[NSRCA-discussion] Wing Sweep Angle?

[Ed White]

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.

Ed




________________________________
 From: J N Hiller <jnhiller at earthlink.net>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org> 
Sent: Sunday, December 8, 2013 7:03 PM
Subject: Re: [NSRCA-discussion] Wing Sweep Angle?
 

Thank you that's exactly what I wanted to know. I've changed it on different
airplanes and wanted to use a 'correct' standard reference when listing
design parameters. I'm finding some sweep is good more isn't, in my opinion.
Jim


-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Ryan Smith
Sent: Sunday, December 08, 2013 2:21 PM
To: 'General pattern discussion'
Subject: Re: [NSRCA-discussion] Wing Sweep Angle?

Hi Jim,

I was always taught to use the aerodynamic center of the root and tip, and
project a line down the span of the wing across these two points. It's
pretty close to 25% generally; it may be a few percent off, but for the
purposes of calculation, it's really close. There are enough variables in
the scheme of things to render that exact enough for our purposes.

I hope this helps.

Best regards,

Ryan

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of J N Hiller
Sent: Sunday, December 08, 2013 4:17 PM
To: NSRCA Mailing List
Subject: [NSRCA-discussion] Wing Sweep Angle?

Question!
How dose one measure wing sweep angle on tapered wing panels? Is it located
as a percentage of cord?
Jim Hiller



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