<div>I've used the technique of attaching two lasers on each elevator half on flat stabs on my last four pattern planes, </div>
<div>though I've never done so on an anhedral stab. </div>
<div> </div>
<div>Three great things about this technique are: 1) you can project the dots out quite far (I normally do so about 6 to 10 feet) which greatly exaggerates </div>
<div>any difference in the travel of the elevators. 2) you can move the elevator up an down very rapidly and make sure the speed of travel </div>
<div>of each half is the same. It's quite easy to see if the dots stay next to each other, and 3) the lasers are so light that they don't effect the </div>
<div>movement of the elevators as long rods do.</div>
<div> </div>
<div>On a flat stab you can focus the two dots right next to each other or on top of each other but with the anhedral stab they will </div>
<div>cross as they move up and down, this should still work though but it may not as easy to see.</div>
<div> </div>
<div>BTW, I normally point mine at my white refrigerator, it works just fine, no need for anything fancy.</div>
<div> </div>
<div>Keith Black <br><br> </div>
<div><span class="gmail_quote">On 9/23/07, <b class="gmail_sendername">John Ferrell</b> <<a href="mailto:johnferrell@earthlink.net">johnferrell@earthlink.net</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div bgcolor="#ffffff">
<div><font face="Arial" size="2">This whole thread has me pondering the effects of the angle of the elevator hinge line.</font></div>
<div><font face="Arial" size="2">Is it too small to worry with or could there be some advantage there to be exploited?</font></div><span class="sg">
<div> </div>
<div><font face="Arial" size="2">John Ferrell W8CCW<br>"Life is easier if you learn to plow <br> around the stumps"<br><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://dixienc.us/" target="_blank">
http://DixieNC.US</a><br></font></div></span>
<blockquote style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"><span class="q">
<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial"><b>From:</b> <a title="rcmaster199@aol.com" onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:rcmaster199@aol.com" target="_blank">rcmaster199@aol.com</a>
</div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="nsrca-discussion@lists.nsrca.org" onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org
</a> </div>
<div style="FONT: 10pt arial"><b>Sent:</b> Sunday, September 23, 2007 7:02 AM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> Re: [NSRCA-discussion] Elevator setup with anhedral stabs</div>
<div><br> </div>
<div> </div>
<div>
<div><span style="DISPLAY: inline-block"></span>HMMMM.....The laser idea I think is a good one. I wonder how a pair of small pointer lasers, each taped onto an elevator half, could work. Turn them on and let them point at some kind of screen against a wall. A 17x24" piece of quadruled vellum might make a good screen. Accurate positioning of the lasers is critical but shouldn't be too bad for a real pattern animal. Haven't tried it myself tho, so take it with a big grain of salt.
</div>
<div> </div>
<div>Am planning anhedral on my new design so I will need a good technique too.</div>
<div> </div>
<div>MattK</div>
<div><br> </div>
<div><br> </div>-----Original Message-----<br>From: Stuart Chale <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:schale@optonline.net" target="_blank">schale@optonline.net</a>><br>To: 'NSRCA Mailing List' <
<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a>><br>Sent: Fri, Sep 21 11:57 AM<br>Subject: Re: [NSRCA-discussion] Elevator setup with anhedral stabs
<br><br>
<div style="FONT-SIZE: 12px; MARGIN: 0px; COLOR: #000; FONT-FAMILY: Tahoma, Verdana, Arial, Sans-Serif; BACKGROUND-COLOR: #fff"><pre style="FONT-SIZE: 9pt"><tt>I think a laser setup could work pretty well if the pivot is accurate. I will probably try the measuring from the table to the rods first and see if I can pick up a cross hair laser next trip to Home Depot or similar. Thanks for the idea guys -----Original Message----- From:
<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> [<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion-bounces@lists.nsrca.org?" target="_blank">
mailto:nsrca-discussion-bounces@lists.nsrca.org</a>] On Behalf Of Steve Byrum Sent: Friday, September 21, 2007 10:12 AM To: 'NSRCA Mailing List' Subject: Re: [NSRCA-discussion] Elevator setup with anhedral stabs Guys Walmart has a $10 level that does as Ed suggests. I use it to set up Curares for SPA. Level the ele!
vator at neutral with the laser on both ends of the elevator. Hold full up and elevate the laser. If it doesn't still hit both ends of the elevator, it's obvious which one is off. Same with down. Semi high tech and cheap. To elevate the laser, I use a scrap of 2-1/2 wide aileron stock as a wedge. Slide it under to elevate. Pull it out to depress. Steve Byrum (256)737-9828 -----Original Message----- From:
<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> [<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion-bounces@lists.nsrca.org?" target="_blank">
mailto:nsrca-discussion-bounces@lists.nsrca.org</a>] On Behalf Of Ed Alt Sent: Friday, September 21, 2007 8:51 AM To: 'NSRCA Mailing List' Subject: Re: [NSRCA-discussion] Elevator setup with anhedral stabs Hi Stu: Bushnell makes a nifty laser level that can be set for a point, a horizontal line or a crosshair. I've used the crosshair for this type of adjustment with a flat stab !
and it works great. I suspect that it might also work well if you us
e it in a "scanning mode". What I normally do is just line up the vertical line on the rudder post, get the stab set and then do the elevators. The level has a magnetic base and you can pivot it up & down on that base. Now, for the anhedral stab it might work well if you sight it at the root, then adjust up or down to site a mid point, then again at the tips of the elevators. Seems plausible anyway. Radio Shack was dumping these at half price for a while, not sure if you can still find them there. Ed -----Original Message----- From:
<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> [<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nsrca-discussion-bounces@lists.nsrca.org?" target="_blank">
mailto:nsrca-discussion-bounces@lists.nsrca.org</a>] On Behalf Of Stuart Chale Sent: Friday, September 21, 2007 8:24 AM To: 'NSRCA Mailing List' Subject: Re: [NSRCA-discussion] Elevator setup with anhedral stabs I tried this question on RCU and didn't !
get any great answers so I thought I would try here. Does anyone have a good method for comparing the throw of both elevator halves on anhedral stabs? With a regular stab I use a 15 inch piece of 1/8 carbon fiber rod on each elevator meeting behind the rudder and compare their track with movement of the elevator stick. This is much more accurate to me, than clip on throw meters or ruler measurements. With anhedral stabs the two rods will separate as you give up elevator and come together and cross with down elevator. I guess you can measure the height of the end of the rod from the table at different positions but does anyone have a better method? Thanks, Stuart _______________________________________________ NSRCA-discussion mailing list
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