.aThis regulation is according to 3.2., Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.4.1.

6.2.7

Specification for test on high holding power and very high holding power
anchors

6.2.7.aThis regulation is according to 3.2., Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.4.1.

6.3

Chain cables for anchors

6.3.1

Material

6.3.1.aThis regulation is according to 3.3, Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.5.

6.3.2

Scantlings of stud link chain cables

6.3.2.aThis regulation is according to 3.3, Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.5.

6.3.3

Studless link chain cables

6.3.3.aThis regulation is according to 3.3, Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.5.

6.3.4

Chain cable arrangement

6.3.4.aThis regulation is according to 3.3, Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.5.

6.3.5

Wire ropes

6.3.5.aThis regulation is according to 3.3, Section 4, Chapter 10, Part B of the RINA Rules,
and based on IACS UR A1.5.

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6.4

Attachment pieces

6.4.1

General6.4.1.aThis regulation is according to 3.4, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.4.2

Scantling

6.4.2.aThis regulation is according to 3.4, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.4.3

Material

6.4.3.aThis regulation is according to 3.4, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.4.4

Spare attachment pieces

6.4.4.aThis regulation is according to 3.4, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.5

Towlines and mooring lines

6.5.1

General6.5.1.aThis regulation is according to 3.5, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.5.2

Materials

6.5.2.aThis regulation is according to 3.5, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.5.3

Steel wires

6.5.3.aThis regulation is according to 3.5, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.5.4

Number of mooring lines

6.5.4.aThis regulation is according to 3.5, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.5.5

Length of mooring lines

6.5.5.aThis regulation is according to 3.5, Sec. 4, Chapter 10, Part B of the RINA Rules.

6.5.6

Equivalence between the breaking loads of synthetic and natural fibre
ropes

6.5.6.aThis regulation is according to 3.5, Sec. 4, Chapter 10, Part B of the RINA Rules. The
treatment of synthetic fibre rope specified in 3.5.6 also differs from the conventional
treatment.

6.6

Hawse pipes

6.6.1
6.6.1.aThis regulation is according to 3.6, Section 4, Chapter 10, Part B of the RINA Rules.

6.6.2
6.6.2.aThis regulation is according to 3.6, Section 4, Chapter 10, Part B of the RINA Rules.

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6.6.3
6.6.3.aThis regulation is according to 3.6, Section 4, Chapter 10, Part B of the RINA Rules.

6.7

Windlass

6.7.1

General6.7.1.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.2

Assumptions for the calculation of the continuous duty pull

6.7.2.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.3

Calculation of the continuous duty pull

6.7.3.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.4

Temporary overload capacity

6.7.4.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.5

Normal hoisting speed

6.7.5.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.6

Windlass brake

6.7.6.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.7

Chain stoppers

6.7.7.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.8

Green sea loads

6.7.8.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.9

Forces in the securing devices of windlasses due to green sea loads

6.7.9.aThis regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.10 Strength criteria for windlass subject to anchor and chain loads
6.7.10.a This regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

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6.7.11 Strength criteria for securing devices of windlass
6.7.11.a This regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.7.12 Connection with deck
6.7.12.a This regulation is according to 3.7., Section 4, Chapter 10, Part B of the RINA Rules,
and includes the requirements of IACS UR S27.4.2.

6.8

Chain stoppers

6.8.1
6.8.1.aThis regulation is according to 3.8, Section 4, Chapter 10, Part B of the RINA Rules.

6.8.2
6.8.2.a

6.9This regulation is according to 3.8, Section 4, Chapter 10, Part B of the RINA Rules.

Chain locker

6.9.1
6.9.1.aThis regulation is according to 3.9, Section 4, Chapter 10, Part B of the RINA Rules.
It includes the requirements of IACS UR L4.

6.9.2
6.9.2.aThis regulation is according to 3.9, Section 4, Chapter 10, Part B of the RINA Rules.
It includes the requirements of IACS UR L4.

6.9.3
6.9.3.aThis regulation is according to 3.9, Section 4, Chapter 10, Part B of the RINA Rules.
It includes the requirements of IACS UR L4.

6.9.4
6.9.4.aThis regulation is according to 3.9, Section 4, Chapter 10, Part B of the RINA Rules.
It includes the requirements of IACS UR L4.

6.10 Fairleads and bollards
6.10.1
6.10.1.a This regulation is according to 3.10, Section 4, Chapter 10, Part B of the RINA Rules.

COMMON STRUCTURAL RULES FOR BULK CARRIERS