CONTENTS 



page 



INTRODUCTION 1 



Background 1 



Requirements 1 



Modified Anchor Criteria 2 



ANCHOR SYSTEMS REVIEW 8 



The "Free-fall" Anchor 8 



Design Considerations 8 



Description and Results 



12 

 Explosive Embedment Anchors 



12 

 History 



T. . . 12 



Description 



Tests and Results 



Pulse- jet Anchor Concept 21 



Background 21 



21 

 Description 



Results and Conclusions of Investigation .... 24 



The Padlock Anchor 24 



Background 24 



Description 24 



Tests and Results 27 



MBL/WHOI 



D3D1 D04Dlb4 E 



