<br><font size=2 face="sans-serif">Chris</font>
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<br><font size=2 face="sans-serif">The wood props do not have the ability have the deep pitches of 12 and 14 that are standard on the APC props. As a result a larger diameter must be used, which can be a problem. The wood grain nature of the prop also does not allow for better tip shaping, reducing efficiency and causing alot of noise. The answer seem to be the CF props, that appeared a couple of years ago, but it seems that there are not so many anymore. <br>
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Gray Fowler<br>
Principal Chemical Engineer<br>
Composites Engineering</font>
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<td><font size=1 face="sans-serif"><b>"White, Chris" <chris@ssd.fsi.com></b></font>
<br><font size=1 face="sans-serif">Sent by: discussion-request@nsrca.org</font>
<p><font size=1 face="sans-serif">05/27/2004 11:15 AM</font>
<br><font size=1 face="sans-serif">Please respond to discussion</font>
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<br><font size=1 face="sans-serif"> To: <discussion@nsrca.org></font>
<br><font size=1 face="sans-serif"> cc: </font>
<br><font size=1 face="sans-serif"> Subject: Wood props for 1.40 pattern birds?</font></table>
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<br><font size=2 color=blue face="Arial"> Has anyone tried stock wood propellers on 1.40's and found that they can live with the performance compromises from composites? Just wondering because of the desire for light weight aircraft.</font>
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<br><font size=2 color=blue face="Arial">Thanks,</font>
<br><font size=2 color=blue face="Arial">Chris White</font>
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