Message text written by Randall Young
>I used to work for a company that placed mini-computer systems onboard
seismic survey ships. The seismic surveys they do involve essentially
setting off an explosion under the stern of the ship every 10 seconds or
so, for days on end. The explosions used to actually be dynamite
charges, but when I worked them, they used 3000 psi compressed air and
special 'guns' that would release several cubic feet in an instant.
(ISTR the Shell America had a 750hp compressor !) The stern of the ship
would visibly jump, and the water turn white in a big circle.
Definitely a high vibration, high corrosion environment !
<
Some people call this fishing! ;-)
Dave
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