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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi All,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m fairly new to pattern flying. I’m
considering to buy the Focus sport and want to “keep it simple”
with the engine. I know the Focus was design for YS 110 but for cost/
simplicity reasons i am considering the OS 91 FX or the OS 120 AX. In the OS web
site they claim that the 120AX is 20% more power but when I compare efficiency it
looks like the 91FX wins. Its 6% more efficient in power to Wight and 16% more
in power to displacement. Am I missing something? Practical RPM misleading
numbers? What would be your recommendation?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=289
style='width:217.0pt;margin-left:-1.15pt;border-collapse:collapse'>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border:solid windowtext 1.0pt;
border-left:none;padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>120AX<o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border:solid windowtext 1.0pt;
border-left:none;padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>91FX<o:p></o:p></span></font></p>
</td>
</tr>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;
height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Displacement (Cu in)<o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>1.2<o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>0.91<o:p></o:p></span></font></p>
</td>
</tr>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;
height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Weight (gr)<o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>650<o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>550<o:p></o:p></span></font></p>
</td>
</tr>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;
height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Output (BHP@RPM)<o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>3.1@9000<o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>2.8@15,000<o:p></o:p></span></font></p>
</td>
</tr>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;
height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Cost<o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>250<o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>200<o:p></o:p></span></font></p>
</td>
</tr>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;
height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</td>
</tr>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;
height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>output/ weight<o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>0.004769<o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>0.005090909<o:p></o:p></span></font></p>
</td>
</tr>
<tr height=17 style='height:12.75pt'>
<td width=133 nowrap height=17 valign=bottom style='width:100.0pt;border:
solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;
height:12.75pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Output/ displacement<o:p></o:p></span></font></p>
</td>
<td width=64 nowrap height=17 valign=bottom style='width:48.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>2.583333<o:p></o:p></span></font></p>
</td>
<td width=92 nowrap height=17 valign=bottom style='width:69.0pt;border-top:
none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
padding:0in 5.4pt 0in 5.4pt;height:12.75pt'>
<p class=MsoNormal align=right style='text-align:right'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>3.076923077<o:p></o:p></span></font></p>
</td>
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</table>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Best Regards,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Aviv</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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