<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_1447959211194_2849"><span>Alec,</span></div><div id="yui_3_16_0_1_1447959211194_2850"><span id="yui_3_16_0_1_1447959211194_2936">I think you are on to it with the spoilers function being to counteract</span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2851"><span id="yui_3_16_0_1_1447959211194_2883">the positive buoyancy. It would save using the 4 vertical thrusters,</span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2851"><span>but would only work at speed.</span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2882"><span id="yui_3_16_0_1_1447959211194_2881">If you look at the sub side on, the profile at the front would cause it</span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2879"><span id="yui_3_16_0_1_1447959211194_2878">to nose dive & that would be accentuated by the rear thrusters driving</span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2879"><span id="yui_3_16_0_1_1447959211194_3022">it down. So the rear spoiler would counter that.</span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2879"><span id="yui_3_16_0_1_1447959211194_3082">Maybe the spoiler could be an add on for David Columbo who has </span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2879"><span>a similar design.</span></div><div dir="ltr" id="yui_3_16_0_1_1447959211194_2879"><span>Cheers Alan</span></div><br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1447959211194_2847"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1447959211194_2846"> <div dir="ltr" id="yui_3_16_0_1_1447959211194_2848"> <hr size="1" id="yui_3_16_0_1_1447959211194_2877"> <font size="2" face="Arial" id="yui_3_16_0_1_1447959211194_2876"> <b><span style="font-weight:bold;">From:</span></b> Alec Smyth 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 2:39 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_1447959211194_2845"><br><div id="yiv7533059023"><div id="yui_3_16_0_1_1447959211194_2844"><div dir="ltr" id="yui_3_16_0_1_1447959211194_2843">I have to say one thing I wonder about is the function of that rear spoiler. It certainly makes the vessel look more like a race car, but can anyone think whether it actually serves a purpose? All I can think is that because she's got positive buoyancy, the spoiler forces the boat under when there's forward motion. It doesn't look like the spoiler pivots, and it would seem cumbersome to make the down-force a function of forward velocity. <div id="yui_3_16_0_1_1447959211194_2875"><br clear="none"></div><div id="yui_3_16_0_1_1447959211194_2874">Best,</div><div id="yui_3_16_0_1_1447959211194_2852"><br clear="none">Alec</div></div><div class="yiv7533059023gmail_extra" id="yui_3_16_0_1_1447959211194_2856"><br clear="none"><div class="yiv7533059023gmail_quote" id="yui_3_16_0_1_1447959211194_2855">On Wed, Nov 18, 2015 at 10:58 PM, Alan James via Personal_Submersibles <span dir="ltr" id="yui_3_16_0_1_1447959211194_2854"><<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org" id="yui_3_16_0_1_1447959211194_2853">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote class="yiv7533059023gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;" id="yui_3_16_0_1_1447959211194_2863"><div class="qtdSeparateBR"><br><br></div><div class="yiv7533059023yqt8790131170" id="yiv7533059023yqt11889"><div id="yui_3_16_0_1_1447959211194_2862"><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2861"><div id="yui_3_16_0_1_1447959211194_2860"><div id="yui_3_16_0_1_1447959211194_2859"><div style="background-color:rgb(255,255,255);" id="yui_3_16_0_1_1447959211194_2858"><div style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_3138"><span>Hi Tim,</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2873"><span id="yui_3_16_0_1_1447959211194_2872">yes it would be difficult to get in to that in anything other than a mill pond;</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2871"><span id="yui_3_16_0_1_1447959211194_2870">& I wonder about the stability also; the way the bouyancy seems to be placed low down.</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2869"><span id="yui_3_16_0_1_1447959211194_2868">From the videos I've seen it looks like the hatch can only be opened from the outside,</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2857"><span>could be wrong though.</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_3140"><span id="yui_3_16_0_1_1447959211194_3139">The large diameter thrusters look like they could be made from bike hub motors. They</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2867"><span id="yui_3_16_0_1_1447959211194_2866">are the right voltage at 40V & are only 1500W. They are direct drive & getting their torque</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;"><span>by using large diameter narrow motors.</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2864"><span id="yui_3_16_0_1_1447959211194_3141">There are some good photos of the fuselage & hull in the links on this page.</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;" id="yui_3_16_0_1_1447959211194_2865"><span id="yui_3_16_0_1_1447959211194_3142">He is not scared to think outside the box.</span></div><div dir="ltr" style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;"><span>Love a visit to his workshop. Would fly over for that :)</span></div><div dir="ltr"><a rel="nofollow" shape="rect" target="_blank" href="http://www.deepflight.com/category/news/" style="background-color:rgb(255,255,255);">http://www.deepflight.com/category/news/</a><br clear="none"></div><div>Cheers Alan</div><br clear="none"> <div style="color:rgb(0,0,0);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div><br clear="none"><br clear="none"></div><div><div dir="ltr"> <hr size="1"> <font size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> 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>><span class="yiv7533059023"><br clear="none"> <b><span style="font-weight:bold;">To:</span></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"> </span><b><span style="font-weight:bold;">Sent:</span></b> Thursday, November 19, 2015 3:11 PM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Deep Flight Dragon<br clear="none"> </font> </div> <div><div><div class="yiv7533059023h5"><br clear="none"><div><div><div><div><span style="font-size:11.0pt;">Alan,</span></div><div><span style="font-size:11.0pt;">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></div><div><span style="font-size:11.0pt;">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></div><div><span style="font-size:11.0pt;">Tim</span></div><div><span style="font-size:11.0pt;"> </span></div><div><br clear="none"><br clear="none"></div><div><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm 0cm 0cm;"><div><b><span lang="EN-US" style="font-size:11.0pt;">From:</span></b><span lang="EN-US" style="font-size:11.0pt;"> Personal_Submersibles [mailto:<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="mailto:personal_submersibles-bounces@psubs.org">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></div></div></div><div> </div><div><div><div style="background:white;"><span>Here's a link to Hawke's new Deep Flight Dragon.</span></div></div><div><div style="background:white;"><span><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 style="background:white;"><span>400ft depth capable with composite hull, a 40V system & brushless direct drive</span></div></div><div><div style="background:white;"><span>motors (like I'm trying to make).</span></div></div><div><div style="background:white;"><span>Very similar in appearance to the 2 person sub Phil is involved with.</span></div></div><div><div style="background:white;"><span>There is a specifications link on the page.</span></div></div><div><div style="background:white;"><span>Alan</span></div></div></div></div></div></div></div><br clear="none"></div></div><div>_______________________________________________<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://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div></div></div><br clear="none">_______________________________________________<br clear="none">
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