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Hello all We have a guy that works with us came and told us very excited
about this new thing he wanted to build it would be able to go under water and
was run by a wire it would fly and have cameras and be able to go to great
depths for long periods of time, we all look at him and said it sounds like and
ROV, he said yes but different. I have to agree with Dave it is much harder
than it looks, the moral of my first story is that there has been years of thought
and motivation put into ROV’s and AUV and they still fail 50% of the time
and the upkeep is astronomical, I just had to replace a thruster on our vector
M5 ROV at a cost of 6000.00 which is crazy money for what it is and there is
about 4 hours of pre flight before we get into the water, I am retrofitting the
M5 to carry a hydrophone and pre amp and use the umbilical on the ROV to carry
the signal back to the control room where I can grab the signal it should
increase Dave’s HBH to aprox 3500 feet just because that’s what the
ROV is good for , what about a deployable antenna similar to the ones they use
on nuclear subs now, a slip ring and a float containing a small ½ wave vhf antenna
with a very small dc motor to retract and deploy the antenna, seems pretty simple
to build and should work pretty good, BTW the guy still works for us and for
all the crazy ideas he comes up with he comes up with good one too. As the old
saying goes I have never failed at anything I have just found 10 thousand ways
that did not work Brian V. Ryder CONFIDENTIALITY NOTICE: This e-mail message, including any
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destroy all copies of the original message. From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of David
Bartsch
I actually tried at one time to make a torpedo like device and found the small
electric motor was too weak although out of the water it looked fast enough.
Had I been successful at this, once in motion, the fish would have wanted
to spin over from torque (counter rotating screws would have been needed) It
would have cost many dollars on something I would never use. |