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Harold,
I would recommend that you change your anchor type.  In choosing an anchor
to hook wrecks you want a type that does not easily hook in your bottom
substrate,  a plow anchor will dig into most bottoms.  The best combination
we've found is a 10-15# navy anchor with 10' of chain.  You can usually
feel through the line the type ofanchor (hold) you have and it helps you
tell if your in the wreck.  We normaly monitor our position for awhile to
determine if were drifting after hooking the wreck.

Some general pointers on hooking wrecks:
1.  After locating the wreck, oreint your boat into the wind or current
(which ever is stronger).
2.  While maintaing your orientation into the wind, pass over the wreck.
As soon as you are past the wreck drop your anchor to the bottom and let
the wind or current push you back over the wreck.  Do not let out a lot of
excess scope.  The more scope you have the greater the probability of
setting your anchor in the bottom substrate.  You want the anchor to just
be on the bottom.
3.  After hooking the wreck pull in as much scope as feasabile and
determine how solid your hook is.

A major concern during the dive is that your hook remain in the wreck.  An
easy method of insurance is to have a 6' length of line with a carabiner on
each end.  Connect one carabiner to the anchor line, wrap the 6'line around
a solid piece of the wreck and clip he carabine back on the line.  At the
end of the dive unclip the one carabiner and lock it shut.  The line and
biners' will come up with your acnchor (this saves time and the hassle of
unattaching the whole system at the end of the dive).
Curt

Curt W. Smitka                          Phone:  (313) 747-0252
Administrative Manager                  Fax:    (313) 936-8620
Reproductive Sciences Program           Email:  cwsmitka@um*.ed*
University of Michigan
1109 300 North Ingalls Bldg
Ann Arbor, MI 48109-0404

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