Proceedings of the 12th AIAA Symposium on the Aero/Hydronautics of Sailing, San Francisco, California, USA, October 30 and 31, 1982 (summary)

P1982-9

THE ANCIENT INTERFACE

S B

3

^ m

r-PROCEEDINGS O F T H E

TWELFTH AIAA SYMPOSIUM

ON THE

AERO/HYDRONAUTICS OF SAILING

The American Institute of Aeronautics and Astronautics and

The Society of Naval Architects and Marine Engineers

§

Co-Sponsored by:

VOLUME 28

Faculty WbMT

Dept. of Marine Technology

Stanford University , i ^

Department of Aeronautics and Astronautics Mekelweg 2, 2628 CD Deift

University of California (Berkeley) Netheriands Department of Naval Architecture

and Offshore Engineering

The San Francisco Bay Yacht Racing Association The Oceanic Society, San Francisco Bay Chapter

Edited by Gordon Firestein

T H E ANCIExNT INTERFACE

XM

12th Annual AIAA Symposium of Sailing

Saturday and Sunday, October 30 and 31,1982

San Francisco, California

—

Published and distributed by:

13000 Raymer Street

North Hollywood. California 91605

FOREWARD The A n c i e n t I n t e r f a c e was c r e a t e d as a f o r u m f o r t h e e x c h a n g e o f i d e a s by y a c h t s m a n , a e r o d y n a m i c i s t s and d e s i g n e r s , a b o u t t h e v a r i o u s e l e m e n t s o f w i n d p r o p u l s i o n t h r o u g h w a t e r . I t was o r g a n i z e d i n 1968 by P e t e r L i s s a m a n ( o f Gossamer C o n d o r and A l b a t r o s s f a m e ) , J a c k S t e p h e n s o n a n d B e r n i e P e r s h i n g , w i t h t h e b l e s s i n g o f t h e A e r o -s p a c e R e l a t e d A p p l i c a t i o n -s C o m m i t t e e o f t h e L o -s A n g e l e -s S e c t i o n o f t h e AIAA. T h e y a l s o s o l i c i t e d t h e s p o n s o r s h i p o f t h e l o c a l c h a p t e r o f t h e S o c i e t y o f N a v a l A r c h i t e c t s a n d M a r i n e E n g i n e e r s (SNAME), a n d t h a t i n v o l v e m e n t has b e e n c o n t i n u e d w i t h a l l o f t h e s u c c e e d i n g S y m p o s i a . The f i r s t s e v e n S y m p o s i a w e r e h e l d i n t h e Los A n g e l e s -San D i e g o a r e a ; s i n c e t h a t t i m e t h e a r e a o f p a r t i c i p a t i o n h a s b e e n e x p a n d e d t o i n c l u d e t h e m a j o r y a c h t i n g c e n t e r s a l o n g t h e W e s t C o a s t , f r o m San D i e g o , C a l i f o r n i a t o S e a t t l e , W a s h i n g t o n . T h i s y e a r t h e A n c i e n t I n t e r f a c e i s b e i n g h e l d i n t h e San F r a n c i s c o Bay A r e a , w h e r e A n c i e n t I n t e r f a c e V I I I was h e l d i n 1977. The n e x t Symposium, A n c i e n t I n t e r f a c e X I I I , w i l l r e t u r n t h i s a c t i v i t y t o San D i e g o . The A n c i e n t I n t e r f a c e S y m p o s i u m i s a d m i n i s t e r e d by a n A I A A S t e e r i n g C o m m i t t e e , r e s p o n s i b l e f o r b o t h i t s o v e r a l l d i r e c t i o n a n d c o n t i n u i t y . The C o m m i t t e e i s p r e s e n t l y composed o f t h e f o l l o w i n g : C h a i r m a n : A n t h o n y R. G r o s s , AIAA-San F r a n c i s c o S e c t i o n E a c h has h a d a h a n d i n t h e d e v e l o p m e n t and g u i d a n c e o f t h i s s e r i e s o f S y m p o s i a and t h r o u g h t h e i r e f f o r t s t h e t e c h n i c a l and s a i l i n g c o m m u n i t i e s h a v e b e e n w e l l s e r v e d .

The o r g a n i z a t i o n a n d management o f an A n c i e n t I n t e r f a c e Sym-p o s i u m i s a l o n g and c o m Sym-p l e x t a s k , a n d one t h a t s o m e t i m e s c o n t a i n s m o r e t h a n i t s s h a r e o f f r u s t r a t i o n s . On b e h a l f o f t h e S t e e r i n g C o m m i t t e e I w o u l d l i k e t o t h a n k t h i s y e a r ' s Symposium C h a i r m e n , L e w i s L. P e a c h , J r . f o r t h e A I A A a n d A l a n J . A d l e r f o r SNAME, as w e l l as C.A. M a r c h a j , C h a i r m a n o f t h e P a p e r C o m m i t t e e and G o r d o n F i r e s t e i n , P r o c e e d i n g s E d i t o r f o r an e x c e l l e n t j o b o f o r g a n i z a t i o n a n d p e r s e v e r a n c e t h a t has r e s u l t e d i n t h e p a p e r s a n d p r e s e n t a t i o n s o f A n c i e n t I n t e r f a c e X I I . I t was a j o b w e l l d o n e . L e w i s L. P e a c h , J r . , A I A A - S a n F r a n c i s c o S e c t i o n , T r e a s u r e r A l a n J . A d l e r , S N A M E - N o r t h e r n C a l i f o r n i a C h a p t e r Ann D u n l e a v y , A I A A - V e n t u r a P a c i f i c S e c t i o n W i l l i a m G. R o e s a l e r , A I A A - P a c i f i c N o r t h w e s t S e c t i o n A n d r e w G. H a m m i t t , A I A A - L o s A n g e l e s S e c t i o n

Faculty WbMT

Dept. of Marine Techno'cgy Mekelweg 2, 2623 CD Deift

The Netherlftncis

A n t h o n y R. G r o s s A I A A C o o r d i n a t o r f o r

PREFACE I n some w a y s . A n c i e n t I n t e r f a c e X I I c a r r i e s on t h e t r a d i t i o n s e s t a b l i s h e d by i t s predecessors» As b e f o r e , A n c i e n t I n t e r f a c e X I I p r o v i d e s a f o r u m f o r t h e e x c h a n g e o f k n o w l e d g e and i d e a s a b o u t u s i n g t h e w i n d t o p r o p e l b o a t s and s h i p s t h r o u g h t h e w a t e r . A l s o , t h i s y e a r ' s s y m p o s i u m m a i n t a i n s t h e A n c i e n t I n t e r f a c e p a t t e r n o f c h o o s i n g a West C o a s t l o c a t i o n a t t h e c e n t e r o f r e g i o n a l s a i l i n g a c t i v i t y . The S t . F r a n c i s Y a c h t C l u b , o v e r l o o k i n g t h e San F r a n c i s c o Bay, p r o v i d e s an e l e g a n t and a p p r o p r i a t e s e t t i n g f o r t h i s y e a r ' s c o n f e r e n c e . I n o t h e r w a y s , h o w e v e r . A n c i e n t I n t e r f a c e X I I b r e a k s t h e m o l d d e v e l o p ( o v e r t h e p r e c e d i n g y e a r s . T h i s y e a r we t o o k t h e u n p r e c e d e n t e d s t e p o: e x p a n d i n g t h e A n c i e n t I n t e r f a c e Symposium t o two d a y s . We w e r e d e l i g h t e d by t h e e n t h u s i a s t i c r e s p o n s e t o o u r c a l l f o r p a p e r s . D e s p i t e o u r a t t e m p t s t o accommodate a l l o f t h e f i n e a b s t r a c t s t h a t w e r e s u b m i t t e d , we w e r e r e g r e t t a b l y f o r c e d t o r e j e c t some v e r y good p a p e r s f o r no r e a s o n o t h e r t h a n l i m i t a t i o n s on t i m e a v a i l a b l e f o r t h e c o n f e r e n c e . We h o p e y o u w i l l a g r e e t h a t t h i s v o l u m e o f t h e p r o c e e d i n g s c o n t a i n s an e n o r m o u s amount o f u s e f u l , t h o u g h t - p r o v o k i n g i n f o r m a t i o n . I t i s t h e r e c o r d o f a u n i q u e e v e n t , and r e p r e s e n t s t h e c u l m i n a t i o n o f i n t e n s e e f f o r t s by t h e s e h i g h l y c o m p e t e n t a u t h o r s t o s h a r e t h e i r i n s i g h t s a b o u t s a i l i n g w i t h y o u . T h i s y e a r ' s c o n f e r e n c e has a l s o a c q u i r e d a d i s t i n c t l y i n t e r n a t i o n a l f l a v o r . The a u t h o r s ( a n d e v e n some members o f t h e a u d i e n c e ) a r e t r a n s f o r m i n g t h e A n c i e n t I n t e r f a c e f r o m i t s West C o a s t o r i g i n s i n t o a b o n a f i d e i n t e r n a t i o n a l s y m p o s i u m . P e r h a p s t h i s i s b e s t s y m b o l i z e d by t h e B r i t i s h a d d r e s s o f t h e c h a i r m a n o f t h e p a p e r s c o m m i t t e e . The a u t h o r s and t h e a u d i e n c e r e p r e s e n t a t l e a s t s e v e n c o u n t r i e s , s p a n n i n g N o r t h A m e r i c a , E u r o p e and A s i a . We a r e g r a t e f u l t o a l l t h e p a r t i c i p a n t s who h a v e t r a v e l e d s u c h g r e a t d i s t a n c e s , a t t h e i r own e x p e n s e , t o s h a r e t h e i r k n o w l e d g e o f w i n d p r o p u l s i o n . The A n c i e n t I n t e r f a c e X I I Symposium C o m m i t t e e L e w i s L. P e a c h , J r . C h a i r m a n f o r AIAA C. A. M a r c h a j C h a i r m a n o f t h e P a p e r s Committ A l a n A d l e r C h a i r m a n f o r SNAME G o r d o n F i r e s t e i n P r o c e e d i n g s E d i t o r S p o n s o r s S t a n f o r d U n i v e r s i t y , D e p a r t m e n t o f A e r o n a u t i c s and A s t r o n a u t i c s U n i v e r s i t y o f C a l i f o r n i a ( B e r k e l e y ) , D e p a r t m e n t o f N a v a l A r c h i t e c t u r e and O f f s h o r e E n g i n e e r i n g The San F r a n c i s c o Bay Y a c h t R a c i n g A s s o c i a t i o n The O c e a n i c S o c i e t y , San F r a n c i s c o Bay C h a p t e r

ACKNOWLEDGEMENT The A n c i e n t I n t e r f a c e X I I Symposium C o m m i t t e e w o u l d l i k e t o g r a t e f u l l y a c k n o w l e d g e t h e s u p p o r t o f t h e f o l l o w i n g s p o n s o r s C a p i t a l W o r k s h o p , M a r i n e D i v i s i o n San Francisco H o r i z o n S a i l s Oakland N i c r o F i c o San Leandro O r c o n C o r p o r a t i o n Union C i t y S a i l b o a t & S a i l i n g J o u r n a l San Jose

TABLE OF CONTENTS T e s t s on S a i l b o a t P l a n i n g H u l l Models by A l l a n J . A r n o l d D e s i g n s f o r H y d r o f o i l S a i l i n g by W. S. B r a d f i e i d New C e l e s t i a l N a v i g a t i o n A i d s f o r t h e Yachtsman by G. H. F r e y e r m u t h M a r i n e A p p l i c a t i o n o f Aerospace T e c h n o l o g y : An A u t o m a t i c I n t e g r a t e d D i s p l a y System by C. T. J a c k s o n , J r . , T. R. J o h n s o n , P. J . Maloney, K. M i l l a r and Z. A. K e r s t e e n An I n t r o d u c t i o n t o Advanced Composite T e c h n o l o g y f o r t h e Yachtsman by S. H. Myhre S a i l i n g Yacht S t r u c t u r e s

by C h r i s t o p h e r B a r r y , S i d a r t h a S i r c a r and Ryan Young S a i l Boag R i g g i n g by R o d e r i c k Stephens J r . The L i n e a r W i n d / W a t e r - M i l l / P r o p e l l e r by Hugh M. B a r k l a O p t i m a l Blade D e s i g n f o r W i n d m i l l B o a t s and V e h i c l e s by B. L. B l a c k f o r d A p p l i c a t i o n o f C u r r e n t Computer-Aided D e s i g n and M a n u f a c t u r i n g T e c h n i q u e s t o t h e D e s i g n and C o n s t r u c t i o n o f S a i l i n g C r a f t by Paul F. Weiss D e s i g n i n g and B u i l d i n g t h e HP SS D i n g h y by P e t e r V. H. S e r r e l l SNAME/tlSYRU S a f e t y f r o m C a p s i z e S t u d y - A P r o g r e s s R e p o r t by K a r l L. K i r k m a n and Joseph 0. S a l s i c h

M u l t i h u l l Dynamics i n Wind and Waves by H. A. Myers and U. S. K r u s h k o v Yacht S u r v i v a l Dynamics i n Heavy Seas

by C. A n t h o n y M a r c h a j Advances i n L i f t i n g Membrane A n a l y s i s by C. J . S a t c h w e l l Modern S a i l c l o t h by Jeremy H o w a r d - W i l l i a m s A e r o d y n a m i c s o f S a i l - A s s i s t e d P r o p u l s i o n o f Commercial S h i p s : A P r e l i m i n a r y S t u d y by J.-L. Armand, P. M a r o l and G. S a i n t - B l a n c a t S a i l - E q u i p p e d M o t o r S h i p " S h i n A i t o k u M a r u " and S t u d i e s on L a r g e r S h i p

by T. Watanabe, Y. Endo, K. N a k a n i s h i and K. Takeda

Page 1 12 53 43 54 63 76 88 103 116 129 139 152 164 206 224 230 238