<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1447968374488_3154"><span>I've been doing a bit of homework on this.</span></div><div id="yui_3_16_0_1_1447968374488_3154"><span id="yui_3_16_0_1_1447968374488_3344">There doesn't seem to be any ballast tanks; just lift bags that can be</span></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><span id="yui_3_16_0_1_1447968374488_3345">operated internally & externally for emergencies. I have never seen</span></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><span id="yui_3_16_0_1_1447968374488_3348">anything more than the dome out of the water.</span></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><span id="yui_3_16_0_1_1447968374488_3347">It is based on quad copter operation. I will mention that I bought some</span></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><span id="yui_3_16_0_1_1447968374488_3446">quad copter gyro stabilization electronics years ago with view to doing</span></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><span>something similar.</span></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><span>Here is an entertaining Gizmag video on it.</span></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><br></div><div id="yui_3_16_0_1_1447968374488_3154" dir="ltr"><span id="yui_3_16_0_1_1447968374488_3542"><a href="https://www.youtube.com/watch?v=G7AIlmrRv4o" id="yui_3_16_0_1_1447968374488_3540">Review: Deepflight Dragon - submarine meets quadcopter</a><br></span></div><div style="width:450px; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif';margin-top:5px; margin-bottom: 5px; background-color: #ffffff;" contenteditable="false" id="enhancrCard_0" class="link-enhancr-attachment link-enhancr-element richcompose-card"><table class="link-enhancr-element" cellspacing="0" cellpadding="0" border="0" style="width:450px; height:170px; position: relative; display: block;" id="yui_3_16_0_1_1447968374488_3566"><tbody id="yui_3_16_0_1_1447968374488_3565"><tr class="link-enhancr-element"><td class="link-enhancr-element" colspan="8" style="height: 1px; background-color: #e5e5e5; font-size: 1px; border-collapse: collapse;"><div class="link-enhancr-element" style="height: 1px; background-color: #e5e5e5; font-size: 1px; line-height:0px;"> </div></td></tr><tr class="link-enhancr-element" id="yui_3_16_0_1_1447968374488_3564"><td rowspan="5" class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt;"> </div></td><td class="link-enhancr-element link-enhancr-image-wrap enhancr-image-crop" rowspan="5" style="vertical-align: middle; width: 168px; height: 168px; border-collapse: collapse; background-color: rgb(255, 255, 255);" id="yui_3_16_0_1_1447968374488_3579"><div class="link-enhancr-element" style="width: 168px;" align="center" id="yui_3_16_0_1_1447968374488_3578"><a href="https://www.youtube.com/watch?v=G7AIlmrRv4o" class="link-enhancr-card-urlWrapper link-enhancr-element" style="text-decoration: none !important;text-decoration:none; color: #000000 !important;" id="yui_3_16_0_1_1447968374488_3577"><img alt="image" src="https://s.yimg.com/vv//api/res/1.2/42r4oYdRa7kHcoDY1Asp7w--/YXBwaWQ9bWFpbDtmaT1maWxsO2g9MTY4O3c9MTY4/https://i.ytimg.com/vi/G7AIlmrRv4o/hqdefault.jpg.cf.jpg" class="link-enhancr-thumbnail-image link-enhancr-element yahoo-ignore-inline-image" width="168" height="168" style="display: block; margin: auto;" id="yui_3_16_0_1_1447968374488_3576" data-id="f83b0007-314d-3d18-dde0-a70ed90e45f9"></a></div></td><td rowspan="5" class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt;"> </div></td><td rowspan="5" class="link-enhancr-element" style="width: 14px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 14px; background-color: #ffffff; font-size: 14pt;"> </div></td><td colspan="2" class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 6pt;"> </div></td><td rowspan="5" class="link-enhancr-element" style="width: 20px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 20px; background-color: #ffffff; font-size: 20pt;"> </div></td><td class="link-enhancr-element" rowspan="5" width="1" style="width: 1px; background-color: #e5e5e5; font-size: 1pt; border-collapse: collapse;" id="yui_3_16_0_1_1447968374488_3563"><div class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt;"> </div></td></tr><tr><td class="link-enhancr-element" colspan="2" style="width: 100%; vertical-align: middle; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif';"><div class="link-enhancr-text-part link-enhancr-element" style="line-height:16.5px; background-color: #ffffff; height: 135px; width: 245px;"><div class="link-enhancr-element" style="word-wrap: break-word; word-break: break-all;"><span class="link-enhancr-element icon  icon-shrink link-enhancr-toggle"></span><span class="link-enhancr-element icon icon-close link-enhancr-delete"></span><a href="https://www.youtube.com/watch?v=G7AIlmrRv4o" class="link-enhancr-card-urlWrapper link-enhancr-element" style="text-decoration: none !important;text-decoration:none; color: #000000 !important; line-height: 100%; font-size: 18px; display: block;"><span class="link-enhancr-element link-enhancr-card-title" style="margin: 0; font-weight: normal;margin-bottom: 3px; font-size: 18px; line-height: 21px; max-height: 43px; color: #000000; overflow: hidden !important; display: inline-block;">Review: Deepflight Dragon - submarine meets quadcopter</span></a></div></div></td></tr><tr><td colspan="2" class="link-enhancr-element" style="height: 4px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="height: 4px; background-color: #ffffff; font-size: 4pt;"></div></td></tr><tr id="yui_3_16_0_1_1447968374488_3569"><td class="link-enhancr-element" style="vertical-align: middle; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif';"><div class="link-enhancr-element" style="font-size: 0pt;"><a href="https://www.youtube.com/watch?v=G7AIlmrRv4o" class="link-enhancr-card-url link-enhancr-element" style="color: black; text-decoration: none !important;text-decoration:none;cursor:pointer !important;" target="_blank"><span class="link-enhancr-element link-enhancr-view-on" style="display: inline-block; line-height: 11px; max-width: 145px; min-width: 85px; overflow: hidden; max-height: 13px; word-break: break-all;" id="yui_3_16_0_1_1447968374488_3559"><span class="link-enhancr-element link-enhancr-mobile-no-resize" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none;">View on <span style="font-weight: bold" class="link-enhancr-view-on-domain">www.youtube.com</span></span></span></a><span class="link-enhancr-video-width link-enhancr-element" title="480"></span><span class="link-enhancr-video-height link-enhancr-element" title="270"></span><span class="link-enhancr-video-src link-enhancr-element" title="https://www.youtube.com/embed/G7AIlmrRv4o?feature=oembed"></span></div></td><td class="link-enhancr-element" style="vertical-align: middle; width: 100px; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif';" id="yui_3_16_0_1_1447968374488_3568"><div class="link-enhancr-element link-enhancr-preview-wrapper" style="max-width: 100px; min-width: 80px; overflow: hidden; text-align: right; line-height: 11px; max-height: 13px; font-size: 0pt;" id="yui_3_16_0_1_1447968374488_3567"><span class="link-enhancr-element link-enhancr-preview-by link-enhancr-mobile-no-resize" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none;">Preview by Yahoo</span></div></td></tr><tr id="yui_3_16_0_1_1447968374488_3572"><td colspan="2" class="link-enhancr-element" style="height: 9px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;" id="yui_3_16_0_1_1447968374488_3571"><div class="link-enhancr-element" style="height: 9px; background-color: #ffffff; font-size: 9pt;" id="yui_3_16_0_1_1447968374488_3570"></div></td></tr><tr class="link-enhancr-element" id="yui_3_16_0_1_1447968374488_3575"><td class="link-enhancr-element" colspan="8" style="height: 1px; background-color: #e5e5e5; font-size: 1px; border-collapse: collapse;" id="yui_3_16_0_1_1447968374488_3574"><div class="link-enhancr-element" style="height: 1px; background-color: #e5e5e5; font-size: 1px; line-height:0px" id="yui_3_16_0_1_1447968374488_3573"> </div></td></tr></tbody></table></div><div id="yui_3_16_0_1_1447968374488_3154">Alan</div><br>  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1447968374488_3277"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1447968374488_3276"> <div dir="ltr" id="yui_3_16_0_1_1447968374488_3275"> <hr size="1" id="yui_3_16_0_1_1447968374488_3274"> <font size="2" face="Arial" id="yui_3_16_0_1_1447968374488_3278"> <b id="yui_3_16_0_1_1447968374488_3415"><span style="font-weight:bold;" id="yui_3_16_0_1_1447968374488_3414">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Friday, November 20, 2015 8:54 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Deep Flight Dragon<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1447968374488_3654"><br><div id="yiv1659748114"><div id="yui_3_16_0_1_1447968374488_3653"><div style="font-family:Arial, sans-serif;font-size:10pt;" id="yui_3_16_0_1_1447968374488_3652"><div><br clear="none">I'm pretty sure he would charge for that privilege</div><div> </div><div>Brian Cox</div><div id="yui_3_16_0_1_1447968374488_3655"> </div><div class="qtdSeparateBR"><br><br></div><div class="yiv1659748114yqt0697610991" id="yiv1659748114yqt49938"><div id="yui_3_16_0_1_1447968374488_3651"> <br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: T Novak via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: "'Personal Submersibles General Discussion'" <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] Deep Flight Dragon<br clear="none">Date: Wed, 18 Nov 2015 20:18:28 -0800<br clear="none"><br clear="none"></div><div><div><span style="color:rgb(31, 73, 125);">Alan,</span></div></div><div><span style="color:rgb(31, 73, 125);">Perhaps the next PSubs conference could be there.  Hmmm.  What do you think, Jim?</span></div></div></div><div class="yiv1659748114yqt0697610991" id="yiv1659748114yqt09355"><div><span style="color:rgb(31, 73, 125);">Bike hub motor… interesting.  It wouldn't be too difficult to make up an oil compensated magnetically coupled thruster.</span></div><div><span style="color:rgb(31, 73, 125);">I like the OrcaSub better.  More my style, and local of course.  </span></div><div><span style="color:rgb(31, 73, 125);">Tim</span></div><div><span style="color:rgb(31, 73, 125);"></span> </div><div><div style="border-width:1pt medium medium;border-style:solid none none;border-color:rgb(225, 225, 225) currentColor currentColor;padding:3pt 0cm 0cm;"></div></div><div><b><span lang="EN-US" style="">From:</span></b><span lang="EN-US" style=""> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Alan James via Personal_Submersibles<br clear="none"><b>Sent:</b> November-18-15 7:58 PM<br clear="none"><b>To:</b> Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none"><b>Subject:</b> Re: [PSUBS-MAILIST] Deep Flight Dragon</span></div><div> </div><div></div><div><div><div><div><div></div></div></div></div></div><div style="background:white;"><span style="color:black;">Hi Tim,</span></div><div></div><div style="background:white;"><span style="color:black;">yes it would be difficult to get in to that in anything other than a mill pond;</span></div><div></div><div style="background:white;"><span style="color:black;">& I wonder about the stability also; the way the bouyancy seems to be placed low down.</span></div><div></div><div style="background:white;"><span style="color:black;">From the videos I've seen it looks like the hatch can only be opened from the outside,</span></div><div></div><div style="background:white;"><span style="color:black;">could be wrong though.</span></div><div></div><div style="background:white;"><span style="color:black;">The large diameter thrusters look like they could be made from bike hub motors. They</span></div><div></div><div style="background:white;"><span style="color:black;">are the right voltage at 40V & are only 1500W. They are direct drive & getting their torque</span></div><div></div><div style="background:white;"><span style="color:black;">by using large diameter narrow motors.</span></div><div></div><div style="background:white;"><span style="color:black;">There are some good photos of the fuselage & hull in the links on this page.</span></div><div></div><div style="background:white;"><span style="color:black;">He is not scared to think outside the box.</span></div><div></div><div style="background:white;"><span style="color:black;">Love a visit to his workshop. Would fly over for that :)</span></div><div></div><div style="background:white;"><span style="color:black;"><a rel="nofollow" shape="rect" target="_blank" href="http://www.deepflight.com/category/news/"><span style="background:white;">http://www.deepflight.com/category/news/</span></a></span></div><div></div><div style="background:white;"><span style="color:black;">Cheers Alan</span></div><div style="background:white;"><span style="color:black;"></span> </div><div><div><div></div></div></div><div style="background:white;margin-bottom:12pt;"><span style="color:black;"></span> </div><div><div><div align="center" style="background:white;text-align:center;"><span style="color:black;"></span><hr align="center" width="100%" size="1"></div></div></div><div style="background:white;"><b><span style="color:black;">From:</span></b><span style="color:black;"> T Novak via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"><b>To:</b> 'Personal Submersibles General Discussion' <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br clear="none"><b>Sent:</b> Thursday, November 19, 2015 3:11 PM<br clear="none"><b>Subject:</b> Re: [PSUBS-MAILIST] Deep Flight Dragon</span><span style="color:black;"></span></div><div></div><div style="background:white;"><span style="color:black;"></span> </div><div><div><div><div></div></div></div></div><div style="background:white;"><span style="color:black;">Alan,</span><span style="color:black;"></span></div><div></div><div style="background:white;"><span style="color:black;">Hawkes certainly knows how to design cool.  From underwater fighter jets to this underwater race car.  I noticed that there is no photo showing ingress/egress on the surface.  Personal submarines, in my humble opinion, really should have sufficient freeboard (often a conning tower) to allow the pilot to operate the vessel solo (without a launch crew and/or crane).  Maybe this one does, the Super Falcon does not.</span><span style="color:black;"></span></div><div></div><div style="background:white;"><span style="color:black;">But is sure looks good enough to get the male youth off the jetski and into a submarine.  I know, jetskis are a whole lot cheaper than this boat.</span><span style="color:black;"></span></div><div></div><div style="background:white;"><span style="color:black;">Tim</span><span style="color:black;"></span></div><div></div><div style="background:white;"><span style="color:black;"></span><span style="color:black;"></span> </div><div></div><div style="background:white;margin-bottom:12pt;"><span style="color:black;"></span> </div><div><div><div style="border-width:1pt medium medium;border-style:solid none none;border-color:rgb(225, 225, 225) currentColor currentColor;padding:3pt 0cm 0cm;"><div></div></div></div></div><div style="background:white;"><b><span lang="EN-US" style="color:black;">From:</span></b><span lang="EN-US" style="color:black;"> Personal_Submersibles [<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <b>On Behalf Of </b>Alan James via Personal_Submersibles<br clear="none"><b>Sent:</b> November-17-15 10:12 PM<br clear="none"><b>To:</b> Personal Submersibles General Discussion <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"><b>Subject:</b> [PSUBS-MAILIST] Deep Flight Dragon</span><span style="color:black;"></span></div><div></div><div style="background:white;"><span style="color:black;"></span> </div><div><div><div></div></div></div><div style="background:white;"><span style="color:black;">Here's a link to Hawke's new Deep Flight Dragon.</span></div><div><div></div></div><div style="background:white;"><span style="color:black;"><a rel="nofollow" shape="rect" target="_blank" href="http://www.deepflight.com/dragon/"><span style="background:white;">Dragon - DeepFlight - Advanced Personal Submarines and Undersea Technology</span></a></span></div><div><div></div></div><div style="background:white;"><span style="color:black;">400ft depth capable with composite hull, a 40V system & brushless direct drive</span></div><div><div></div></div><div style="background:white;"><span style="color:black;">motors (like I'm trying to make).</span></div><div><div></div></div><div style="background:white;"><span style="color:black;">Very similar in appearance to the 2 person sub Phil is involved with.</span></div><div><div></div></div><div style="background:white;"><span style="color:black;">There is a specifications link on the page.</span></div><div><div></div></div><div style="background:white;"><span style="color:black;">Alan</span></div><div style="background:white;"><span style="color:black;"></span> </div><div></div><div style="background:white;"><span style="color:black;">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http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