Contents of The Naval Architect, 1974

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THE NAVAL

^"^CHITECT

J A N U A R Y 1974 N o . 1

J o u r n a l of t h e R o y a l 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

Published quarterly In January, 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 . P r i n t e d by U n w i n Brothers Limited Old W o k i n g , Surrey Editor: R. F. Burnett, BSc, M R I N A . A p r i l ,

Cover illustration: T h e second

Y a r r o w frigate, H T M S . 'Makut Raja-kumarn', completed by Yarrow (Shipbuilders) Ltd., for t h e Royal T h a i Navy. 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 c o p y r i g h t . A l l rights reserved. T h e 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 i s i l l e g a l .

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

Audited circulation: July-December 1972 6 399

S U B S C R I P T I O N R A T E S : s i n g l e 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 .

J A N U A R Y 1974 C O N T E N T S E d i t o r i a l C o m m e n t s Q u a r t e r l y N e w s R e v i e w IVlain A r t i c l e s T h e w o r l d b u l k c a r r i e r m a r k e t — a s u p p l y / d e m a n d f o r e c a s t f o r t h e 1970s D e v e l o p m e n t of a n a u t o p i l o t t o c o n t r o l y a w a n d roll by W . E, C o w l e y , B S c , P h D A r t i c u l a t e d r u d d e r s — p a s t a n d p r e s e n t C o a s t a l t r a n s p o r t a n d a s s e m b l y of hull u n i t s : S c a n d i n a v i a n s h i p b u i l d i n g e x p e r i e n c e by Dr. N i l s L e w a n S h o r t e r A r t i c l e s a n d R e g u l a r F e a t u r e s R e p o r t on t h e I M C O M a r i n e P o l l u t i o n C o n f e r e n c e N e w c o v e r e d s h i p b u i l d i n g f a c t o r y f o r t h e River W e a r N a v a l s h i p b u i l d i n g in t h e U.K. L e t t e r s t o t h e E d i t o r R e s e a r c h a n d E d u c a t i o n : i n c l u d i n g B S R A d u r i n g 1973, T o t a l t e c h n o l o g y , N a v i g a t i o n a l h y d r o d y n a m i c s T e c h n i c a l M e e t i n g s B o o k R e v i e w s CEl N e w s R I N A A f f a i r s i n c l u d i n g : A n n u a l D i n n e r , S p r i n g a n d W e s t E u r o p e a n m e e t i n g s p r o g r a m m e s S m a l l C r a f t , O c e a n E n g i n e e r i n g , S h i p C o n t r o l g r o u p s Four n e w p a p e r s f o r w r i t t e n d i s c u s s i o n B r a n c h N e w s , P e r s o n a l N o t e s T a b l e of q u a l i f i c a t i o n s f o r m e m b e r s h i p T E C H N I C A L P A P E R S ( w i t h d i s c u s s i o n s a n d a u t h o r s ' r e p l i e s ) T h e I m p a c t o f t h e G a s T u r b i n e o n t h e D e s i g n of M a j o r S u r f a c e W a r s h i p s by S. J . P a l m e r , C B , C B E , R C N C , F R I N A T h e W e l d i n g of H i g h e r T e n s i l e S h i p b u i l d i n g S t e e l s by J . E. C h a d b u n d , B E n g , C E n g , a n d G. R. S a l t e r , B S c , P h D , F W e l d l H y d r o d y n a m i c C o n s i d e r a t i o n s i n t h e D e s i g n of C o n d e n s e r C o o l i n g W a t e r S y s t e m s f o r L a r g e S h i p s by J . W . E n g l i s h B S c , P h D , W h S c , C E n g , F R I N A A D e s i g n S c h e m e f o r S h i p S t r u c t u r e s by G. K. S m i t h B S c , M R I N A , a n d R. G . W o o d h e a d B S c . 11 12 14 18 20 23 16 17 22 22 26 28 29 36 31 32 33 34 36 13 31 47 1

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THE NAVAL

ARCHITECT

A P R I L 1974 N o . 2

J o u r n a l o f t h e R o y a l 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

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 8 B 0 . T e l e p h o n e : 01 235 4622/3 T e l e g r a m s : Sinai, L o n d o n .

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

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

Cover illustration: T h e s e t w o 'Free

Enterprise' ferries, I and II, have bow t h r u s t units and t w i n Stone M a n g -anese c p . propellers. Manoeuvring devices In ships and ferries are reviewed In this Issue.

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 t h e C o u n c i l ' s views.

T h i s publication Is c o p y r i g h t . A l l rights reserved. T h e Editor will consider written requests to reproduce articles and Illustra-t i o n s appearing In Illustra-the J o u r n a l . MulIllustra-tiple copying o f t h e c o n t e n t s w i t h o u t permission i s i l l e g a l .

Audited circulation:

January-December 1973 6 447

S U B S C R I P T I O N R A T E S : s i n g l e 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 1974 C O N T E N T S E d i t o r i a l C o m m e n t s Q u a r t e r l y N e w s R e v i e w IVlain A r t i c l e s E x p l o s i o n s i n c o m b i n a t i o n c a r r i e r s — A n I C S r e p o r t M a n o e u v r i n g d e v i c e s In s h i p s — a r e v i e w by t h e E d i t o r M a n o e u v r i n g e q u i p m e n t in m o d e r n C h a n n e l f e r r i e s A R e t u r n t o S a i l ? by C. J . E d m o n d s , B S c A r e p o r t on t h e f i r s t m e e t i n g of t h e R I N A S h i p C o n t r o l G r o u p S h o r t e r A r t i c l e s a n d R e g u l a r F e a t u r e s T h e p o l i c i e s a n d t a n k e r f l e e t s of t h e o i l e x p o r t i n g n a t i o n s M a r c o n i — t h e f a t h e r of w i r e l e s s (1874-1937) T h e s k i n f r i c t i o n b o g e y by J . A . H. P a f f e t t , R C N C , F R I N A S o m e n o t e s o n r u d d e r s f o r m o d e r n w a r s h i p s A r a c e t o b e a t t h e f a s t e s t c l i p p e r s L e t t e r t o t h e E d i t o r T e c h n i c a l M e e t i n g s B o o k R e v i e w s E d u c a t i o n a n d R e s e a r c h CEl N e w s — G r a h a m C l a r k L e c t u r e R I N A A f f a i r s i n c l u d i n g : F o r t h c o m i n g m e e t i n g s , i n c l u d i n g t h e W e s t E u r o p e a n C o n f e r e n c e S u m m a r i e s of S p r i n g M e e t i n g P a p e r s N e w P a p e r f o r W r i t t e n D i s c u s s i o n B r a n c h N e w s P e r s o n a l N o t e s A v y a r d s , p r i z e s a n d s c h o l a r s h i p s 43 44 47 51 57 59 61 46 49 50 58 60 62 63 64 65 66 67 68 69 70 71 72 T E C H N I C A L P A P E R S ( w i t h d i s c u s s i o n s a n d a u t h o r s ' r e p l i e s ) D a m a g e S t a b i l i t y M o d e l E x p e r i m e n t s by H. B i r d , F R I N A , a n d R. P. B r o w n e , B S c , P h . D , M R I N A E s t i m a t i o n of W i n d F o r c e s on O f f s h o r e D r i l l i n g P l a t f o r m s by J . E. A g u i r r e , B S c , D I C , M S c , a n d T . R. B o y c e , B A S c , M A S c D I C , P h D , M I M e c h E , P E n g A D e s i g n M e t h o d f o r t h e H e a v i l y L o a d e d M a r i n e P r o p e l l e r by E. J . G l o v e r , B S c , P h D , F R I N A 111 37 69 93

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THE NAVAL

ARCHITECT

J U L Y 1974 N o . 3

Published quarterly In January, July and October by the R I N A , 10 Upper Belgrave Street, L o n d o n 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 .

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

Editor: R. F. Burnett, BSc, M R I N A . A p r i l ,

Cover illustration: T h e 'Orkney

Shore', a 4 000-bhp tug supply vessel built by Richards ( S h i p

-builders) Ltd at L o w e s t o f t In 1973. S o m e recent supply s h i p s are reviewed \n this 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 C o u n c i l ' s views.

T h i s publication Is c o p y r i g h t . A l l rights reserved. T h e Editor will consider written r e q u e s t s 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 I s i l l e g a l .

ABC

Audited circulation; January-December 1973 6 447 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 o f t h e I n s t i t u t i o n . J U L Y 1974 C O N T E N T S E d i t o r i a l C o m m e n t s Q u a r t e r l y N e w s R e v i e w IVlain A r t i c l e s S u p p l y s h i p s t o m e e t t h e g r o w i n g d e m a n d s of t h e o f f s h o r e i n d u s t r y — A r e v i e w by t h e Editor A l t e r n a t i v e a p p r o a c h e s t o s h i p a n d o c e a n v e h i c l e s t a b i l i t y c r i t e r i a by C. K u o , F R I N A , a n d Y. O d a b a s i Is it r i g h t t o r i g h t ? T h e d e v e l o p m e n t of t h e s e l f - r i g h t i n g l i f e - b o a t by S t u a r t W e l f o r d , M R I N A T h e c a s e f o r a c t i v a t e d f i n s t a b i l i s a t i o n by R. P a l m e r S h o r t e r A r t i c l e s a n d R e g u l a r F e a t u r e s I H C ' s c o v e r e d s h i p y a r d at K i n d e r d i j k R o t a t i n g a n d s l i d i n g s y s t e m f o r b u i l d i n g l a r g e t a n k e r s U n d e r w a t e r c o a t i n g f r o m a s h i p o w n e r ' s v i e w p o i n t by J . J a c k s o n R e s e a r c h CEl N e w s — i n c l u d i n g s u r v e y of p r o f e s s i o n a l e n g i n e e r s L e t t e r s t o t h e E d i t o r B o o k R e v i e w s T e c h n i c a l M e e t i n g s R I N A A f f a i r s i n c l u d i n g ; F o r t h c o m i n g m e e t i n g s , t h e O c e a n E n g i n e e r i n g p r o g r a m m e , n e w p a p e r s f o r w r i t t e n d i s c u s s i o n A G M a n d R e p o r t of C o u n c i l f o r 1973 A n n u a l D i n n e r , A p r i l 1974 T h e f i r s t m e e t i n g of t h e R I N A S m a l l C r a f t G r o u p R e p o r t o n W E M T , a n d P e r s o n a l N o t e s O b i t u a r i e s T E C H N I C A L P A P E R S ( w i t h d i s c u s s i o n a n d a u t h o r s ' r e p l i e s ) T h e R e l a t i v e C o s t s of S h i p D e s i g n P a r a m e t e r s by K. W . F i s h e r , B S , M S E , P h D , M R I N A T h e R e p a i r of V e r y L a r g e O i l a n d B u l k C a r r i e r s by C. C a r r e i r a , E n g l S T A M e t h o d of P r e d i c t i n g T r i a l P e r f o r m a n c e of T w i n S c r e w M e r c h a n t S h i p s by J . R. S c o t t , B S c , F i n s t P , F R I N A List of C o u n c i l 79 80 83 88 93 99 82 91 92 98 100 101 103 104 105 106 108 109 110 111 129 157 175 187 73

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THE NAVAL

ARCHITECT

O C T O B E R 1974

N o . 4

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 0 . T e l e p h o n e : 01 235 4622/3 T e l e g r a m s : S l n a l , L o n d o n . Printed by U n w i n B r o t h e r s Limited Old W o k i n g , Surrey Editor: R. F. Burnett, BSc, M R I N A .

Cover illustration: T h e 'Dana

Reglna' built by A a l b o r g Vaerft for D F D S , entering the T h a m e s prior to hér malden voyage f r o m Harwich to Esbjerg In July. ,

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 the C o u n c i l ' 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 copying o f t h e c o n t e n t s w i t h o u t permission I s i l l e g a l .

Audited circulation: January-December 1973 6 447

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 1974 C O N T E N T S E d i t o r i a l C o m m e n t s Q u a r t e r l y N e w s R e v i e w M a i n A r t i c l e s T h e i m p a c t of t h e o i l c r i s i s on s h i p s a n d t h e i r d e s i g n by I. L. B u x t o n , B S c , P h D , F R I N A F r a c t u r e m e c h a n i c s in naval a r c h i t e c t u r e by P. R. C h r i s t o p h e r , B S c , M R I N A B R I T S H I P S — c o m p u t e r i s i n g f r o m s t e m to s t e r n by R. A . B. S i m S h o r t e r A r t i c l e s a n d R e g u l a r F e a t u r e s ' D a n a R e g l n a ' — a D a n i s h s h o r t s e a p a s s e n g e r / v e h i c l e l i n e r ' S t a r m a n ' — a heavy l i f t r o l l - o n s h i p f o r 1 000-ton l o a d s N e w s u b m e r s i b l e N o r t h S e a r e s c u e v e s s e l f r o m S w e d e n S e n a l s i g n a l l i n g s c h e m e t o r e d u c e s h i p s ' w i r i n g L e t t e r s t o t h e E d i t o r R e s e a r c h a n d E d u c a t i o n , i n c l u d i n g a i m s of t h e S M T R B , a n d N a t i o n a l C e r t i f i c a t e s B o o k R e v i e w s ' O i l H u n t e r ' — a n e w B r i t i s h s e i s m o g r a p h i c s u r v e y s h i p T e c h n i c a l M e e t i n g s CEl N e w s R I N A A F F A I R S i n c l u d i n g F o r t h c o m i n g m e e t i n g s O c e a n E n g i n e e r i n g S y m p o s i u m , s u m m a r i e s of p a p e r s Four n e w p a p e r s f o r w r i t t e n ^ ' d i s c u s s i o n B r a n c h N e w s First M a r i t i m e T e c h n o l o g y ^ M o n o g r a p h ( M T M ) P e r s o n a l N o t e s O b i t u a r i e s T E C H N I C A L P A P E R S ( w i t h d i s c u s s i o n a n d a u t h o r s ' r e p l i e s ) P o s t W a r R N F r i g a t e a n d G u i d e d M i s s i l e D e s t r o y e r D e s i g n , 1944-1969 by M. K. P u r v i s , R C N C , F R I N A A n c h o r i n g a n d M o o r i n g E q u i p m e n t o n S h i p s by A . K. B u c k l e , B S c , F R I N A S e r v i c e P e r f o r m a n c e of a D r i l l i n g U n i t by A . O. B e l l , M R I N A 121 122 125 129 133 123 124 128 135 136 138 140 141 142 149 143 144 145 146 147 148 149 189 223 243 113