ISO 13643-4:2013

INTERNATIONAL ISO
STANDARD 13643-4
First edition
2013-07-01
Ships and marine technology —
Manoeuvring of ships —
Part 4:
Stopping, acceleration, traversing
Navires et technologie maritime — Manoeuvres des navires —
Partie 4: Arrêt, accélération, déplacement
Reference number
ISO 13643-4:2013(E)
©
ISO 2013

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ISO 13643-4:2013(E)

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ii © ISO 2013 – All rights reserved

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ISO 13643-4:2013(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test-related physical quantities . 2
5 General test conditions . 3
6 Test 4.1 — Stopping test . 4
6.1 General . 4
6.2 Description . 4
6.3 Analysis and presentation of results of a stopping test . 5
6.4 Designation of a stopping test . 6
7 Test 4.2 — Coasting stop test (inertia test) . 6
7.1 General . 6
7.2 Description . 6
7.3 Analysis and presentation of results of a coasting stop test . 7
7.4 Designation of a coasting stop test . 8
8 Test 4.3 — Acceleration test . 8
8.1 General . 8
8.2 Description . 8
8.3 Analysis and presentation of results of an acceleration test . 8
8.4 Designation of an acceleration test . 8
9 Test 4.4 — Traversing test . 9
9.1 General . 9
9.2 Description . 9
9.3 Analysis and presentation of results of a traversing test . 9
9.4 Designation of a traversing test . 9
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ISO 13643-4:2013(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee
SC 6, Navigation and ship operations.
ISO 13643 consists of the following parts, under the general title Ships and marine technology —
Manoeuvring of ships:
— Part 1: General concepts, quantities and test conditions
— Part 2: Turning and yaw checking
— Part 3: Yaw stability and steering
— Part 4: Stopping, acceleration, traversing
— Part 5: Submarine specials
— Part 6: Model test specials
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INTERNATIONAL STANDARD ISO 13643-4:2013(E)
Ships and marine technology — Manoeuvring of ships —
Part 4:
Stopping, acceleration, traversing
1 Scope
This part of ISO 13643 defines symbols and terms and provides guidelines for the conduct of tests to
give evidence about the stopping, acceleration, and traversing of surface ships, submarines, and models.
It is intended to be read in conjunction with ISO 13643-1.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 13643-1, Ships and marine technology — Manoeuvring of ships — Part 1: General concepts, quantities
and test conditions
ISO 13643-5, Ships and marine technology — Manoeuvring of ships — Part 5: Submarine specials
ISO 80000-1, Quantities and units — Part 1: General
ISO 80000-3, Quantities and units — Part 3: Space and time
IMO MSC Circular 1053, Explanatory Notes to the Standard for Ship Manoeuvrability
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
acceleration test
manoeuvring test to determine the ship’s performance under positive acceleration or negative
acceleration (deceleration)
3.2
coasting stop test
manoeuvring test to determine the ship’s behaviour after the propulsion plant has been disengaged
and/or shut down
3.3
manoeuvring device
rudder, azimuthing thruster, hydroplane, cycloidal propeller, or equivalent system used to manoeuvre
a vessel
3.4
stopping test
manoeuvring test to determine the ship’s behaviour after active reversal of the thrust direction of the
propulsion plant
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ISO 13643-4:2013(E)

3.5
traversing test
manoeuvring test to determine the ship’s capability to execute a lateral movement, if possible without
turning and moving in the longitudinal direction
4 Test-related physical quantities
Test-related physical quantities are listed in Table 1. The more general quantities and concepts concerning
the manoeuvring of ships are set out in ISO 13643-1.
For quantities and their units, ISO 80000-1 and ISO 80000-3 shall be used.
Table 1 — Test-related physical quantities
Concept
CC-
Symbol SI-Unit
Code
Term Definition or explanation
Distance travelled from t = 0 up to the time the ship
s SPF m Track reach is “practically dead in the water” measured along the
F
ship’s track
s
F Track reach decelera-
a
DECFAC s Average distance to decelerate by one knot
V tion factor
0
If the propulsion is shut down, distance travelled along
Track reach to pro-
s SPS m the ship’s track before the propulsion has come to a
S
pulsor stop
complete stop
Acceleration dis- Distance travelled along the ship’s track before the
s SPACC m
a
tance target speed is achieved
Track reach after (t) (t) stands for elapsed time after t = 0, example: track
s SP(t) m
(t)min
minutes reach after 3 minutes: s or SP3
3min
For stopping test:
Stopping time From t = 0 to the time when the ship is “dead in the
water”
t TIF s
F
For coasting stop test:
Coasting time From t = 0 to the time when the ship is “practically dead
in the water” (V ≤ 2 kn)
Time to propulsor If the propulsion is shut down, the time until the pro-
t TIS s
S
stop pulsion has come to a complete stop
t TIU s Reversal time Until full astern power is achieved
U
Time elapsed to achieve the target speed (within a
t TIACC m Acceleration time
a
margin of 1 kn)
Speed down to which the ship still follows the manoeu-
–1b
V VL m s Steerage way
L
vring devices
–1b
V VI m s Target speed Speed to which the ship is accelerated or decelerated
i
Component in x -direction, relative to the initial head-
0
–1b
V VX0 m s Advance speed
x0
ing of the ship
Component in y -direction, relative to the initial head-
0
–1b
V VY0 m s Traversing speed
y0
ing of the ship
–1b
V V0 m s Initial speed (See ISO 13643-1)
0
a
The unit m/kn may be used.
b
The unit kn, common in navigation, may be used.
c
For angles, the unit ° (degree), may be used.
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ISO 13643-4:2013(E)

Table 1 (continued)
Concept
CC-
Symbol SI-Unit
Code
Term Definition or explanation
Coordinate in the direction of initial heading in the
earth-fixed axis system moving with the water, the ori-
x X0 m —
0
gin of which coincides with that of the ship-fixed axis
system at t = 0 (see also ISO 13643-1)
Advance at end of
x X0F m x -component of ship’s track at t
0F 0 F
test (run)
Coordinate in the water surface perpendicular to x ,
0
y Y0 m Transverse axis
0
analogous definition (see also 13643-1)
Transfer at end of
y Y0F m y -component of the ship’s track at t
0F 0 F
test (run)
Coordinate of the earth fixed axis system orthogonal
z Z0 m Vertical axis to x and y vertically down, analogous definition (see
0 0 0
ISO 13643-1)
z Z0 m Dived depth —
0
c
β BET rad Drift angle (See ISO 13643-1)
Change of dived z -component of the ship’s track at t relative to value
0 F
Δz DZ0F m
0F
depth at the commencement of a test (run)
c
Δψ DPSIH rad Change of heading ψ - ψ
0
Change of heading at
c
Δψ DPSIHF rad ψ - ψ
F F 0
end of test (run)
c
ψ PSIH rad Heading (See ISO 13643-1)
c
ψ PSIHF rad Final heading Heading at the end of a test (run)
F
c
ψ PSIH0 rad Initial heading Heading of a vessel at the commencement of a test (run)
0
a
The unit m/kn may be used.
b
The unit kn, common in navigation, may be used.
c
For angles, the unit ° (degree), may be used.
5 General test conditions
When operating submerged
...