> Didn't think of that. Would be nice to drop it on a sandy bottom and
> hover 20 feet up beside a reef, sit back and have lunch.
And hey, I didn't think of *that* -- you could use it for everyday, not
just special occasions (emergencies). Anchor-/slash/-drop weight. And
for a submarine, an anchor to be really handy ought to work in 3
dimensions, as opposed to the 2 we expect for surface boats. ("He is
intelligent, but his pattern suggests... 2-dimensional thinking.")