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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>The Falcon 21x14 V2 I received this week from F3A/U weighs 38g.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>The APC 21x14 I had been using weighs 129g.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Dave Harmon<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>NSRCA 586<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>K6XYZ[at]sbcglobal[dot]net<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Sperry, Ok.<o:p></o:p></span></b></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>mike mueller<br><b>Sent:</b> Thursday, December 06, 2012 7:41 AM<br><b>To:</b> General pattern discussion<br><b>Subject:</b> Re: [NSRCA-discussion] Serious Torque on the Nose of the Model - RESUBMITTED<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='color:black'>Charlie the Falcon V2 props should weigh in less than 50 grams. 72 grams is more like the V1 Falcons.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'> I should know I have a lot of them!<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'> Mike<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><div><div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Charlie Barrera <<a href="mailto:charliebarrera@consolidated.net">charliebarrera@consolidated.net</a>><br><b>To:</b> <a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a> <br><b>Sent:</b> Wednesday, December 5, 2012 10:59 PM<br><b>Subject:</b> Re: [NSRCA-discussion] Serious Torque on the Nose of the Model - RESUBMITTED</span><span style='color:black'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='color:black'><br>I was using a APC 20.5 X 12WE prop. I had previously used a Falcon V2 21 X<br>14. I had flown with the Falcon a couple of times. I used the APC after<br>noticing the Falcon had delaminated on the leading edge. The difference in<br>weight was substantial - the Falcon prop weighed 72g vs. the APC was around<br>120g (I never weighed it but immediately noticed the difference). The<br>difference in the rotating mass (the propeller disc) produced greater<br>rotational forces. If you can imagine a small gyroscope spinning in your<br>hand, when you move it perpendicular to its rotating axis, you get a force<br>that is at a right angle to the axis. This is the force that the fuselage<br>must absorb. When I powered up and increased the roll rate for the turn to<br>downwind, the structure failed. I had seen several WindS Pro's fly with<br>Q80's nose mounted with no rear brace. There were no problems that I heard<br>of. When it failed on me, I had an ahah moment and should have known better.<br>I have written an article for the K Factor.<br><br>Charlie<br><br><br><o:p></o:p></span></p></div></div></div></div></body></html>