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<div><font face="Arial, Helvetica, sans-serif" size="3" style="background-color: transparent;">I did some checking to see what Wikipedia didn't tell. Apparently Pisces III was on the surface about to be retrieved after a dive when the hatch was pulled off the rear sphere (accidentally?) and it flooded with about a ton of water. The rear sphere housed machinery. It only took 30 seconds for it to crash about 1575 feet to the sea floor, but fortunately neither Roger was significantly injured. They jettisoned the 400 lb. drop weight on the way down. Mallinson had changed out a half-full oxygen bottle for a full one before the dive or they would not have made it. Here's a link for <font face="Arial, Helvetica, sans-serif">more</font> detail: <a href="http://www.bbc.co.uk/news/magazine-23862359">http://www.bbc.co.uk/news/magazine-23862359</a></font></div>
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<div><font size="3">Jim</font></div>
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<div style="color: black; font-family: arial,helvetica; font-size: 10pt;">-----Original Message-----<br>
From: jimtoddpsub <jimtoddpsub@aol.com><br>
To: personal_submersibles <personal_submersibles@psubs.org><br>
Sent: Tue, Jan 28, 2014 10:28 pm<br>
Subject: Re: [PSUBS-MAILIST] Pisces III rescue<br>
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<div><font face="Arial, Helvetica, sans-serif" size="3" style="background-color: transparent;">Joe,</font></div>
<div><font size="3">Same company originally: Vickers, Sons and Maxim, Ltd.</font></div>
<div><font size="3">Jim</font></div>
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<div style="color: black; font-family: arial,helvetica; font-size: 10pt;">-----Original Message-----<br>
From: Joe Perkel <<a href="mailto:josephperkel@yahoo.com">josephperkel@yahoo.com</a>><br>
To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
Sent: Tue, Jan 28, 2014 10:10 pm<br>
Subject: Re: [PSUBS-MAILIST] Pisces III rescue<br>
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<div>Jim,</div>
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<div>I thought it was the aft sphere that flooded?</div>
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<div>Vance,</div>
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<div>Is / was Vickers the same company that manufactured the Vickers machine gun in WWI? <br>
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<div>Joe</div>
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On Jan 28, 2014, at 10:56 PM, <a href="mailto:jimtoddpsub@aol.com">jimtoddpsub@aol.com</a> wrote:<br>
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<div><font size="3" style="background-color: transparent;">Vance,</font></div>
<div><font size="3" style="background-color: transparent;">Pretty <font face="Arial, Helvetica, sans-serif">hairy</font> situation. Apparently they were 76 hours into their 72-hour life support capacity when the rescue was completed. Do you know how the tank was inadvertently flooded, why they couldn't blow the tank, or why they couldn't release a drop weight to ascend? Below is the story per Wikipedia:</font></div>
<div><span class="mw-headline" id="1973_Pisces_III_rescue"></span> </div>
<div><span class="mw-headline"><font size="4"><strong>1973 <i>Pisces</i> III rescue</strong></font></span></div>
<div><font size="3"><i>Pisces</i> III was used to lay </font><a title="Transatlantic telephone cable" class="mw-redirect" href="http://en.wikipedia.org/wiki/Transatlantic_telephone_cable" target="_blank"><font size="3">transatlantic telephone cable</font></a><font size="3"> on the sea bottom off Ireland in 1973. When a buoyancy tank was inadvertently flooded, it sank to the bottom of the ocean with its two-man crew, Britons </font><a title="Rescue of Roger Mallinson and Roger Chapman" href="http://en.wikipedia.org/wiki/Rescue_of_Roger_Mallinson_and_Roger_Chapman" target="_blank"><font size="3">Roger Mallinson and Roger Chapman</font></a><font size="3">, stranded at a depth of 1,575 feet (480 m) and 72 hours of available life support, which they were able to extend to 76 hours by careful conservation.<sup class="reference" id="cite_ref-Way_Out_2-0"><a href="http://en.wikipedia.org/wiki/Pisces-class_deep_submergence_vehicle#cite_note-Way_Out-2" target="_blank"><span>[</span>2<span>]</span></a></sup><sup class="reference" id="cite_ref-World_Book_3-0"><a href="http://en.wikipedia.org/wiki/Pisces-class_deep_submergence_vehicle#cite_note-World_Book-3" target="_blank"><span>[</span>3<span>]</span></a></sup><sup class="reference" id="cite_ref-Chapman_4-0"><a href="http://en.wikipedia.org/wiki/Pisces-class_deep_submergence_vehicle#cite_note-Chapman-4" target="_blank"><span>[</span>4<span>]</span></a></sup> Initial rescue efforts by <i>Pisces</i> III sister submersibles were unsuccessful. Through an international effort of the </font><a title="United States" href="http://en.wikipedia.org/wiki/United_States" target="_blank"><font size="3">United States</font></a><font size="3">, Canada, and </font><a title="Great Britain" href="http://en.wikipedia.org/wiki/Great_Britain" target="_blank"><font size="3">Great Britain</font></a><font size="3">, the U.S. Navy Cable-controlled Undersea Recovery Vehicle (</font><a title="CURV-III" href="http://en.wikipedia.org/wiki/CURV-III" target="_blank"><font size="3">CURV-III</font></a><font size="3">) was deployed within 24 hours 6,000 miles from its home base. Deployment of CURV-III from CCGS <i>John Cabot</i> was hampered by heavy sea conditions. Rapid repairs were made when CURV-III’s </font><a title="Gyroscope" href="http://en.wikipedia.org/wiki/Gyroscope" target="_blank"><font size="3">gyroscope</font></a><font size="3"> failed and electronics shorted-out after green water came aboard the <i>Cabot</i>. Assisted by the submersibles <i>Pisces</i> II and <i>Pisces</i> V, CURV-III was able to attach lines to the <i>Pisces</i> III hatch. The <i>Cabot</i> raised CURV-III at 60 to 100 feet (18 to 30 m) per minute until their lines entangled. The lines were cut, CURV-III was abandoned, and <i>Pisces</i> III was floated to 60 feet (18 m) where </font><a title="Scuba divers" class="mw-redirect" href="http://en.wikipedia.org/wiki/Scuba_divers" target="_blank"><font size="3">scuba divers</font></a><font size="3"> were able to attach lines that were used to lift <i>Pisces</i> III the rest of the way to the surface. CURV-III performed the deepest underwater rescue in history when <i>Pisces</i> III’s two-man crew was rescued after 76 hours with just 12 minutes<sup class="reference" id="cite_ref-5"><a href="http://en.wikipedia.org/wiki/Pisces-class_deep_submergence_vehicle#cite_note-5" target="_blank"><span>[</span>5<span>]</span></a></sup> of air remaining.<sup class="reference" id="cite_ref-Way_Out_2-1"><a href="http://en.wikipedia.org/wiki/Pisces-class_deep_submergence_vehicle#cite_note-Way_Out-2" target="_blank"><span></span></a></sup></font></div>
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