The Naval Architect
International Journal of the Royal Institution of Naval Architects
Editor:
Michael W a k e , B S c , C . E n g , MRINA A s s o c i a t e Editor:
Tim Knaggs
Sales Director: Henry R. J a c k s o n Advertisement Manager: Richard Kirkby
Advertisement and Editorial Assistant: Karen Roberts, B A
Subscriptions and Publications: Lesley Smithers
Editorial and Advertisement Office: 10 Upper Belgrave Street, London S W I X 8 B Q . Telephone: 0 1 - 2 3 5 4 6 2 2 / 4 . Telegrams; Sinai, London.' Telex: 2 6 5 8 4 4 SINAI G Telefax: 0 1 - 2 4 5 - 6 9 5 9
T e n issues published per year: January, February, March, April, May, J u n e , July, September, October and November
Printed in England by
Staples Printers S t Albans Limited at The Priory Press
T h e I n s t i t u t i o n is n o t as a b o d y , responsible for o p i n i o n s e x p r e s s e d In The Naval Architect unless it is expressly s t a t e d t h a t t h e s e are t h e C o u n c i l ' s v i e w s . © 1 9 8 8 : T h e Royal I n s t i t u t i o n c f Navat A r c h i t e c t s . This p u b l i c a t i o n is c o p y r i g h t under t h e Berne C o n v e n t i o n and t h e I n t e r n a t i o n a l C o p y r i g h t C o n v e n t i o n . All r i g h t s r e s e r v e d . No part of t h i s p u b l i c a t i o n m a y be r e p r o d u c e d , s t o r e d in a retrieval s y s t e m or t r a n s m i t t e d w i t h o u t t h e prior p e r m i s s i o n of t h e c o p y r i g h t o w n e r s . Permission Is n o t , h o w e v e r , required t o c o p y a b s t r a c t s of papers or o f articles o n c o n d i t i o n t h a t a full r e f e r e n c e t o t h e s o u r c e Is s h o w n . Multiple copying of the contents
without permission is always Illegal.
A D V E R T I S E M E N T R E P R E S E N T A T I V E S : G e r m a n y , A u s t r i a a n d S w i t z e r l a n d : T. A n t h o n y , A m Lerchenberg 2 2 , D - 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y . T e l : ( 0 4 1 8 3 1 6 5 4 1 . I t a l y : V i t t o r i o F. N e g r o n e , Ediconsult I n t e r n a t i o n a l e , Piazza Fontane fvlarose 3 , 1 6 1 2 3 Genoa, I t a l y . T e l : 6 4 3 . 6 6 9 ; 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . T e l e x : 2 8 1 1 9 7 . S c a n d i n a v i a : A B S t e p h a n R. G. O r n , PO Box 1 8 4 , S - 2 7 1 0 0 Y s t a d , S w e d e n . T e l : 4 6 . 4 1 1 1 8 4 0 0 . T e l e x : 3 3 3 3 6 O R N S .
New dimensions in cruising: A portabie swimming pooi plus sailing craft and tender system to be suppiied by MacGregor-Navire and stowed at tiie stern of tfie new tVtade-in 5,500 grt mini liner building at Seebecl^werft. The cruise liner marlcet is reviewed on page E15.
Great interest is currently focused on freight train ferry ventures, especially in Europe. These wagons and lift on the main deck of Railship 2 , which sails between Travemiinde and Hanko, epitomise this buoyant market. See page E23.
Contra-rotating efficiency liarnessed
by Aquamaster E10
New theory on the loss of Herald of
Free Enterprise E l 1
Cruise liners unlimited—the boom
continues E l 5
Rail ferries challenge fixed linl<sE23
A novel concept t o combat fouling
in seawater systems E28
Maximising the efficiency of
off-shore platform clamps E32
Regular F e a t u r e s
Commentary
. . . E3
News Review
. . . E 5
Naval News
. . .E9
Trade & Equipment N e w s . . . . E 3 0
RINA Affairs
. . E 3 5
Diarv
. . E 4 0
T e c h n i c a l P a p e r
Kurdistan —The A n a t o m y of
a
Marine Disaster, by E. C. B.
Corlett, J . C. Colman and N. R.
Hendy
c A u d i t e d c i r c u l a t i o n 1 9 8 6 J a n u a r y / D e c e m b e r 7 , 6 8 3 ISSN 0 3 0 6 - 0 2 0 9 J A N U A R Y 1 9 8 8H Naval Architect
The Naval Architect
International Journal of thé Royal
Institution of Naval Architects
Editor:
Michael Wake, B S c , C . E n g , MRINA
Associate Editor:
Tim Knaggs
Sales Director: Henry R. J a c k s o n
Advertisement Manager:
Gillian Smyth
Advertisement and Editorial Assistant:
Karen Roberts, BA
Subscriptions and Publications:
Lesley Smithers
Editorial and Advertisement Office:
10 Upper Belgrave Street,
London S W I X 8 B Q .
Telephone: 0 1 - 2 3 5 4 6 2 2 / 4 .
Telegrams; Sinai, London.
Telex: 2 6 5 8 4 4 SINAI G
Telefax: 0 1 - 2 4 5 - 6 9 5 9
Ten issues published per year;
January, February, March, April,
May, June, July, September,
October and November
Printed in England by
Staples Printers St Albans Limited
at The Priory Press
T h e I n s t i t u t i o n is n o t as a b o d y , responsible for o p i n i o n s e x p r e s s e d In The Naval Architect unless it is expressly s t a t e d t h a t t h e s e are the C o u n c i l ' s v i e w s .
© 1 9 8 8 : T h e Royal I n s t i t u t i o n of N a v a l A r c h i t e c t s . This p u b l i c a t i o n Is c o p y r i g h t u n d e r the Berne C o n v e n t i o n and t h e I n t e r n a t i o n a l C o p y r i g h t C o n v e n t i o n . A l l r i g h t s r e s e r v e d . N o part of this p u b l i c a t i o n m a y be r e p r o d u c e d , stored in a retrieval s y s t e m or t r a n s m i t t e d w i t h o u t t h e prior p e r m i s s i o n of t h e c o p y r i g h t o w n e r s . Permission is n o t , h o w e v e r , required to c o p y a b s t r a c t s of papers or of articles o n c o n d i t i o n t h a t a full r e f e r e n c e t o t h e s o u r c e is s h o w n . Muitipie copying of the contents
without permission Is always iiiegai.
C O N T E N T S
F E S R U A R Y
An ungainly giant but able to lift
offshore modules up to 12,000 tonnes:
a model of MIcoperi's huge
semi-submersibie crane ship, which is featured
on page E49.
Micoperi 7000: the world's largest
semi-submersible crane vessel
E49
First marine 'black boxes' on board
soon E57
The US Navy's new generation of
wood/FRP minehunters E57
New anti-abrasion c o a t i n g f r o m
International Paint E60
Designer's notebook —safety and
damage control plans E61
Sovereign of tlie Seas: the largest
purpose-built cruise liner. . . . E 6 2
Regular Features
Commentary
. E43
News Review
. . E 4 5
Letters t o the Editor
. . E 5 3
Trade and Equipment N e w s . . . E 5 4
RINA Affairs
. . E 7 0
Diarv
E76
A D V E R T I S E M E N T
R E P R E S E N T A T I V E S :
G e r m a n y , A u s t r i a arid S w i t z e r l a n d : T. A n t h o n y , A m L e r c h e n b e r g 2 2 , D - 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y . Tel: ( 0 4 1 8 3 ) 5 5 4 1 . Italy: V i t t o r i o F. N e g r o n e , Ediconsult I n t e r n a t i o n a l e , Piazza F o n t a n e fvlarose 3 , 1 6 1 2 3 G e n o a , Italy. T e l ; 6 4 3 . 6 5 9 ; 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . T e l e x : 2 8 1 1 9 7 . S c a n d i n a v i a : A B S t e p h a n R. G. O r n , PO Box 1 8 4 , S . 2 7 1 0 0 Y s t a d , S w e d e n . Tel: 4 6 . 4 1 1 1 8 4 0 0 . T e l e x : 3 3 3 3 5 O R N S .Royal Caribbean Cruise Line's new
flagship. Sovereign of t h e Seas, leaves
Miami. At 74,000 grt, she will carry up
to 2,600 passengers on one-week
Caribbean cruises. Her luxurious features
and technical specification are outlined
on page E62.
A B C
A u d i t e d c i r c u l a t i o n 1 9 8 6January/December 7 , 6 8 3
ISSN 0 3 0 6 - 0 2 0 9
H Naval Architect
The Naval Architect
International Journal of the Royal
Institution of Naval Architects
Editor:
Michael Wake, B S c , C . E n g , MRINA
Associate Editor:
Tim Knaggs
Sales Director: Henry R. J a c k s o n
Advertisement Manager:
Giiiian Smyth
Advertisement and Editorial Assistant:
Karen Roberts, BA
Subscriptions and Publications:
Lesley Smithers
Editorial and Advertisement Office:
10 Upper Belgrave Street,
London S W I X 8BQ.
Telephone: 0 1 - 2 3 5 4 6 2 2 / 4 .
Telegrams: Sinai, London.
Telex: 2 6 5 8 4 4 SINAi G
Telefax: 0 1 - 2 4 5 - 6 9 5 9
Ten issues published per year:
January, February, March, April,
May, J u n e , July, September,
October and November
Printed in England by
Staples Printers St Albans Limited
at The Priory Press
Ttie I n s t i t u t i o n is n o t as a b o d y , responsible for opinions expressed in The Naval Architect unless It is e x p r e s s l y s t a t e d ttiat t h e s e are the C o u n c i l ' s v i e w s .
; 1 9 8 8 : T h e Royal I n s t i t u t i o n of Naval A r c h i t e c t s . This p u b l i c a t i o n is c o p y r i g h t under the Berne C o n v e n t i o n and t h e I n t e r n a t i o n a l C o p y r i g h t C o n v e n t i o n . A l l r i g h t s r e s e r v e d . No part of this p u b l i c a t i o n m a y be r e p r o d u c e d , stored in a retrieval s y s t e m or t r a n s m i t t e d w i t h o u t t h e prior p e r m i s s i o n of t h e c o p y r i g h t o w n e r s . Permission Is n o t , h o w e v e r , required to c o p y a b s t r a c t s of papers or of articles o n c o n d i t i o n t h a t a full r e f e r e n c e t o the s o u r c e Is s h o w n . Multiple copying of the contents
without permission is always illegal.
A D V E R T I S E M E N T
R E P R E S E N T A T I V E S :
G e r m a n y , A u s t r i a and S w i t z e r l a n d : T. A n t h o n y , A m L e r c h e n b e r g 2 2 , D - 2 1 12 J e s t e b u r g b. H a m b u r g , G e r m a n y . Tel: ( 0 4 1 8 3 ) 5 6 4 1 . I t a l y : V i t t o r i o F. N e g r o n e , Ediconsult I n t e r n a t i o n a l e , Piazza Fontane fvlarose 3, 1 6 1 2 3 Genoa, Italy. T e l : 5 4 3 . 6 5 9 : 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . T e l e x ; 2 8 1 1 9 7 . S c a n d i n a v i a : AB S t e p h a n R. G. O r n , PO B o x 1 8 4 , S ' 2 7 1 0 0 Y s t a d , S w e d e n . Tel: 4 6 , 4 1 1 1 8 4 0 0 . T e l e x ; 3 3 3 3 5 O R N S .C O N T E N T S
M A R C H
What progress has been made since the
Herald of Free Enterprise disaster iast
March? James Paffett reviews events at
RiNA's speciai conference on ro-ro ship
design and vuinerabiiity. See page E86.
Something new astern in the cargo liner
scene. Accommodation for 88
passengers on ivaran's new container
ship Annerlcana, conceived for South
American routes. See page E97.
The w a y aheatd: James Paffett
reviews RINA's December
con-ference on ro-ro ship safety and
vulnerability E86
Diesel engine scrutiny: Doug
Wood-yard examines the 1 9 8 7 market
and m a n u f a c t u r e r s ' k e y a d
-vances E91
Aivericana: N o r w e g i a n o w n e r
Ivaran revives t h e philosophy
of p a s s e n g e r - c a r r y i n g c a r g o
liners E97
The importance of good davit
de-sign E103
Regular Features
Commentary
. . E79
News Review
. .E81
Naval News
. .E85
Trade and Equipment N e w s . . E 1 0 1
RINA Affairs
.E107
D i a r v
E112
T e c h n i c a l Paper
BP S W O P S - A n Operator's and
Ship-builder's Perspective, by T. J .
Parker and M. Woolveridge. '
A u d i t e d c i r c u l a t i o n 1 9 8 7
J a n u a r y / D e c e m b e r 7 , 0 4 7
ISSN 0 3 0 6 - 0 2 0 9
M
Naval Architect
The Naval Architect
International Journal of the Royal
Institution of Naval Architects
Editor:
Michael Wake, B S c , C . E n g , MRINA
Associate Editor:
Tim Knaggs
Sales Director: Henry R. J a c k s o n
Advertisement Manager:
Gillian Smyth
Advertisement and Editorial Assistant:
Karen Roberts, BA
Subscriptions and Publications:
Lesley Smithers
Editorial and Advertisement Office:
10 Upper Belgrave Street,
London S W I X SBQ.
Telephone: 0 1 - 2 3 5 4 6 2 2 / 4 .
Telegrams: Sinai, London.
Telex: 2 6 5 8 4 4 SINAI G
Telefax: 0 1 - 2 4 5 - 6 9 5 9
Ten issues published per year:
January, February, March, April,
May, J u n e , July, September,
October and November
Printed in England by
Errey's Printers, Heathfield, East Sussex.
The Institution is not as a body, responsible •
for opinions expressed in the The Naval
Architect unless it is expressly stated that
these are the Council's views,
e 1988: The Royal Institution of Naval
Architects. This publication is copyright
under the Berne Convention and the
International Copyright Convention. All
rights reserved. No part ofthis publication
may be reproduced, stored in a retrieval
system or transmitted without the prior
permission of the copyright owners.
Permission is not, however, required to copy
abstracts of papers or of articles on
conditions that a full reference to the source
is shown. Multiple copying of the contents ' without permission ts always illegal.A D V E R T I S E M E N T
R E P R E S E N T A T I V E S :
G e r m a n y , A u s t r i a a n d S w i t z e r l a n d : T. A n t h o n y , A m L e r c h e n b e r g 2 2 , D - 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y . Tel: 1 0 4 1 8 3 ) 5 6 4 1 . Italy: V i t t o r i o F. N e g r o n e , Ediconsult I n t e r n a t i o n a l e , Piazza Fontane M a r o s e 3, 1 6 1 2 3 G e n o a , Italy; T e l : 6 4 3 . 6 5 9 ; 2 6 8 , 3 3 4 ; 2 6 8 . 6 1 3. T e l e x : 2 8 1 1 9 7 . S c a n d i n a v i a ; A B S t e p h a n R. G. O r n , PO B o x 1 8 4 , S - 2 7 1 0 0 Y s t a d , S w e d e n . Tel; 4 6 . 4 1 1 1 8 4 0 0 , T e l e x ; 3 3 3 3 6 O R N S .A B C
A u d i t e d c i r c u l a t i o n 1987J a n u a r y / D e c e m b e r 7,047
A iong series of simpie, but novel,
double-ended ferries is being processed
by North East Shipbuilders for a Danish
owner. The interesting concept is
outlined on page El22.
Bulk cargo self-unloading systems can
have a number of attractions for owners.
This Consilium cement-handling
sectional layout (which includes loading
gear) is typical of a number of designs
offered today. See page El35.
COWTEPtlTS APRIIL
Containeriseci power packs for PZ's 25
(double-ended ferries E122
Designer's notebook: Insulation —a
costly item E131
Self-unloaders for speedy bulk cargo
handling E135
Regular Features
Commentary
E115
News Review.
El 17
Naval News
E121
Trade and Equipment News
E132
Letters to the Editor.
El 34
RINAAffairs.
E138
Diary
El 4-4
ISSN 0 3 0 6 - 0 2 0 9
The Naval Architect
International Journal of the Royal
Institution of Naval Architects
Editor:
Michael Wake, B S c , C E n g , MRINA
Associate Editor:
Tim Knaggs
Sales Director: Henry R. J a c k s o n
Advertisement Manager:
Gillian Smyth
Advertisement and Editorial Assistant:
Lucy Selves
Subscriptions and Publications:
Lesley Smithers
Editorial and Advertisement Office:
10 Upper Belgrave Street,
London S W I X 8BQ.
Telephone: 0 1 - 2 3 5 4 6 2 2 / 4 .
Telegrams: Sinai, London.
Telex: 2 6 5 8 4 4 SINAI G
Telefax: 0 1 - 2 4 5 - 6 9 5 9
Ten issues published per year:
January, February, March, April,
May, J u n e , July, September,
October and November
Printed in England by
Errey's Printers, Heathfield, East Sussex.
The Institution Is not as a body, responsible
for opinions expressed in the The Naval
Architect unless it Is expressly stated that
these are the Council's views.
© 1988: The Royal Institution of Naval
Architects. This publication is copyright
. underthe Berne Convention and the
International Copyright Convention. All
rights reserved. No part ofthis publication
may be reproduced, stored in a retrieval
system or transmitted without the prior
permission of the copyright owners.
Permission is not, however, required to copy
abstracts of papers or of articles on
conditions that a full reference to the source
is shown. Multiple copying ofthe contents without permission is always Illegal.A D V E R T I S E M E N T
R E P R E S E N T A T I V E S :
G e r m a n y , A u s t r i a a n d S w i t z e r l a n d : T. A n t h o n y , A m Lerchenberg 2 2 , D 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y . Tel: ( 0 4 1 8 3 1 5 5 4 1 . Italy: V i t t o r i o F. N e g r o n e , Ediconsult I n t e r n a t i o n a l e , Piazza Fontane fVlarose 3, 1 61 2 3 G e n o a , Italy. T e l : 6 4 3 . 6 5 9 ; 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . T e l e x : 2 8 1 1 9 7 . S c a n d i n a v i a ; A B S t e p h a n R . G . O r n , PO Box 1 8 4 , S - 2 7 1 0 0 Y s t a d , S w e d e n . Tel: 4 6 . 4 1 1 1 8 4 0 0 . Telex: 3 3 3 3 5 O R N S .ABC\
A u d i t e d c i r c u l a t i o n 1987J a n u a r y / D e c e m b e r 7,047
[ = 1
Naval Architect
A novel propulsion concept from
KaMeWa proposes a counter-rotating
thruster unit mounted behind a
conventional propeller. The model
arrangement here was tested by SSPA for
a Stena Line double-ended ferry project.
See page El55.
Proposed bridge layout for a Danish 'ship
ofthe future'. Mr. F. S. Larsen discusses a
number of interesting projects nearing
completion, on page El72.
C O N T E N T S
KaMeWa's
thrusters
ficiency ..
counter-rotating
for propulsion
ef-E155
Buoyance in the w i n g s : a novel
c o n c e p t f o r r o - r o s h i p s . . . . E160
Designer's notebook - t h e wear,
tear and corrosion factors of deck
coverings E170
Danish ships of t h e f u t u r e E172
Safety r e q u i r e m e n t s ' influence on
ro-ro designs E176
R e g u l a r F e a t u r e s
C o m m e n t a r y
E147
News Review
E149
Naval News
E153
Letters to the Editor
E169
T r a d e a n d E q u i p m e n t N e w s . E l 74
R I N A A f f a i r s
E178
Diary
E l 84
T e c h n i c a l P a p e r
Habitability in Surface W a r s h i p s , by
H. D. Ware.
ISSN 0 3 0 6 - 0 2 0 9
M A Y 1988
£745
Warship Technology
MAY 1988
Naval Review — including naval new building at
Trinity Industries 35
W a r s h i p T e c h n o l o g y
Internalional J o u r n a l of the R o y a l Institution of Naval A r c h i t e c t s
E d i t o r :
Michael Wake, BSc, C.Eng. M R I N A
A s s o c i a t e Editor: T i m Knaggs C o n s u l t a n t Editor: Antony Preston S a l e s Director: Henry R. J a c k s o n A d v e r t i s e m e n t Manager K a r e n Roberts
Advertiseinent and Editorial A s s i s t a n t : Karen Roberts, BA
S u b s c r i p t i o n s and P u b l i c a t i o n s
Lesley Smithers
Editorial and Advertisement Office:
10 Upper Belgrave Street, London S W 1 X 8BQ, England. T e l e p h o n e : 01-235 4622/4. T e l e g r a m s : Sinai, L o n d o n . Telex: 265844 SINAI G Telefax: 01-245-6959 Printed in England by SuttonPrint Paignton, Devon.
T h e Institution is not as a body,
responsible for opinions expressed in Warship
Technology unless it is expressly stated
that these are the Council s views. © 1 9 8 8 : T h e Royal Institution of Naval Architects. This publication is copyright under the Berne Convenlion a n d the International Copyright Convention. All rights reserved. N o part of t h e publication may b e reproduced, stored in a retrieval system or transmitted without the prior permission of the copyright o w n e r s . Permission is not, however, required t o copy abstracts of papers or of articles on condition that a full reference to the source is s h o w n . Mutliple copying ol the
contents without permission is always illegal. A D V E R T I S E M E N T R E P R E S E N T A T I V E S ; G e r m a n y , A u s t r i a a n d S w i t z e r l a n d : T. A n i h o n y , A m Lerchenberg 2 2 , D - 2 1 1 2 Jesteburg b. H a m b u r g , G e r m a n y . T e l : (04183) 5 5 4 1 . Telefax: (04183) 5 5 4 3 Italy: Vittorio F. N e g r o n e , Ediconsult Internationale, Piazza Fontane fvlarose 3, 16123 G e n o a , Italy. T e l ; 5 4 3 . 6 5 9 ; 2 6 8 . 3 3 4 ; 268.513. Telex; 2 8 1 1 9 7 . S c a n d i n a v i a A.B. S t e p h a n R . G . O r n , P O Box 1 8 4 , S. 2 7 1 0 0 Ystad, S w e d e n . Tel; 46.411 18400. Telex; 3 3 3 3 5 O R N S .
Overview of "down-under" activities by K.J. Hope,
Director of Forward Design, RAN 38
SSKs — an attractive option by Antony Preston
: 45
Submarines and special forces by Desmond
Wettern 57
Hedemora diesel engine developments 60
Gears, clutches and couplings for the 1990s 61
^ • Noma — new developments on a proven fisheries
'"i^^^-^^-'J'Êi^ protection theme 65
CAD/CAM opportunities for the single-role
mine-hunter by C.J. Beames of Vosper Thornycroft
69
A review of human performance in a ship motion
environment by Surgeon Commander B.J.W.
\ Pingree 73
Front cover: Halsingland, second of the Vastergotland c l a s s submarines building
for the Swedish Navy.
The Naval Architect
International Journal of the Royal
Institution of Naval Architects
Editor: IVIichaei W a k e , BSc, C.Eng, M R I N A A s s o c i a t e Editor: T i m K n a g g s A d v e r t i s e m e n t M a n a g e r : G i l l i a n S m y t h A d v e r t i s e m e n t and Editorial A s s i s t a n t : L u c y M a c A r t h u r S u b s c r i p t i o n s and p u b l i c a t i o n s ; Lesley S m i t h e r s
Editorial and A d v e r t i s e m e n t Office:
10 U p p e r B e l g r a v e S t r e e t , L o n d o n S W I X 8 B Q T e l e p h o n e : 01-235 4 6 2 2 / 4 T e l e g r a m s : S i n a i , L o n d o n T e l e x : 2 6 5 8 4 4 S I N A I G T e l e f a x : 01-245-6959 T e n i s s u e s p u b l i s h e d p e r y e a r : J a n u a r y , F e b r u a r y , M a r c h , A p r i l , M a y , J u n e , J u l y , S e p t e m b e r , O c t o b e r a n d N o v e m b e r P r i n t e d in E n g l a n d b y E r r e y ' s P r i n t e r s L t d , H e a t h f i e l d , East S u s s e x . T h e I n s t i t u t i o n is n o t as a b o d y , r e s p o n s i b l e f o r o p i n i o n s e x p r e s s e d i n t h e The Naval Architect u n l e s s it is e x p r e s s l y s t a t e d t h a t t h e s e are t h e C o u n c i l ' s v i e w s . © 1 9 8 8 : T h e Royal I n s t i t u t i o n o f N a v a l A r c h i t e c t s . T h i s p u b l i c a t i o n is c o p y r i g h t u n d e r t h e B e r n e C o n v e n t i o n a n d t h e I n t e r n a t i o n a l C o p y r i g h t C o n v e n t i o n . A l l r i g h t s r e s e r v e d . N o part of t h i s p u b l i c a t i o n m a y b e r e p r o d u c e d , s t o r e d in a r e t r i e v a l s y s t e m o r t r a n s m i t t e d w i t h o u t t h e p r i o r p e r m i s s i o n o f t h e c o p y r i g h t o w n e r s . P e r m i s s i o n is n o t , h o w e v e r , r e q u i r e d t o c o p y a b s t r a c t s o f p a p e r s o r o f articles o n c o n d i t i o n t h a t a f u l l r e f e r e n c e t o t h e s o u r c e is s h o w n . Muitipie copying ofthe contents
without permission Is always illegal.
A D V E R T I S E M E N T R E P R E S E N T A T I V E S : G e r m a n y , A u s t r i a a n d S w i t z e r l a n d ; T. A n t h o n y , A m L e r c h e n b e r g 22, D - 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y . T e l : (04183) 5 5 4 1 . Italy: Vittorio F. N e g r o n e , E d i c o n s u l t I n t e r n a t i o n a l e , Piazza F o n t a n e M a r o s e 3 , 16123 G e n o a , Italy. T e l : 5 4 3 . 6 5 9 ; 268.334; 2 6 8 . 5 1 3 . T e l e x : 2 8 1 1 9 7 . S c a n d i n a v i a : A B S t e p h a n R. G . O m , P O B o x 184, S • 2 7 1 0 0 Y s t a d , S w e d e n . T e l ; 46.411 18400. T e l e x : 3 3 3 3 5 O R N S . A u d i t e d c i r c u l a t i o n 1987
J a n u a r y / D e c e m b e r 7,047
I S S N 0 3 0 6 - 0209
Ji
Naval Architect
D o r o t h y Gray is an innovative 'stern'
trawler delivered recently by McTay
Marine; she has no ramp and can process
both wet and frozen fish. See page El98.
How to build ships in the future
competitively: complete pre-outfitting of
engine-rooms (as now carried out here by
Bremer Vullon) is one tactic advocated by
Dr. Ing. H. Kerlen. See page E202.
C O N T E N T S
Tiiorneila: does Marr's new stern
trawler mark a turning point for
Britain'sfishing industry? E195
Dorothy Gray - a novel trawler for the
1990s E198
Shipyards for the future: how to remain
competitive E202
R e g u l a r F e a t u r e s
Commentary
.. . E187
. . . E189
Naval News
. . . E193
Trade & Equipment News . . . . .. . E210
RINAAffairs
. . . E211
. . . E216
T e c h n i c a l P a p e r
Vortex-Induced Heavy Vibrations in
Enclosed Hull Cavities, by
N. Okamura, H. Sasajima and
K. Tanida
The Naval Architect
International Journal of the Royal
Institution of Naval Architects
Editor: M i c h a e l W a k e , BSc, C . E n g , M R I N A A s s o c i a t e Editor: T i m K n a g g s A d v e r t i s e m e n t M a n a g e r : G i l l i a n S m y t h A d v e r t i s e m e n t and Editorial A s s i s t a n t : Lucy M a c A r t h u r S u b s c r i p t i o n s a n d p u b l i c a t i o n s : Lesley S m i t h e r s Editorial a n d A d v e r t i s e m e n t Office: 10 U p p e r B e l g r a v e S t r e e t , L o n d o n S W I X 8 B Q T e l e p h o n e : 01-235 4 6 2 2 / 4 T e l e g r a m s : S i n a i , L o n d o n T e l e x : 2 6 5 8 4 4 S I N A I G T e l e f a x : 0 1 - 2 4 5 - 6 9 5 9 T e n i s s u e s p u b l i s h e d p e r y e a r : J a n u a r y , F e b r u a r y , M a r c h , A p r i l , M a y , J u n e , J u l y , S e p t e m b e r , O c t o b e r a n d N o v e m b e r P r i n t e d in E n g l a n d b y E r r e y ' s P r i n t e r s L t d , H e a t h f i e l d , East S u s s e x . T h e I n s t i t u t i o n is n o t as a b o d y , r e s p o n s i b l e f o r o p i n i o n s e x p r e s s e d in t h e The Naval Architect u n l e s s it is e x p r e s s l y s t a t e d t h a t t h e s e are t h e C o u n c i l ' s v i e w s . © 1 9 8 8 : T h e Royal I n s t i t u t i o n o f N a v a l A r c h i t e c t s . T h i s p u b l i c a t i o n is c o p y r i g h t u n d e r t h e B e r n e C o n v e n t i o n a n d t h e I n t e r n a t i o n a l C o p y r i g h t C o n v e n t i o n . A l l r i g h t s r e s e r v e d . N o p a r t o f t h i s p u b l i c a t i o n m a y be r e p r o d u c e d , s t o r e d i n a r e t r i e v a l s y s t e m o r t r a n s m i t t e d w i t h o u t t h e p r i o r p e r m i s s i o n o f t h e c o p y r i g h t o w n e r s . P e r m i s s i o n is n o t , h o w e v e r , r e q u i r e d t o c o p y a b s t r a c t s o f p a p e r s o r o f a r t i c l e s o n c o n d i t i o n t h a t a f u l l r e f e r e n c e t o t h e s o u r c e is s h o w n . Multiple copying ofthe contents
without permission is always illegal.
A D V E R T I S E M E N T R E P R E S E N T A T I V E S : G e r m a n y , A u s t r i a a n d S w i t z e r l a n d : T. A n t h o n y , A m L e r c h e n b e r g 22, 0 - 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y , T e l : (04183) 5 5 4 1 . Italy: Vittorio F. N e g r o n e , E d i c o n s u l t I n t e r n a t i o n a l e , Piazza F o n t a n e M a r o s e 3, 16123 G e n o a , Italy. T e l : 5 4 3 . 6 5 9 ; 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . T e l e x : 2 8 1 1 9 7 . S c a n d i n a v i a : A B S t e p h a n R. G . O m , P O B o x 184, S • 2 7 1 0 0 Y s t a d , S w e d e n . T e l : 46.411 18400. T e l e x : 3 3 3 3 5 O R N S .
A B C
A u d i t e d c i r c u l a t i o n 1987J a n u a r y / D e c e m b e r 7,047
COIMTENTi
Ravi Tikkoo's dream for a 3,000
passenger cruise ship to be built at
Herland and Wolff E227
Innovative conversions can prove
more cost effective than
newbuildings E229
APL's CIO container liners: a new
high-speedtrans-Pacificlink .. E237
HQS«1PKCTK«
Side-loading conversion for Gorthon
Rederi's 7,182dwtsto-ra vessel Joh
G o r t h o n . See page E229.
R e g u l a r F e a t u r e s
Editorial
Comment
. . . E219
News Review
. . . E221
Naval News
. . . E225
Trade & Equipment News . . . . .. . E241
RINAAffairs
. . . E242
Diary
. . . E248
Thrustless propeller manufactured by
Bremer Vulkan to test the world's largest
diesel engines installed aboard APL's
latest newbuildings. See page E237.
I S S N 0306 - 0209
T h e N a v a l A r c h i t e c t I n t e r n a t i o n a l J o u r n a l o t t h e R o y a l I n s t i t u t i o n o t N a v a l A r c h i t e c t s E d i t o r : Michael W a k e , BSc, C. E n g , MRINA A s s o c i a t e E d i t o r : T i m K n a g g s A d v e r t i s e m e n t IVIanager: Gillian S m y t h A d v e r t i s e m e n t a n d E d i t o r i a l A s s i s t a n t : Debbie Bonner S u b s c r i p t i o n s a n d P u b l i c a t i o n s : Lesley Smithers E d i t o r i a l a n d A d v e r t i s e m e n t O f f i c e : 10 Upper Belgrave Street,
London S W 1 X 8 B Q . T e l e p h o n e : 01-235 4 6 2 2 / 4 . T e l e g r a m s : Sinai, L o n d o n . Telex: 2 6 5 8 4 4 SINAI G Telefax: 0 1 - 2 4 5 - 6 9 5 9 Ten issues published p e r year: J a n u a r y , February, M a r c h , April, M a y , J u n e , July, S e p t e m b e r , O c t o b e r a n d N o v e m b e r .
Printed in England by: Errey's Printers, Heathfield, East S u s s e x .
Ttie Institution is not as a b o d y , responsible for opinions expresserJ in the The Naval Architect unless it is expressly stateci that these are the Council's v i e w s .
© 1 9 8 8 : T h e Royal Institution of Naval Architects. This publication is copyright under the Berne C o n v e n l i o n a n d the International Copyright C o n v e n t i o n . All rights r e s e n / e d . No part of this publication m a y be r e p r o d u c e d , stored in a retrieval s y s t e m or transmitted without the prior permission of the copyright o w n e r s . Permission is not, however, required to c o p y abstracts of p a p e r s or of articles o n conditions that a full reference to the source is s h o w n . Multiple copying of the
contents without permission is always illegal.
A D V E R T I S E M E N T R E P R E S E N T A T I V E S :
North of England, Scotland and N. Ireland:
G e o r g e S o m m e r v i i l e , S o m m e n / i l l e International, 7 M a n s i o n House R o a d , North fylount V e r n o n , G l a s g o w G 3 2 ORP. T e i : (041) 7 7 8 - 1686.
Germany, Austria and Svjitzeriand:
T. Anthony, A m Lerchenberg 2 2 , D - 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y . Tei. (04183) 5 5 4 1 . Telefax: (04183) 5 5 4 3 .
Italy:
Vittorio F. N e g r o n e , Ediconsult Internationale, Piazza Fontane fylarose 3, 16123 G e n o a , Italy. T e l : 5 4 3 . 6 5 9 ; 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . T e l e x : 2 8 1 1 9 7 . Telefax: (10) 5 5 6 . 5 7 8 . Scandinavia; A B S t e p h a n R. G. O r n , P O Box 184, S 2 7 1 0 0 Y s t a d , S w e d e n . T e l ; 46.411 18400. T e l e x : 3 3 3 3 5 O R N S . T e l e f a x : (411) 1 0 5 3 1 . Korea:
C. H. Park, Far East (vlarketing Inc, C P O Box 7 0 8 1 , C h u n g - k u , Seoul, K o r e a . T e l : (2) 2 6 5 - 5 0 4 3 . T e l e x : K 2 5 5 4 S . T e l e f a x ; (2) 2 7 7 - 5 1 4 8 .
ABC
A u d i t e d circulation 1987 J a n u a r y / D e c e m b e r 7,047M
Naval Architect
C O N T E N T S
S E P T E M B E R
Seawartd: newest Wartsila-built
cruise liner for ttie NCL fleet
E259
A new flagship for Royal Cruise
Line
E270
Transmission systems for flexibility
and economy
E274
innovative cruise ship design: a davit-iaunched ianding stage for both liferafts and excursion iaunches on the new Greeli iiner, C r o w n O d y s s e y . See page E270.
R e g u l a r F e a t u r e
Editorial Comment.
ËSS'tl
News Review.
ES3S
Naval News
Ê2se
RINAAffairs.
IS27®
Diary.
Our feature on page E274 examines the latest trends in marine propulsion systems aimed at providing maximum operating flexibility and economy. Seen here is a Vulkan RATO elastic coupling between engine and alternator on Cunard's re-powered diesel-electric
QE2.
ISSN 0306 - 0 2 0 9
T h e Naval Architect International J o u r n a l of the R o y a l Institution of Naval A r c h i t e c t s E d i t o r : Michael W a k e , BSc, C. Eng, M R I N A A s s o c i a t e Editor: T i m K n a g g s A d v e r t i s e m e n t Manager: Gillian S m y t h A d v e r t i s e m e n t a n d Editorial A s s i s t a n t : Debbi Bonner S u b s c r i p t i o n s a n d P u b l i c a t i o n s : Lesley Smithers Editorial a n d A d v e r t i s e m e n t O f f i c e :
10 Upper Belgrave Street, London S W 1 X 8 B Q . T e l e p h o n e : 01-235 4 6 2 2 / 4 . T e l e g r a m s : Sinai, L o n d o n . Telex: 2 6 5 8 4 4 SINAI G Telefax: 01-245-6959 T e n issues published per year: J a n u a r y , February, M a r c h , April, M a y , J u n e , July, September, October a n d N o v e m b e r .
Printed in England by: Errey's Printers, Heathfield, East Sussex.
T h e institution is not as a b o d y , responsible for opinions expressed in the The Naval Architect unless it is expressly s t a t e d that these a r e the Council's v i e w s .
© 1988: T h e Royal Institution of Naval Architects. This publication is copyright under the B e r n e C o n v e n l i o n a n d the International Copyright C o n v e n t i o n . A l l rights r e s e r v e d . No part of this publication m a y be r e p r o d u c e d , stored in a retrieval s y s t e m or transmitted without the prior permission of the copyright o w n e r s . Permission is not, however, required to c o p y abstracts of papers or of articles on conditions that a full reference t o the source is s h o w n . Multiple copying ofthe
contents without permission is always illegal.
A D V E R T I S E M E N T R E P R E S E N T A T I V E S :
North of England, Scotland and N. Ireland:
G e o r g e S o m m e r v i i l e , Sommerviile International, 7 li/lansion H o u s e Road, North f^tount V e r n o n , G l a s g o w G 3 2 ORP. T e i : (041) 7 7 8 - 1 6 8 6 .
Germany, Austria and Switzerland;
T. Anthony, A m Lerchenberg 22, D - 2 1 1 2 J e s t e b u r g b. H a m b u r g , G e r m a n y . Tel. (04183) 5 5 4 1 . Telefax: (04183) 5 5 4 3 . I t a l y :
Vittorio F. Negrone, Ediconsult Internationale, Piazza Fontane fvlarose 3, 16123 G e n o a , I t a l y T e l ; 5 4 3 . 6 5 9 ; 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . Telex; 2 8 1 1 9 7 . Telefax; (10) 5 6 6 . 5 7 8 . Scandinavia: A B S t e p h a n R. G. O r n , P O Box 184, 8 - 2 7 1 2 4 Y s t a d , S w e d e n . T e l : 46.411 1 8 4 0 0 . Telex: 3 3 3 3 5 O R N S . T e l e f a x ; (411) 1 0 5 3 1 . Korea:
C. H. Park, Far East N/larketing Inc, C P O Box 7 0 8 1 , C h u n g - k u , S e o u l , K o r e a . T e l ; (2) 2 6 5 - 5 0 4 3 . Telex; K 2 5 5 4 8 . Telefax; (2) 277-5148. Audited circulation 1987
ABC
January D e c e m b e r 7,047J
Naval Architect
ISSN 0 3 0 6 - 0209Resurrection of the large contra-rotating propeller. Japan's maritime industries have been putting much effort into future technology, and both IHI and Mitsubishi have full-scale
contra-rotating ropeller systems complete. Seen here is Mitsubishi's prototype set, which has been retrofitted to the nine-year old car e a r n e r T o y o f uji 5. IHI's propeller will be retrofitted to a F.uture 32 cargo ship. Our special feature on page E305 discusses Japan's efforts to return to profitable shipbuilding and marine engineering.
I C T O B E R
Eight new 'megayacht' cruise
liners take shape in Italy for a
US/Norwegian consortium
E300
A new series of 3,OOOdwt
chemical tankers from
Nords0vaerftet
E303
Sunset or sunrise?Japan's
maritime industries examined in
the wake of the cutbacks
E305
R e g u l a r F e a t u r e s
Editorial Comment.
S287
News Review.
E288
Naval News
E296
Update ,
E297
Propulsion Round-up
E299
Trade and Equipment News.
E301
RINAAffairs.
E314
Diary.,
isam
T e c h n i c a l P a p e r
The Application of a Welding Robot for
Small Batch Manufacturing in
Shipbuild-ing, by C. Kuo and J. M. Kalogerakis
T h e Naval Architect International J o u r n a l of the R o y a l Institution of Naval A r c h i t e c t s E d i t o r : Michael W a k e , BSc, C. Eng, M R I N A A s s o c i a t e Editor: T i m Knaggs A d v e r t i s e m e n t Manager: Giiiian Smyth A d v e r t i s e m e n t a n d Editorial A s s i s t a n t : Debbi Bonner S u b s c r i p t i o n s a n d P u b l i c a t i o n s : Lesley Smithers Editorial a n d A d v e r t i s e m e n t Office:
10 Upper Belgrave Street, London S W I X 8 B Q . Telephone: 01-235 4 6 2 2 / 4 . T e l e g r a m s : Sinai, L o n d o n . Telex: 2 6 5 8 4 4 SINAI G Telefax: 01-245-6959 Ten issues ptjblished p e r year: January, February, M a r c h , April, M a y , J u n e , July, September, October a n d N o v e m b e r .
Pnnted in England b y : Errey's Printers, Heathfield, East Sussex.
Tfie Institution is not as a body, responsible for opinions expressed in The Naval Architect un\ess it is expressly stated that t h e s e are the Council's viev/s.
© 1988: T h e Royal Institulion of Naval Architects. This publication is copyright under the Berne Convention a n d the International Copyright Convention. All rights resen/ed. No part of this publication m a y be r e p r o d u c e d , stored in a retrieval system or transmitted without the prior permission of the copyright o w n e r s . Permission is not, however, required to c o p y abstracts of papers or of articles o n conditions that a full reference to the source is s h o w n . Multiple
copying of Ihe contents without permission is always illegal.
A D V E R T I S E M E N T R E P R E S E N T A T I V E S :
North ol England, Scotland and N. Ireland:
George Sommerviile, Sommerviile international, 7 Ivlansion House R o a d , North Ivlount V e r n o n , Glasgow G 3 2 ORP. T e i : (041) 778 - 1 6 8 6 .
Germany, Austria and Switzerland:
T. Anthony, A m Lerchenberg 2 2 , D - 2 1 1 2 Jesteburg b. H a m b u r g , G e r m a n y . Tel. (04183) 5 5 4 1 . Telefax: (04183) 5 5 4 3 .
Italy:
Vittorio F. N e g r o n e , Ediconsult Internationale, Piazza Fontane Marose 3 , 1 6 1 2 3 G e n o a , Italy. Tel: 5 4 3 . 6 5 9 ; 2 6 8 . 3 3 4 ; 2 6 8 . 5 1 3 . Telex; 2 8 1 1 9 7 . Telefax; (10) 5 6 6 . 5 7 8 . Scandinavia: A B S t e p h a n R. G. O r n , PO B o x 184, S.271 2 4 Y s t a d , S w e d e n . T e l ; 46.411 18400. Telex; 3 3 3 3 5 O R N S . T e l e f a x : (411) 1 0 5 3 1 . Korea:
C. H. Park, Far East Marketing Inc, C P O Box 7 0 8 1 , C h u n g - k u , S e o u l , Korea. T e l ; (2) 265-5043. Telex; K 2 5 5 4 8 . Telefax; (2) 2 7 7 - 5 1 4 8 .
ABC
Audited circulation 1987 January D e c e m b e r 7,047 ISSN 0 3 0 6 - 0 2 0 9Most practical catamaran experience in the vehicle ferry field has been
accumulated in Japan. New prospects of seeing such ships in Europe is offered by a revolutionary design intended for Norway's multitude of ferry routes. The model of an 82m ferry is seen here being tested at the SSPA tank, Gothenburg. See page E334.
Sulzer is entering the packaged propulsion set market with its new S20 long-stroke, medium-speed engine. See Propulsion Round-up, page E340.
