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<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=892432415-18111999>I
suggest you contact Scott Stewart at Proper Pitch in Delaware. They have a
web site and you can contact Scott at <A
href="mailto:stew@shore.intercom.net">stew@shore.intercom.net</A>. The
selection of a suitable prop is somewhat an art, but many factors are needed,
including displacement, reduction ratio, horsepower, desired speed and shaft
rpms. I think that while a 13 inch diameter two-blade is about the largest
you can fit into the A30 aperture, the top and bottom clearance are too
small to be the optimum. See the tables in Skene or Calder for a
start. The props suitable for the Atomic 4 are not recommended for a
slower-turning diesel.</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=892432415-18111999>Bob
Lincoln</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=892432415-18111999>#590
Gimli</SPAN></FONT></DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader><FONT face="Times New Roman"
size=2>-----Original Message-----<BR><B>From:</B> Peter Hay
[mailto:phay@netcom.ca]<BR><B>Sent:</B> Wednesday, November 17, 1999 7:08
PM<BR><B>To:</B> alberg30@onelist.com<BR><B>Subject:</B> [alberg30] Diesel
Prop Size/Pitch<BR><BR></DIV></FONT>
<DIV><FONT size=2>Has anyone experience with this problem?</FONT> </DIV>
<DIV> </DIV>
<DIV><FONT size=2>Peter Hay</FONT></DIV>
<DIV><FONT size=2>Rubicon KC384</FONT></DIV></BLOCKQUOTE></BODY></HTML>