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Rod, I'm copying my response to you to Techdiver
so that the others will see it too. I sent the videos to
you, David Doolette, and two others in "Oz" , as you call
it, as well as one in New Zealand. Why don't you all just
copy them for the rest to save the freight. The same goes
for the other countries as well. I've almost been able to
retrieve the cost of production, so don't worry about
distributing copies - we just want everyone to see them.
As you may now know,these films were shot by Bob and Robbie
McGuiire, and Barry Miller. Robbie was killed Saturday, so
there may not be much enthusiasm for finishing the films
he had underway - in other words, that's it for a while from
us. The govenment want the conduits explored, now that they are
clearing, and these are unfilmable anyway.
On the wreck question, because of "current shear" (top
current different than bottom), and because of the problem you
mentioned (too long to pull on a rope), we calculate the drop
and get that far up current (about six minutes worth of current
for 450) and just free drop in with no line (the buoy would get
caught in the shear). To come up we pop a lift bag from about
100 feet (we use a "Bill Main" spool so that is won't hang up,
and we have several ). If the shear is bad enough to be confusing
to the boat operator, one guy aborts and surfaces to tell the boat
how to find the divers (this is usually me since I weenie if it's
cold). We use no scooters, a small version of the cave light,
double aluminum 80's, and three forty cubic foot aluminum deco
bottles. We generally use 10-12 O2 and 55-65 helium, but we have
to drop immediately and then start breathing the tanks, and not
breath them right at the surface. When the boat relocates us,
they send down the divemaster to check to see if we need more
deco gas, which he then brings down. We lost a bottle once, and
I had to share one gas with a buddy, but we never knew if that
would work since the sharks chased us out before we could finish.
- George Irvine
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