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To: techdiver@terra.net
Cc: wahoo-diving@ju*.co*, garlooent@ao*.co*
Subject: wreck anchoring
From: wahoo-capt.janet@ju*.co* (Captain Janet C Bieser)
Date: Wed, 06 Nov 1996 04:09:58 EST
You might try bridle anchoring. two anchors  at 45 to 75 degrees apart up
current of the wreck. 

       ^                              ^
         \                           /
           \                       /
             \                  /
                \             /
                  \         /
                    \     /                W is the wreck
                      \ /
                       x                  x is where the boat is floating
at the end of two anchor lines

                       W                  you can adjust the distance
left or right or forward and aft
                                              by letting out or  pulling
in  on one or both lines.
                                                you can    drop a third
weighted 
                                      line from the stern of the boat 
witch should be somewhat up                                              
tide depending on how far back it will drift while its lowered.
                                              this is how party fishing
boats anchor to fish wrecks or reefs                                     
        when they do not want to get their anchor stuck in wreckage
                                             you set one anchor at a time
then feed out and retrieve slack                                         
  as you set the other . a marker bouy helps as a reference              
                          point.  If you are anchoring near coral reefs
or sharp wreckage                                                   have
to be careful not to chafe the line or damage the reef.                  
                          On a large boat you need a winch to retrieve
the line . the party                                              fishing
boats up hear  North Atlantic all  have winches if they                  
                         wreck fish in the ocean. they have from 1200 to
2400 feet of                                            anchor rhode for
each anchor. and use 65 to 120 lb danforth                               
              type anchors with 15 feet or so of chain , but we have no  
                                                     coral reefs( you may
need more chain)                                                         
                                      on smaller boats and in shallower
water lighter                                           anchors and less
line is needed. it takes some practice to                                
             manage the two lines , there is a tendency to get the first 
                                           anchor line caught in the
propeller while maneuvering to set                                       
     the second anchor.   A third and final line can be set and secured
to the wreck as a down line.  I some times do this when carrying a diving
charter, if for some reason i can not anchor directly to the wreck. or
want to anchor with a longer scope with out having  the divers make a
long swim to the wreck.   

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