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<DIV><FONT face=Arial size=2>Paul,</FONT></DIV>
<DIV><FONT face=Arial size=2>This is a good idea. We sell the scoops but I
can vouch for the nasa duct idea. It is on the plane I flew at Nats.
There's a picture on our website (<A
href="http://www.aeroslave.com">www.aeroslave.com</A>). Go to the Symphony
page and scroll to the bottom. Also take a look at the chrome rendering
picture. On this you can see how the nose of the fuse curves so that a
hole cut in the right spot is actually going to gobble some air from the
oncoming freestream. One thing I like about the nasa duct is it gives me a
finger hold for my pointer finger because the Symphony fuse front is so wide you
can't really grab it well. Also, I put a black CF reverse scoop under the
duct hole so you can't look in and see the crankcase. Remember the
incoming wind doesn't need to blow on the crankcase. It will blow around
the engine and be drawn into the faster moving air moving over the head.
This draws the heat from the whole crankcase area.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>--Lance</FONT></DIV>
<DIV> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=trexlesh@msn.com href="mailto:trexlesh@msn.com">Rex LESHER</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, September 15, 2007 1:34
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Engine
cooling</DIV>
<DIV><BR></DIV><!--[gte IE 5]><?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]-->
<DIV>
<DIV>Paul</DIV>
<DIV> </DIV>
<DIV>There are a few options... If you don't like the looks of having a
scoop on top of the fuselage nose, you can use a nasa duct. All you will
see</DIV>
<DIV>is a somewhat teardrop shaped hole in the fuse.... The other
way is to place a scoop on top. Aeroslave has scoops you can order, or
make one</DIV>
<DIV>yourself and bond it on. I like the nasa duct because you can
simply grind the duct hole in the fuse and reseal the raw edges without
making</DIV>
<DIV>a mess of the paint job. The air directing scoop is bonded on the
inside of the plane and directs air onto the crankcase. I
don’t have any</DIV>
<DIV>pics of the ones I've used. Maybe someone out there can help.
If not, I could sketch it out for you.... It's pretty simple to do, and
doesn't take </DIV>
<DIV>much time.</DIV>
<DIV> </DIV>
<DIV>Rex</DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="FONT: 10pt arial"><B>From:</B> <A title=mailto:plachance@cox.net
href="mailto:plachance@cox.net">plachance@cox.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=mailto:nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, September 15, 2007 8:38
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Engine
cooling</DIV>
<DIV><BR></DIV>Hello all,<BR><BR>Well after about 20 flights or so I finally
solved my engine problem. The engine was getting hot but only the
crankcase half of the engine. The head had good cooling but air could
not get to or away from the crank case. The problem is I now fly 5-6
flights one after the other with no down time between flights. Last
time I flew the plane the field was always packed so I would fly a flight
and not fly again for a half hour or so, so the engine had a chance to cool
down even though there was little to no airflow to the bottom half of the
engine.<BR><BR>The question of the day is...How are people putting scoops on
the top of the engine compartment to get cooling air in to the
crankcase? I have a makeshift scoop made from the plastic lackaging
from a hotwheels car but need to make and install a permanent scoop.
The plane is really ugly with the makeshift scoop but I have flown it and it
proved to keep the engine cooler and the engine seems to be getting better
with every flight as opposed to worse like it was. <BR><BR>Thanks in
advance for the help. My guess is I will need to fabricate something
as I am leaving for a contest on the 21st. It will be my first contest
in about 10 years and I cannot wait.<BR><BR>Paul LaChance<BR>Va Beach,
VA<BR>_______________________________________________<BR>NSRCA-discussion
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href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A><BR></BLOCKQUOTE></DIV>
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