<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>That Knotstick looks really cool , a very basic design. Might get one for my sailboat !</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: Douglas Suhr via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] Knotstick<BR>Date: Tue, 9 Feb 2016 08:27:50 -0500<BR><BR></DIV><DIV dir="ltr">I like the idea! ~ Douglas S. </DIV><DIV><BR><DIV>On Mon, Feb 8, 2016 at 9:41 PM, Alan James via Personal_Submersibles <SPAN dir="ltr"><<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>></SPAN> wrote:<BR><BLOCKQUOTE style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;"><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Doug,</SPAN></DIV><DIV dir="ltr"><SPAN>to adapt it to a submarine you would need to do something like </SPAN></DIV><DIV dir="ltr"><SPAN>house the disk end in a 3" diameter piece of plastic tubing.</SPAN></DIV><DIV dir="ltr"><SPAN>You could attach a fine nylon line to the back of the disk & to</SPAN></DIV><DIV dir="ltr"><SPAN>a hole in the pipe to stop the disk drifting out & tangling somewhere.</SPAN></DIV><DIV dir="ltr"><SPAN>Make sure there is enough slack in the nylon that it doesn't interfere with</SPAN></DIV><DIV dir="ltr"><SPAN>the disks range of movement.</SPAN></DIV><DIV dir="ltr"><SPAN>We could probably adapt this concept & come up with a submarine specific</SPAN></DIV><DIV dir="ltr"><SPAN>item. Maybe a clear tube with the disk inside pushing against a spring, with the</SPAN></DIV><DIV dir="ltr"><SPAN>disk moving along markings on the tube.</SPAN></DIV><DIV dir="ltr"><SPAN>Alan </SPAN></DIV><DIV><BR><BR></DIV><DIV style="display: block;"> <DIV style="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 dir="ltr"> <FONT face="Arial" size="2"> <HR size="1"> <B><SPAN style="font-weight: bold;">From:</SPAN></B> Douglas Suhr via Personal_Submersibles <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>><BR> <B><SPAN style="font-weight: bold;">To:</SPAN></B> Personal Submersibles General Discussion <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> <BR> <B><SPAN style="font-weight: bold;">Sent:</SPAN></B> Tuesday, February 9, 2016 3:07 PM<BR> <B><SPAN style="font-weight: bold;">Subject:</SPAN></B> Re: [PSUBS-MAILIST] Knotstick<BR> </FONT> </DIV><DIV><DIV> <DIV><BR><DIV><DIV><DIV dir="ltr">Cool concept, thanks for sharing Alan. I'll have to look into one of those, I like the simplest way of doing things! ~ Douglas S. </DIV><DIV><BR><DIV>On Mon, Feb 8, 2016 at 6:15 PM, Alan James via Personal_Submersibles <SPAN dir="ltr"><<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>></SPAN> wrote:<BR><BLOCKQUOTE style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;"><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><DIV>I posted this on the 7th but didn't see it.</DIV><DIV dir="ltr">Apologies if you already received it.</DIV><DIV dir="ltr">Anyone looked at or used these.</DIV><DIV dir="ltr">They record speed.</DIV><DIV dir="ltr"><A style="color: rgb(25, 106, 212); background-color: rgb(255, 255, 255);" href="http://www.knotstick.com/">http://www.knotstick.com/</A><BR></DIV><DIV>They look like they could be mounted by a side view port</DIV><DIV dir="ltr">to show speed. I had to google images of them to see how they were</DIV><DIV dir="ltr">constructed. It's a disk on a string that drags through the water. It is attached </DIV><DIV dir="ltr">to a stainless spring in a cylinder & as the spring is extended it pushes a white sleeve</DIV><DIV dir="ltr">along a calibration marked on the cylinder to indicate speed.</DIV><SPAN><FONT color="#888888"></FONT></SPAN><DIV dir="ltr">Alan</DIV></DIV></DIV></DIV><BR>_______________________________________________<BR>
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