To rig an anchor for breakaway.. we do the following.. However I dont anchor in areas w/ huge tidal currents, nor do I know the bottom types, but it is worth a shot..
for a danforth anchor
Drill (Or have a machinist do it) a 3/8" hole in the heel of the anchor.. Then put your shackle for the chain through this hole... Run the chain along the shank of the anchor and tie off with heavy duty wire ties.. This way you can break the ties with the boats power and pull the anchor out backwards...
OR
If very rocky or a wreck.. Get a bunch of rebar and weld up a grapnel anchor.. The rebar can br straigthened w/ the boat's power if needed and then bent back on land... Any questions, PM me...
Bryan
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