<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif;color:rgb(153,153,230)">Thank you all for responding. Matt or Richard, can y'all give me maybe an "ish" idea of the chord at the root of the stab and a span or, even better, sq. in. of the stabs? The numbers so far seem to be what I was expecting. I was planning on having them set 3 rates. Maybe one at 20 deg., one at 15 deg. and one at 10 deg. I was wondering if it'd be about the same as the throw on an elevator. Thanks again!</div><div class="gmail_default" style="font-family:georgia,serif;color:rgb(153,153,230)"><br></div><div class="gmail_default" style="font-family:georgia,serif;color:rgb(153,153,230)">Scott</div><div class="gmail_default" style="font-family:georgia,serif;color:rgb(153,153,230)"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><b style="color:rgb(153,153,230)"><font style="font-family:comic sans ms,sans-serif" size="4">Scott A. McHarg</font></b></div><div dir="ltr"><br></div><div dir="ltr"><div>Takeoff is optional. Landing is mandatory!</div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Sep 26, 2019 at 12:32 PM Matt Griffitt via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">A flying stab is more effected than a elevator. Travel will be 60, or 70%.of a elevators travel. <div dir="auto">I have been flying a flying stab for the last 8 years . On all of BJ Craft's planes the total amount of travel is 2.25 inches at the frount stab tube. </div><div dir="auto">I hope this helps.<br><div dir="auto"><div dir="auto"><br></div><div dir="auto"><br><br><div dir="auto">Matt Griffitt <br>ADGaero.com<br>334.380.8228</div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Sep 26, 2019, 12:11 PM Richard B. Strickland via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal">I agree on a pattern airplane (I have two BiSides with flying stabs—anybody want one?) as you have the advantage of forced airflow over the stab, but on an F4 twin 70 EDF, I run out of elevator on low rate at around 20 with flaps and slats
on landing. Maybe run 10-13 on low, but have some significant reserve on high, like 25+ and maybe 14-22 mid range for maneuvering speeds. Sounds like a fun project!</p>
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<p class="MsoNormal">Richard Strickland</p>
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<p class="MsoNormal">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986" rel="noreferrer" target="_blank">
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<div id="gmail-m_-4912059987787141514m_2885262860516693405divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> NSRCA-discussion <<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" rel="noreferrer" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a>> on behalf of John Decker via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" rel="noreferrer" target="_blank">nsrca-discussion@lists.nsrca.org</a>><br>
<b>Sent:</b> Thursday, September 26, 2019 11:49:19 AM<br>
<b>To:</b> General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" rel="noreferrer" target="_blank">nsrca-discussion@lists.nsrca.org</a>>; Scott McHarg <<a href="mailto:scmcharg@gmail.com" rel="noreferrer" target="_blank">scmcharg@gmail.com</a>><br>
<b>Subject:</b> Re: [NSRCA-discussion] Flying stab travel</font>
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<div dir="ltr">Scott, </div>
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<div dir="ltr">Normally, I set elevators at 10 degrees to 12 degrees for maiden. When I had a Nuance with a full flying stab it was so responsive I had it dialed down to 8 degrees by the time I had it trimmed out. And I found the radii could
get sharp pretty fast so I had about 20% more expo programmed as well. Definitely more surface area makes a big difference. The nice thing is that once initial incidence is set, you adjust using elevator trim rather than incidence adjusters.</div>
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<div dir="ltr">Hope that helps,</div>
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<div dir="ltr">John</div>
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<div>On Thursday, September 26, 2019, 11:29:40 AM CDT, Scott McHarg via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" rel="noreferrer" target="_blank">nsrca-discussion@lists.nsrca.org</a>> wrote:
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Howdy,</div>
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I'm looking for a little advice on a full flying stab. I'm teaching an Aerospace Senior Capstone Design class at Texas A&M and one of my students' teams is scratch building a plane based on a supersonic business jet in sub-scale utilizing an EDF. That part
isn't really part of the equation but wanted you to understand what they're doing.</div>
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The team has figured out the design and mechanical connections which I have approved but we are needing an idea of how much travel the stab needs. I understand that there are many variables including size of the stab, CG, AC, etc. but I'm looking to give them
a place to start. I was thinking of the Bi-Side and wondering if someone could give me, in degrees, the amount of travel for the stab so that we have a starting point. I'm sure I'll have fun with the maiden but, hopefully, we will be in the ballpark.</div>
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Thanks!</div>
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Scott</div>
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<div dir="ltr"><b style="color:rgb(153,153,230)"><font style="font-family:"comic sans ms",sans-serif" size="4">Scott A. McHarg</font></b></div>
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<div>Takeoff is optional. Landing is mandatory!</div>
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