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leftmargin=0 marginwidth="0" marginheight="0"><font face="Courier New"
size=2>The day after.. </font>
<BR>
<BR>"Alan James" <alanlindsayjames@yahoo.com> schrieb:
<blockquote style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT:
5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<div style="FONT-SIZE: 14pt; COLOR: #000; FONT-FAMILY: HelveticaNeue,
Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;
BACKGROUND-COLOR: #fff"
><div><span>Thanks Alec.</span></div><div style="FONT-SIZE: 18px;
COLOR: rgb(0,0,0); FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue,
'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;
BACKGROUND-COLOR: transparent"
><span>Forget Minn kottas, this Dutch man is really on to
something.</span></div><div style="FONT-SIZE: 18px; COLOR: rgb(0,0,0);
FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
><span><a
href="http://www.youtube.com/watch?v=rZJTGqmtzBs">http://www.youtube.com/watch?v=rZJTGqmtzBs</a><br></span></div><div
style="FONT-SIZE: 18px; COLOR: rgb(0,0,0); FONT-STYLE: normal;
FONT-FAMILY: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida
Grande',
sans-serif; BACKGROUND-COLOR: transparent" >Alan</div><div><br></div>
<div style="FONT-SIZE: 14pt; FONT-FAMILY: HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif"> <div
style="FONT-SIZE: 12pt; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif"> <div dir="ltr"> <hr
size="1"> <font size="2" face="Arial"> <b><span style="FONT-WEIGHT:
bold">From:</span></b> Private <alecsmyth@gmail.com><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> Monday, October 28, 2013 8:20
AM<br> <b><span style="FONT-WEIGHT: bold">Subject:</span></b> Re:
[PSUBS-MAILIST] Group Help Request<br> </font> </div> <div
class="y_msg_container"><br><div id="yiv7756700121"><div><div>It would
be fine as long as the total work being done is held
constant. In other words swept area times pitch for the custom prop
equals swept area times pitch for the stock one. That's assuming equal
rpm. </div><div><br clear="none"></div><div>Once you put on the new
prop, verify by measuring the amps drawn. If it isn't drawing more amps
it won't be heating up more than with the standard prop.</div><div><br
clear="none"></div><div><br clear="none"></div><div>Best,</div><div><br
clear="none"></div><div>Alec<br clear="none"><br clear="none"><div><br
clear="none"></div></div><div class="yiv7756700121yqt4422353014"
id="yiv7756700121yqt81450"><div><br clear="none">On Oct 27, 2013, at
3:07 PM, Alan James <<A href="mailto:alanlindsayjames@yahoo.com"
target=_blank shape=rect rel=nofollow
ymailto="mailto:alanlindsayjames@yahoo.com">alanlindsayjames@yahoo.com</a>>
wrote:<br clear="none"><br clear="none"></div><blockquote
type="cite"><div><div style="FONT-SIZE: 14pt; COLOR: rgb(0,0,0);
FONT-FAMILY: HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
rgb(255,255,255)"
><div><span>I am wondering whether it is a good idea to change the
prop</span></div><div style="FONT-SIZE: 18px; COLOR: rgb(0,0,0);
FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
><span>size on the Minn Kotta. Or whether it would be good to get
advice</span></div><div style="FONT-SIZE: 18px; COLOR: rgb(0,0,0);
FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
><span>from Minn kotta first. After reading the issues about sub sea
motors & overheating</span></div><div style="FONT-SIZE: 18px; COLOR:
rgb(0,0,0); FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;
BACKGROUND-COLOR: transparent"
>I am a bit wary of increasing the load, amps & heat in the
motor by increasing</div><div style="FONT-SIZE: 18px; COLOR: rgb(0,0,0);
FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
>the prop size.</div><div style="FONT-SIZE: 18px; COLOR: rgb(0,0,0);
FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
>With regard to Kort nozzles.... I found a design on the internet,
then tracked down a bucket of suitable size & slope, fiber glassed
around a portion of it, then built up the thickness <span
style="BACKGROUND-COLOR: transparent">of the leading
edge.</span></div><div style="FONT-SIZE: 18px; COLOR: rgb(0,0,0);
FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
><span style="BACKGROUND-COLOR: transparent"
>Alan</span></div><div style="FONT-SIZE: 18px; COLOR: rgb(0,0,0);
FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
><br clear="none"></div><div style="FONT-SIZE: 18px; COLOR:
rgb(0,0,0); FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
><br clear="none"></div><div style="FONT-SIZE: 18px; COLOR:
rgb(0,0,0); FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; BACKGROUND-COLOR:
transparent"
><br clear="none"></div><div><br clear="none"></div> <div
style="FONT-SIZE: 14pt; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial,
'Lucida Grande', sans-serif"> <div style="FONT-SIZE: 12pt;
FONT-FAMILY: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida
Grande', sans-serif"> <div dir="ltr"> <hr size="1"> <font size="2"
face="Arial"> <b><span style="FONT-WEIGHT: bold">From:</span></b>
Private <<A href="mailto:alecsmyth@gmail.com" target=_blank
shape=rect rel=nofollow
ymailto="mailto:alecsmyth@gmail.com">alecsmyth@gmail.com</a>><br
clear="none"> <b><span style="FONT-WEIGHT: bold">To:</span></b> Personal
Submersibles General Discussion <<A
href="mailto:personal_submersibles@psubs.org" target=_blank shape=rect
rel=nofollow
ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
<br clear="none"> <b><span style="FONT-WEIGHT: bold">Sent:</span></b>
Monday, October 28, 2013 7:29 AM<br clear="none"> <b><span
style="FONT-WEIGHT: bold"
>Subject:</span></b> Re: [PSUBS-MAILIST] Group Help Request<br
clear="none">
</font> </div> <div class="yiv7756700121y_msg_container"><br
clear="none"><div id="yiv7756700121"><div><div>Hi Joe,</div><div><br
clear="none"></div><div>Thanks for doing this. I have a Minnkota 101
here that I can measure for you, but I also have some suggestions for
your consideration.<br clear="none"><br clear="none">Oil or air
compensation are
both easy and trouble free, so I really don't see much value-add in the
magnetic coupling. Or in a hard case. Ditto reverse, my trolling motor
thrusters with 13 years on them have yet to wear out the reverse washer,
and it's not like I don't use reverse.</div><div><br
clear="none"></div><div>Where I do see real room for improvement is with
props and nozzles. The stock props are very short pitched, so if you put
several 101s on a small sub for main propulsion, I suspect you would not
get the cruising speed that their combined horse power would otherwise
achieve. In other words, it would be like putting a big engine in your
car but only having first gear.</div><div><br
clear="none"></div><div>Emile shared with me that the nice kort on his
stern thruster is off a diving scooter. I researched those briefly and
indeed they're in the ballpark of trolling motor prop diameters, and
some appear to be true korts. Since kort nozzles are hard to make,
ID'ing one
that's a good match would be really useful. While looking at scooters,
I noticed some have variable pitch props. By variable I mean adjustable
with tools, not adjustable underway. That could prove a big performance
booster for our application.</div><div><br clear="none"></div><div>In
summary, I'd encourage a focus on the prop and nozzle, as I've found the
standard seals and reverse to be perfectly satisfactory. My trolling
motors leaked for the first time in 2012, after 12 years of use. I've
left the oil in them for years at a time. When I finally serviced them
last year, there were cheap rebuild kits readily
available. </div><div><br clear="none"></div><div>Do you need the
measurements of the inside bits too? </div><div><br
clear="none"></div><div><br clear="none"></div><div>Best,</div><div><br
clear="none"></div><div>Alec<br clear="none"><div><br
clear="none"></div></div><div class="yiv7756700121yqt5042607086"
id="yiv7756700121yqt16319"><div><br clear="none">On Oct 27, 2013, at
8:29 AM, Joe Perkel <<A href="mailto:josephperkel@yahoo.com"
target=_blank shape=rect rel=nofollow
ymailto="mailto:josephperkel@yahoo.com">josephperkel@yahoo.com</a>>
wrote:<br clear="none"><br clear="none"></div><blockquote
type="cite"><div><table cellspacing="0" cellpadding="0"
border="0"><tbody><tr><td valign="top" >All Psubber Alert.<br
clear="none"><br clear="none">A handful of members in conversation off
list are coming to the conclusion that perhaps a best solution to the
thruster issues discussed, is to improve on what has been demonstrated
to already be viable. That is Minn Kotas as demonstrated by Snoopy,
Idabel, et al. Parts are readily available and inexpensive. Case in
point here,.. <a rel="nofollow" shape="rect" target="_blank"
href="http://www.northlandmarine.com/MinnKotaQuickRef.htm">http://www.northlandmarine.com/MinnKotaQuickRef.htm</a><br
clear="none"><br clear="none">Hank has graciously offered his efforts in
modifying several he already has on hand, and I am willing to put in
many hours of CAD work to come up with working drawings, with an eye on
this armature in particular,.. <a rel="nofollow" shape="rect"
target="_blank"
href="http://www.northlandmarine.com/MinnKotaArmatureAssy92-100-216.htm">http://www.northlandmarine.com/MinnKotaArmatureAssy92-100-216.htm</a><br
clear="none"><br clear="none">The goal would be to add a mag coupling,
Kort nozzle, and true reversibility to a package that is compact, (4"
dia) and field serviceable / replaceable. The end product result would
be
open source to the PSUB community.<br clear="none"><br
clear="none">Immediate problem that needs a solution.<br
clear="none"><br clear="none">I need a lot of information and detail in
order to proceed. Particularly what I need is dimensioned section
drawings of appropriately sized models. Unfortunately, Minn Kota does
not make this information readily available as demonstrated here,... <a
rel="nofollow" shape="rect" target="_blank"
href="http://www.minnkotamotors.com/service/ascs.aspx">http://www.minnkotamotors.com/service/ascs.aspx</a><br
clear="none"><br clear="none">We need help accessing this information
otherwise the effort is hobbled from the start. If anyone can help in
this regard it would help tremendously. <br clear="none"><br
clear="none">Joe<br clear="none"><br clear="none"><br clear="none">Sent
from Yahoo! Mail for
iPad</td></tr></tbody></table></div></blockquote></div><blockquote
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<font face="Courier New" size=2> </font><font face="Courier New"
size=2><br><br>-- <br><BR>Carsten Standfuß<BR>Dipl.Ing.Schiffbau @
Meerestechnik<BR>Heinrich Reck Str.12A<BR>18211 Admannshagen<BR><BR>0172
8464 420<BR>WWW.Euronaut.org<BR>Carsten@euronaut.org</font></body>
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