CONTENTS 
IMerenonGl 6 G'n'6 do ag oo cldo os Go alist tmaeatietentc helmet eiterielior ciel ataliste teltere tere, relteMel oie eh sits: let's iii 
ore tics Cel aciteatentented tate tartel fe: tefe:ite} a) fal Ye: fore) follelse: "fe aiic teitelientelt site iettey is) retie! Lal alttaytencet crate peo Olnbin rose. omonc Vv 
Dedication to Sir Thomas Havelock .......... DE Site) emokeltellsttel stvsie sie lol shee nse bedtaltslue vii 
Theodore von Karman 
Adaressot WELCOME: selec sole ¢ «cc ce ele eielele «iste se elete Seamer iicharletind ath GuoaCh Cinco xili 
L. Troost 
Wddiress of Wellcome s% «<< 0. 6 «6 ss cs 6 © sil Mie tem cl nenaleemecterts ta Sromohdibhcncubvckaonce> xvii 
T. J. Killian 
HIGH PERFORMANCE SHIPS — PROMISES AND PROBLEMS .......+-+2eeeeees 1 
Owen H. Oakley 
SUA. YAP ANNI ASIST ID) OlD SISMUSTSy IN) AMEN OP MORU IS Soa Goo ono ooo Oe ae Zo 
J. D. van Manen 
ON THE EFFICIENCY OF A VERTICAL-AXIS PROPELLER...... sipsige) elle Wokese) loike fiayse 45 
J. A. Sparenberg 
A SOLUTION OF THE MINIMUM WAVE RESISTANCE PROBLEM ...........26..-. 67 
R. Timman and G. Vossers 
ON THE PROBLEM OF MINIMUM WAVE RESISTANCE FOR 
STRUTS AND STRUT-LIKE DIPOLE DISTRIBUTIONS .........2-..-22+eeeees 75 
Samuel Karp, Jack Kotik, and Jerome Lurye 
THE HYDRODYNAMICS OF HIGH-SPEED HYDROFOIL CRAFT........... Nweliette 121 
Marshall P. Tulin 
ON HYDROFOILS RUNNING NEAR A FREE SURFACE ......-+-ceeeeeeseevsees 147 
S. Schuster and H. Schwanecke 
THE EFFECT OF SIZE ON THE SEAWORTHINESS OF 
IBIVAD ISOM OME (ORY NDALES 15 ol d Goo ooo 3 Oo Goo. coool a 6 Oo So SHabemerteilcl aio teMet at oie 191 
A. Hadjidakis 
DESIGN AND INITIAL TEST OF ONR SUPERCAVITATING 
HYDROFOIL BOAT XCH-6...... SO 5553 DOO UO OO Go oS exis feremalfonsnetiste = ord ofc 205 
Glen J. Wennagel 
DESIGN AND OPERATING PROBLEMS OF 
COMMERCIAL HYDROFOILS .......... Hee aewehallseictcu nts catesl siistensMoniscisaene ueixkeas 233 
H. Von Schertel 
GROUND EFFECT MACHINE RESEARCH AND DEVELOPMENT 
LIN ANSS; WINIMhIDD) SWWNMISS Sig og aeadoo0o uo od ano O 6 3 Suu Ghobes 3 Ouse Cro Casicen Ba 
Harvey R. Chaplin 
HYDRODYNAMIC ASPECTS OF A DEEP-DIVING 
OCEANOGRAPHIC SUBMARINE ........ Ruleriaieioteh slic as iaifezia leietienis wioteleateLetcipeceite 307 
P. Mandel 
SUBMARINE CARGO SHIPS AND TANKERS ........2.2.2.2-. aboneMUiacticlicikerelteite Loumisear eis 341 
F.H. Todd 
xi 
