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<DIV><FONT face=Arial>After reading this thread I checked out the new version of
the Aeroperfect meter. I had looked at the original - but there were several
drawbacks, mostly the weight. The new version appeared to have the needed
improvements, so I ordered one. Very quick delivery - ordered late Friday and it
arrived today. Nicely constructed and the software works very well. The clamps
provided for mounting to a control surface are a little aggressive for my liking
- but they're standard clamps an can be replaced or modified.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>I just took a quick look at the elevator halves on
Partners (dual servos). Raising the tail to get the surfaces near level
eliminates the need for the clamps for checking "zero matching". Simply place
the sensor on an elev half and click "zero" to zero the reading - move the
sensor to the other elev half (roughly the same place) and read the offset, if
any. Switching the sensor back & forth several times produced the same
readings - gotta love it when an instrument actually repeats! (I measured the
distance from the elev to the bench top with a digital caliper and confirmed
that the elevators were in the same place.) </FONT><FONT face=Arial>Clamping the
sensor to the surface allows one to measure up/down travels, again matching each
half. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>I've been setting elevator halves with a digital level (+-
0.1deg), this thing does +- 0.01deg and I saw an opportunity for a couple of
clicks of sub-trim to improve the zero. I usually measure total travel with
"Ivan's Magic Gadget", a short pointer and degree scale. The Aeroperfect
indicated that I'd gotten the matching right, but indicated a half degree or so
more travel than I noted with the pointers (reading between the
lines).</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>The unit has a built in "level" that can be assigned, as
well as a manual zero for comparisons. The software has a couple of nice
features, one can switch to large digits - should be great for us old guys or
working out doors where a LCD screen can be hard to read. There's also a
conversion algorithm for converting degrees to inches - simply input the width
of the measured surface.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>So a nice tool that appears, at least, as accurate as
other devices for the same purpose and it's very easy to use. Matt, thanks for
asking the question.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Earl</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=rcmaster199@aol.com
href="mailto:rcmaster199@aol.com">rcmaster199@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, October 17, 2008 10:44
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Angular
Measurements</DIV>
<DIV><BR></DIV>
<DIV>Thanks Stuart. Looked pretty good from the magazine article however, as
is often the case with such things, one has to account for the author's
experience (unknown in this case)</DIV>
<DIV> </DIV>
<DIV>MattK<SPAN contentEditable=false
style="DISPLAY: inline-block"></SPAN></DIV>
<DIV><BR></DIV>
<DIV><BR></DIV>-----Original Message-----<BR>From: Stuart Chale <<A
href="mailto:schale@optonline.net">schale@optonline.net</A>><BR>To: General
pattern discussion <<A
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>><BR>Sent:
Fri, 17 Oct 2008 10:02 am<BR>Subject: Re: [NSRCA-discussion] Angular
Measurements<BR><BR>
<DIV id=AOLMsgPart_0_19bf6205-288d-4365-801b-0a4b2c76a864
style="FONT-SIZE: 12px; MARGIN: 0px; COLOR: #000; FONT-FAMILY: Tahoma, Verdana, Arial, Sans-Serif; BACKGROUND-COLOR: #fff">I
didn't see any responses. I have the prior version of the aeroperfect meter.
Single axis and accurate to .05 degrees I think. I like it a lot. The most
accurate meter I have used for incidence and surface deflection. It is not a
level. Surfaces can be compared to each other or a table surface but it does
not check for being level. Readings are very repeatable. It would be nice if
the sensing unit were a little lighter when attaching to movable
surfaces. <BR>Mine has the display with it. Not sure it can hook up to a
laptop as the new one does. <BR> <BR>Stuart <BR> <BR><A
href="mailto:rcmaster199@aol.com">rcmaster199@aol.com</A> wrote: <BR>>
Has anyone used this gadget for measuring the various angles we
measure? <BR>> <BR>> <A
href="http://www.rcuniverse.com/magazine/article_display.cfm?article_id=1030"
target=_blank>http://www.rcuniverse.com/magazine/article_display.cfm?article_id=1030</A> <BR>> <BR>>
MattK <BR>> <BR>>
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