Contents of The Naval Architect, 1973

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J A N U A R Y 1973

No. 1

Journal o f t h e R o y a l Institution of Naval Architects

Published quarterly In January, A p r i l , July and October by the R I N A ,

10 Upper Belgrave Street, L o n d o n S W 1 X 8 B Q . T e l e p h o n e ; 01 235 4622/3 T e l e g r a m s : Slnal, L o n d o n .

Printed by Unwin Brothers Limited Old W o k i n g , Surrey

Editor: R. F. Burnett, B.Sc.

Cover illustration: 'London Clipper' —second in a series of eight 23-knot refrigerated cargo vessels building at S m i t h ' s Dock, Teesside, for t h e Island Fruit Reefers S h i p p i n g Co.

T h e Institution Is not as a body, r e s p o n -sible f o r opinions expressed in 'The Naval A r c h i t e c t ' unless It Is expressly stated that these are fhe C o u n c i l ' s views. T h e Editor will consider any written requests t o reproduce articles and illus-trations appearing In t h i s j o u r n a l . A d v e r t i s e m e n t Department: ' T h e Naval A r c h i t e c t ' Peter Peregrinus Ltd., PO Box 8, Southgate Flouse, Stevenage, Herts, S G I 1HQ T e l . Stevenage 3311. S U B S C R I P T I O N R A T E S : Single copy £3.50 ($8.50) One year £12.00 ($29.00)

Free t o members of the I n s t i t u t i o n .

C O N T E N T S

Editorial Comments 3 Quarterly News Review 4

Main A r t i c l e s

Bow and stern sinkage of a tanker under way in shallow water—

a graphical method of estimating squat 6 Exploiting ocean resources

by P. W. Penney, MSc, MRINA. 9 A review of LPG tanker design ahd development 14

Shorter articles and regular features

Letter to the Editor 5 Roll-on, roll-off ship with angled stern ramp for Russia 5

Largest ferrocement yacht built in Britain 8 The U.S. Navy's deep diving submarine rescue vehicle 12

Forthcoming Technical Meetings ' 18

Book Reviews 24 Formation of a DTI bridge design study group 26

CEl News 27

R I N A Affairs including;

Annual Dinner and forthcoming meetings, new paper for

wntten discussion 19 Marine Pollution Symposium—summaries of papers 20

Rules governing admission to the Institution 21

Branch News, Personal Notes 22

RINA Publications 28

T E C H N I C A L P A P E R S

(with discussions and authors' replies) British Shipbuilding in Today's World

by Norman A . Sloan, BL, QC. 1 Lifeboats versus Inflatable Liferafts: A Comparison of Costs

and Benefits

by B. M. Gardner, B A , and R. O. Goss, M A , FCIT. 19 Towards Economic Warship Acquisition and Ownership

by K. J. Rawson, RCNC, FRINA. 43 HMCS BRAS D'OR—Sea Trials and Future Prospects

by M. C. Eames, BSc, FRINA, and T. G. Drummond, B A S c ,

SM, NE. 69

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THE NAVAL

ARCHITECT

A P R I L 1973 No. 2 J o u r n a l o f t h e R o y a l Institution of Naval Architects

Published quarterly in January, A p r i l , July and October by the R I N A ,

10 Upper Belgrave Street, L o n d o n SW1X 8BQ. T e l e p h o n e : 01 235 4622/3 T e l e g r a m s : Slnal, L o n d o n .

Cover illustration: ' M u n c h e n ' — delivered recently by Cockerill Y a r d s , Hoboken, for the C o m b I Line's Transatlantic L A S H service, w h i c h is reviewed In t h i s issue.

T h e Institution Is not as a body, r e s p o n -sible f o r opinions expressed In ' T h e Naval A r c h i t e c t ' unless It Is expressly stated that these are fhe C o u n c i l ' s views. T h e Editor will consider any written requests to reproduce articles and Illus-trations appearing in this journal.

A d v e r t i s e m e n t D e p a r t m e n t : ' T h e Naval A r c h i t e c t '

Peter Peregrinus Ltd., PO Box 8, Southgate House, Stevenage, Herts, S G I 1HQ Tel. Stevenage 3311.

A B C A u d i t e d c i r c u l a t i o n ;

J u l y - D e c e m b e r 1972 6399

S U B S C R I P T I O N R A T E S : Single copy £3.50 ($8.50) One year £12.00 ($29.00)

Free to members of the I n s t i t u t i o n .

A P R I L 1973

C O M T E M T S Editorial Comments Quarterly News Review

Main Articles

The 'Great Eastern' Steamship by J. H. Large

Barge carriers—a revolution in marine transport A review of systems and services by the Editor New developments in ramp technology lead to

the 'go-anywhere' Ro-Ro ship by R. A . B. Sim

Shorter articles and regular features

The EEC and the future of European shipbuilding and shipping Letters to the Editor

The use of scissor lifts on roll-on, roll-off ships Forthcoming Technical Meetings

Some Available Services

A fast fire-protected lifesaving system for oil rigs Book Reviews

C E I N e w s

R I N A Affairs including:

RINA Publications

Spring Meetings programme

Forthcoming Symposium on Ducted Propellers Awards, prizes and scholarships

The newly elected Honorary Vice-presidents Branch News, new paper for written discussion Personal Notes

(with discussion and authors' replies)

Manoeuvring Trials with the 193 000 Tonne Deadweight Tanker 'Esso Bernicia'

by D. Clarke, BSc, DLC, MRINA, D. R. Patterson, BSc, MRINA and R, K. Wooderson, BSc.

Vibratory Hull Forces Induced by Cavitating Propellers by P. van Oossanen, MSc and J. van der Kooy, MSc.

33 34 36 39 43 35 38 47 48 49 50 51 60 31 53 54 56 57 59 60 89 111 2 9

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THE NAVAL

ARCHITECT

JULY 1973 No. 3

J o u r n a l of the R o y a l Institution of Naval Architects

A p r i l , Published quarterly In January, J u l y and October by the R I N A , 10 Upper Belgrave Street, L o n d o n S W 1 X 8 B Q . T e l e p h o n e : 01 235 4622/3 T e l e g r a m s : Slnal, L o n d o n .

Printed by U n w i n Brothers Limited O l d W o k i n g , Surrey

Cover illustration: A 37.5 m f a s t patrol craft f o r t h e Sultanate of O m a n designed and built by Brooke Marine Ltd., Lowestoft. See our News Review.

T h e Institution Is not as a body, r e s p o n -sible for opinions expressed in ' T h e Naval A r c h i t e c t ' unless It Is expressly stated that these are the C o u n c i l ' s views.

T h i s publication Is copyright. A l l rights reserved. The Editor will consider written requests t o r e p r o d u c e articles and illustra-t i o n s appearing In illustra-t h e J o u r n a l . Mulillustra-tiple c o p y i n g o f t h e c o n t e n t s w i t h o u t permission is illegal. A B C I A u d i t e d c i r c u l a t i o n : J u l y - D e c e m b e r 1972 6 399 S U B S C R I P T I O N R A T E S : Single copy £3.50 ($8.50) One year £12.00 ($29.00) Free t o members o f t h e I n s t i t u t i o n . J U L Y 1973 C O N T E N T S Editorial Comment 65 Quarterly News Review 66

Main Articles

Considerations in simulating the approach pilotage and berthing of a very large crude carrier

by K. C. Davis 69 Cargo handling in modern unit load pallet ships

by R. Clark, FRINA. 71 The Graveney Boat find—a reconstruction

by Cdr. J. E. G. McKee, RN. 75 The trend to mechanised welding in shipbuilding

by T. H. North, MSc, MInstW, and D. C. McNeill, MSc. 77

Shorter Articles and Regular Features

Forecasts of world ship demand—Booz-Allen 68

Letters to the Editor 82 The Baltic Exchange—World's greatest shipping market 83

Forthcoming Technical Meetings 84

Book Reviews 85 CEl News 92

R I N A Affairs including:

RINA Publications 86 New Corporate Membership—Nautical Studies 87

Future meetings, new paper for written discussion 87

The A G M and Report of Council for 1972 88

The Annual Dinner, April 1973 89 Queen's Birthday Honours 90

Personal Notes 91 Obituaries, Branch News 92

(with discussion and authors' replies)

A Method of Predicting Trial Performance of Single Screw Merchant Ships

by J. R. Scott, BSc, FInstP, FRINA.

Dimensional Control of Steelwork in Merchant Shipbuilding by V. E. Braid, BSc, MIMechE.

On the Scale Effect on Thrust Deduction by Dr. Gilbert Dyne, MRINA.

149 173 187

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THE NAVAL

ARCHITECT

OCTOBER 1973 No. 4

J o u r n a l o f t h e R o y a l Institution of Naval Architects

Published quarterly In January, A p r i l , July and October by the R I N A ,

10 Upper Belgrave Street, London S W 1 X 8BQ. T e l e p h o n e ; 01 235 4622/3 T e l e g r a m s : Slnal, L o n d o n .

Editor: R. F. Burnett, BSc, M R I N A .

Cover illustration: A r t i s t ' s impres-sion of the ' D a l m a h o y ' , a new drilling ship conversion for S a l -vesen O f f s h o r e Drilling Ltd. of Edinburgh. Described In t h i s Issue.

T h e Institution is not as a body, r e s p o n -sible for opinions expressed In 'The Naval A r c h i t e c t ' unless It Is expressly stated that these are the Council's views.

T h i s publication Is copyright. A l l rights reserved. T h e Editor will consider written requests t o reproduce articles and illustra-t i o n s appearing in illustra-the J o u r n a l . Mulillustra-tiple c o p y i n g o f t h e contents w i t h o u t permission is illegal.

A d v e r t i s e m e n t Manager: Bryan H. Jackson

A u d i t e d c i r c u l a t i o n ;

J u l y - D e c e m b e r 1972 6399

S U B S C R I P T I O N R A T E S : Single copy £3.50 ($8.50) One year £12.00 ($29.00)

Free t o members of the I n s t i t u t i o n .

O C T O B E R 1973

C O N T E N T S

Editorial Comments 99 Quarterly News Review 100

Main Articles

George Atwood's contributions to scientific naval architecture

by C. H. Cotter 101 Underwater operations with submersibles—notes from an RINA

Australian Branch paper by G. G. Mott, BMechE, MRINA. 104 Drilling ships for exploiting the oceans—progress in this

specialised field reviewed by the Editor 106 Boat davits—design developments

by J. B. Francey, FRSA, FSA Scot. I l l Ship-based equipment to remove marine growth from the hull

by P. K. Kulkarni, BSc, MRINA. 113 Preliminary report o f t h e Concrete Society on ferrocement

vessels 115

Shorter Articles and Regular Features

Rescue of the 'Pisces JH' submersible from the ocean floor 103

New hydrofoil with waterjet propulsion 110

Letters to the Editor 116 Book Reviews 117 Technical Meetings 118 Research Notes, CEl News 123

Sl units—Table of Conversion Factors inside back cover

R I N A Affairs including;

Future meetings, availability of BSRA Abstracts Branch meeting programmes

New papers for written discussion. Parsons Memorial Lecture Deeds of Covenant, Personal Notes

(with discussion and authors' replies) Accommodation in Ships

by M. Meek, BSc, FRINA and N. Ward, RDl, B A r c h , RIBA FSIA.

Hydrographic Survey or Research Ship by B. Baxter, MSc, FRINA.

The Squat of Full Ships in Shallow Water

by I. W. Dand, BSc, PhD, MRINA and A. M. Ferguson, MSc, FRINA.

On the Structural Dynamics of Ship Hulls in Waves by R. E. D. Bishop, R. Eatock Taylor and K. L. Jackson

119 120 121 122 201 219 237 257 93