<html><body><div style="color:#000; background-color:#fff; font-family:tahoma, new york, times, serif;font-size:10pt">Usually taken to be the angle between the longitudinal axis and the 25% chord line. Not the same as LE sweep for a tapered wing.<br><br>Ed<br><div><span><br></span></div><div><br></div> <div style="font-family: tahoma, new york, times, serif; font-size: 10pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> J N Hiller <jnhiller@earthlink.net><br> <b><span style="font-weight: bold;">To:</span></b> General pattern discussion <nsrca-discussion@lists.nsrca.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, December 8, 2013 7:03 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [NSRCA-discussion] Wing Sweep Angle?<br> </font> </div> <div
class="y_msg_container"><br>Thank you that's exactly what I wanted to know. I've changed it on different<br>airplanes and wanted to use a 'correct' standard reference when listing<br>design parameters. I'm finding some sweep is good more isn't, in my opinion.<br>Jim<br><br><br>-----Original Message-----<br>From: <a ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org" href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a><br>[mailto:<a ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org" href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>]On Behalf Of Ryan Smith<br>Sent: Sunday, December 08, 2013 2:21 PM<br>To: 'General pattern discussion'<br>Subject: Re: [NSRCA-discussion] Wing Sweep Angle?<br><br>Hi Jim,<br><br>I was always taught to use the aerodynamic center of the root and tip, and<br>project a line down the span of the wing across these two
points. It's<br>pretty close to 25% generally; it may be a few percent off, but for the<br>purposes of calculation, it's really close. There are enough variables in<br>the scheme of things to render that exact enough for our purposes.<br><br>I hope this helps.<br><br>Best regards,<br><br>Ryan<br><br>-----Original Message-----<br>From: <a ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org" href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a><br>[mailto:<a ymailto="mailto:nsrca-discussion-bounces@lists.nsrca.org" href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>] On Behalf Of J N Hiller<br>Sent: Sunday, December 08, 2013 4:17 PM<br>To: NSRCA Mailing List<br>Subject: [NSRCA-discussion] Wing Sweep Angle?<br><br>Question!<br>How dose one measure wing sweep angle on tapered wing panels? Is it located<br>as a percentage of cord?<br>Jim
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