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At the same time that Toshiba sold our submarine propeller design to
the Russians, and the machinery to make them to the Norwegians. It all
happened ~1987+/-<br>
As is known, a submarine's most potent weapon is the fact that it is
nearly undetectable; the propeller design is a major function of that
low noise emission, per the new Seawolf class of boats.<br>
Dean Pappas wrote:<br>
<blockquote
cite="midEE17DCCB005C1B4EBCE4863113BB25D7C07035@kcnt4.kodeos.com"
type="cite">
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<div><span class="998213618-17112004"><span class="267095318-17112004"><font
face="Arial" size="2">That's right, and it was a closely held
technology until only a few years before APCs became available.</font></span></span></div>
<div><span class="998213618-17112004"></span> </div>
<div><span class="998213618-17112004">The benefits of the scimitar
shape for delaying compressibility effects at high prop tip Mach
numbers have been known since WW2. As it turns out, Von proved the
value of knowing how to read!</span></div>
<div> </div>
<p><font face="Times New Roman">Dean Pappas</font> <br>
<font face="Times New Roman">Sr. Design Engineer</font> <br>
<font face="Times New Roman">Kodeos Communications</font> <br>
<font face="Times New Roman">111 Corporate Blvd.</font> <br>
<font face="Times New Roman">South Plainfield, N.J. 07080</font> <br>
<font face="Times New Roman">(908) 222-7817 phone</font> <br>
<font face="Times New Roman">(908) 222-2392 fax</font> <br>
<font face="Times New Roman"><a class="moz-txt-link-abbreviated" href="mailto:d.pappas@kodeos.com">d.pappas@kodeos.com</a></font> </p>
<blockquote style="margin-right: 0px;" dir="ltr">
<div class="OutlookMessageHeader" align="left" dir="ltr"><font
face="Tahoma" size="2">-----Original Message-----<br>
<b>From:</b> <a class="moz-txt-link-abbreviated" href="mailto:discussion-request@nsrca.org">discussion-request@nsrca.org</a>
[<a class="moz-txt-link-freetext" href="mailto:discussion-request@nsrca.org">mailto:discussion-request@nsrca.org</a>]<b>On Behalf Of </b><a class="moz-txt-link-abbreviated" href="mailto:DaveL322@comcast.net">DaveL322@comcast.net</a><br>
<b>Sent:</b> Wednesday, November 17, 2004 1:44 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:discussion@nsrca.org">discussion@nsrca.org</a><br>
<b>Subject:</b> [SPAM] RE: Unusal Props<br>
<br>
</font></div>
<div>I believe the CAD/CAM, software, algorithms, etc used to
develop the technology/process for the APC prop line came from "quiet"
propellers on submarines.</div>
<div> </div>
<div>Regards,</div>
<div> </div>
<div>Dave Lockhart</div>
<div><a href="mailto:DaveL322@comcast.net">DaveL322@comcast.net</a></div>
<div> </div>
<blockquote
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Original message -------------- <br>
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<div><span class="399543318-17112004">Dave Von Linsowe was
experimenting with semi-scimitar shaped props at that time, I wonder if
APC was influenced by his efforts.</span></div>
<div><span class="399543318-17112004"></span> </div>
<div><span class="399543318-17112004"></span> </div>
<div><span class="399543318-17112004"></span> </div>
<div><span class="399543318-17112004">Rich</span></div>
<div><span class="399543318-17112004"></span> </div>
<blockquote style="margin-right: 0px;" dir="ltr">
<div> </div>
<div class="OutlookMessageHeader" align="left" dir="ltr"
lang="en-us"><font face="Tahoma">-----Original Message-----<br>
<b>From:</b> <a class="moz-txt-link-abbreviated" href="mailto:discussion-request@nsrca.org">discussion-request@nsrca.org</a>
[<a class="moz-txt-link-freetext" href="mailto:discussion-request@nsrca.org">mailto:discussion-request@nsrca.org</a>] <b>On Behalf Of </b><a class="moz-txt-link-abbreviated" href="mailto:Rcmaster199@aol.com">Rcmaster199@aol.com</a><br>
<b>Sent:</b> Wednesday, November 17, 2004 1:32 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:discussion@nsrca.org">discussion@nsrca.org</a><br>
<b>Subject:</b> Re: Unusal Props<br>
<br>
</font></div>
<font id="role_document" color="#000000" face="Arial">
<div>
<div>Yes we do. The semi-scimitar design was a huge departure
from the "Normal". I heard from many "...what an ugly prop.....never
will use.... blah, blah, blah...." among other things. But performance
has silenced everyone.</div>
<div> </div>
<div>Matt</div>
<div> </div>
<div> </div>
<div>In a message dated 11/17/2004 1:24:21 PM Eastern Standard
Time, <a class="moz-txt-link-abbreviated" href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</a> writes:</div>
<blockquote
style="border-left: 2px solid blue; padding-left: 5px; margin-left: 5px;"><font
style="background-color: transparent;" color="#000000" face="Arial">
<div><font face="Arial">Mostly the Rev Ups were used because
they made our motors SING!!! I mean FAST...LOUD...but never went
anywhere.</font></div>
<div><font face="Arial"> We didn't know better.</font></div>
<div> </div>
<div><font face="Arial">Then came MK and Asano....</font></div>
<div><font face="Arial">Then this maverick APC thing....Boys,
we remember when THOSE first hit the pits, don't we??????????</font></div>
<div><br>
Bob Pastorello<br>
NSRCA 199 AMA 46373<br>
<a title="mailto:rcaerobob@cox.net"
href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</a><br>
<a title="http://www.rcaerobats.net/"
href="http://www.rcaerobats.net/">www.rcaerobats.net</a></div>
<div> </div>
<div> </div>
<blockquote
style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">-----
Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>From:</b>
<a title="mailto:perkinsrx@centurytel.net"
href="mailto:perkinsrx@centurytel.net">Eddie Batchelor</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:</b>
<a title="mailto:discussion@nsrca.org"
href="mailto:discussion@nsrca.org">discussion@nsrca.org</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b>
Wednesday, November 17, 2004 12:18 PM</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b>
RE: Unusal Props</div>
<div><br>
</div>
True It might be that.<br>
I don't think I've ever seen a prop labeled as to how many blades.<br>
Interesting thought<br>
I like you're "tlarld"<br>
<br>
the prop markings are like this<br>
2<br>
12 O 5<br>
REV-UP<br>
<br>
with the "O" being the hole in the middle.<br>
<br>
It's times like this I wish the "list" could handle pictures. <G><br>
<br>
Eddie</blockquote>
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