Unclassified 



Scciintv Classificalion 



DOCUMENT CONTROL DATA -R&D 



ol mlc. body of f 



Naval Civil Engineering Laboratory 

 Port Hueneme, California 93043 



Unclassified 



Propellant-Actuated Deep Water Anchor: Interim Report 



Not final; January 1971 - October 1972 



< Initial, laat name) 



R. J. Taylor and R. M. Beard 



August 19 73 



41 



PROJECT NO. 3.1330-1 



TN-1282 



NO(S) (Any other numbtta that 



Approved for public release; distribution unlimited, 



Naval Facilities Engineering 

 Command 



A propellant-actuated deep water anchor is being developed to 

 moor deep ocean surface and sub-surface structures. The anchor is 

 designed to have a long-term holding capacity of 20,000 pounds and 

 function in seafloors ranging from very soft sediments to hard rock 

 (basalt) in water depths to 20,000 feet. The anchor has been de- 

 signed, fabricated, and tested on land. Deep water use of this 

 anchor requires that it be expendable; therefore, surplus ammunition 

 components are used in the launching system (e.g., gun barrel, 

 cartridge, primer), and a simplified structural shape is used for 

 the reaction vessel. 



Three anchor flukes (one for rock and coral, one for sand and 

 stiff clay, and one for soft clay) were designed to satisfy the 

 realm of seafloor anchoring possibilities. Results of the land 

 tests were that actual and predicted launching system performance 

 were comparable within 9%, and the anchor launch vehicle was 

 structurally sound. The anchor will be tested in a range of water 

 depths and seafloor types to complete the development phase. 



DD 



„1473 



Unclassified 



S/N 0101-907.6801 



