<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1505262695843_7184"><span>Brian,</span></div><div id="yui_3_16_0_ym19_1_1505262695843_7184"><span><br></span></div><div id="yui_3_16_0_ym19_1_1505262695843_7184"><span id="yui_3_16_0_ym19_1_1505262695843_7247">Corrosion triggered weight release was one of the safety features incorporated into James Cameron's sub Deep Sea Challenger.</span></div><div id="yui_3_16_0_ym19_1_1505262695843_7184"><span><br></span></div><div id="yui_3_16_0_ym19_1_1505262695843_7184"><span>Greg</span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1505262695843_7185"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1505262695843_7294" style="display: block;"> <div style="font-family: verdana, helvetica, sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1505262695843_7293"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1505262695843_7292"> <div dir="ltr" id="yui_3_16_0_ym19_1_1505262695843_7291"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> PSubs <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, September 12, 2017 8:10 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] Drop weight<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1505262695843_7295"><br><div id="yiv8122760622"><div style="font-family:Arial, sans-serif;font-size:10pt;" id="yui_3_16_0_ym19_1_1505262695843_7297"><div id="yui_3_16_0_ym19_1_1505262695843_7296">Hi All,</div><div id="yui_3_16_0_ym19_1_1505262695843_7298"> I had an idea for an emergency drop weight, and it would also work for a depth testing function. Basically it would be a corrosion triggered release. Every time you go on a planned dive you insert a anode type material ( a bi-metal corrosion bolt) which would be scheduled to corrode out in what ever time frame you want. So in addition to your regular drop weight you would also have this back up device designed to disintegrate at a calculated time. I know it would work in salt water , for fresh water you may have to use some kind of different materials. I have a friend who's father use to do some studies for Scripps and the devised some fish traps that would float to the surface after a certain time period.</div><div id="yui_3_16_0_ym19_1_1505262695843_7299"> </div><div id="yui_3_16_0_ym19_1_1505262695843_7300">Brian</div></div>
</div>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" id="yui_3_16_0_ym19_1_1505262695843_7301">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" id="yui_3_16_0_ym19_1_1505262695843_7302">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></div></body></html>