Table 3. Continued. 



Operation 



Test 

 No. 



Site 



Date of 

 Installation 



Geographic 

 Location 



Water 

 Depth 

 (ft) 



Subbottom 

 Composition 



Fluke 

 Type 



(ft) 



Charge 



Weight 



(lb) 



Actual/Predicted 

 Gun Barrel 



Pressure (ksi) 



Penetration 

 Depth (ft) 



Projectile 

 Velocity 

 (ft/sec) 



Holding 

 Capacity (kips) 



Comments 



Type of Soil 



% 



Before 

 Keying 



After 

 Keying 



PuUout 



No 

 Pullout 



VI 



20 



Atlantic Ocean. 

 Cheatham Annex. 

 Virginia 



20 Jul 1974 



37''22'54"N 

 73''32-23"W 



8,000 



Soft clay 





1-1/2 X 3 

 (sand) 



3.20 





no fire 









1. System did not fire; magnetic switch was faulty. 



21 



Atlantic Ocean. 

 Cheatham Annex, 

 Virginia 



22 Jul 1974 



37°2I.7'N 

 73°32,8'W 



8.000 



Soft clay 





1-1/2 X 3 

 (sand) 



3.20 



-/30.50 



norm 



easured 



366 



13 





1. Test location (water depth 8,000 ft instead of 6.000 ft) was 

 changed, resulting in slightly reduced charge (3.3 lb is max). 



2. Larger fluke should have been used, but seafloor data were 

 unavailable to aid in fluke selection. 



22 



Atlantic Ocean. 

 Cheatham Annex. 

 Virginia 



23 Jul 1974 



37°21.6'N 

 73°34.2-W 



8,000 



Soft clay 





2x4 

 (clay) 



3.10 



-/32.0 





easured 



336 



8 





1. Downhaul cable was too short, and it was damaged when 

 penetration exceeded expectation. Cable connections were 

 damaged, resulting in premature connection failure. 



2. Downhaul cable was lengthened for tests in soft clay sub- 

 sequent to this operation. 



23 



Atlantic Ocean. 

 Cheatham Annex, 

 Virginia 



23 Jul 1974 



35<'44.7-N 

 73''11.8'W 



12.200 



Stiff clay 





1-1/2x3 

 (sand) 



3.20 



-/40.00 



not measured 



365 



40 





1. No damage to equipment. 



VII 



24 



SEACON II, 

 Santa Barbara 

 Basin 



5 Aug 1974 



33°44'45"N 

 119°03'20"W 



2.630 



Sand 



Silt 



Clay 



50 

 32 

 18 



1-1/2x3 

 (sand) 



3.60 



-/35.00 



notm 



easured 



390 





25 



1. Anchor tested to 25 kips without pullout. 



25 



SEACON II, 

 Santa Barbara 

 Basin 



5 Aug 1974 



33°44'45"N 

 119°03'20"W 



2,710 



Sand 



Silt 



Clay 



SO 



32 

 18 



1-1/2x3 

 (sand) 



3.25 



-/27.00 



30« 



25 



350 





15 



1. Reduced charge used (3.6 lb is max); load requirements 

 of anchors did not require peak charges. 



2. Anchors tested to 15 kips without pullout; anchors in 

 service mooring a cabled structure. 



26 



SEACON II, 

 Santa Barbara 

 Basin 



5 Aug 1974 



33''44'45"N 

 119°0370"W 



2.700 



Sand 

 Silt 

 Clay 



50 

 32 

 18 



1-1/2 X 3 

 (sand) 



3,25 



-/27,00 



30' 



25 



350 





15 



1. Reduced charge used (3.6 lb is max); load requirements 

 of anchors did not require peak charges. 



2. Anchors tested to 15 kips without pullout; anchors in 

 service mooring a cabled structure. 



VIII 



27 



Hawaii 



23 Sep 1974 



20°35'N 

 I56''25W 



18.700 



Silty sand 





1-1/2 X 3 

 (sand) 



2.75 



-/25.00 





easured 



340 



17-24 





1. Reduced charge used (2.95 lb is max); a weak link was placed 

 in the downhaul cable to avoid lowering line damage; a larger 

 charge was unnecessary. 



2. Difficulty was experienced with load measurement due to ship's 

 positioning problems; it was difficult to keep the line straight 

 over the load measuring sheave assembly. 



3. No damage to equipment. 



