4. Tandem Anchors (Refer to Taylor, 1980a) 



Option A - Shank to shackle technique; good tandem capacity; chain 

 should be lightly lashed to inbound anchor crown during 

 deployment. 



Option B - Crown to shackle technique; slightly less efficient than 

 "A" but easier to install. 



Option C - Ground ring to shackle technique; less efficient than "A" 

 or "B" - relatively easy to install in shallow water; 

 Anchor B installed first. 



RIGGING METHOD FOR TANDEM ANCHORS Km ADEQUATE PERFORMANCE. 



5. Options to Improve Poor Anchor Performance 



Problem 



Possible Reason 



Solution 



Poor mud performance 



Flukes not tripping 



Anchor unstable 



Unknown 



- Increase size of 

 tripping palms 



- Weld flukes in 

 open position 



- Increase stabilizer 

 length/add 

 stabilizers 



- Add chain 



- Use backup anchor 



Poor sand performance 



Flukes not penetrating 



- Anchor unstable 



- Check fluke angle; 

 reduce if > 30-32** 



- Sharpen flukes 



- Extend stabilizers 



- Add stabilizers 



- Unknown 



Add chain 



Use backup anchor 



23 



