[NSRCA-discussion] another servo spread sheet/graphics

[Amir Neshati]

Here's another one worth having....
 
http://members.cox.net/evdesign/pages/products.html
 
Look at "Linkage Design"....you can input pushrod distance from the servo &
flying surface, input moving surface dimensions, input airspeed and see how
much servo you need, surface travel versus servo travel, etc...with
graphics....Very powerful program. Also breaks down servo load through its
full travel range given the above inputs....
 
This report has been brought to you from sunny, 70 degrees, clear & calm Las
Vegas :-)
 
Amir
 
 

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From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Stuart Chale
Sent: Sunday, October 29, 2006 4:06 AM
To: 'NSRCA Mailing List'
Subject: Re: [NSRCA-discussion] Too quiet - more throw calculationspread
sheets



Definitely worth holding onto as well.

Thanks

 

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From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Keith Black
Sent: Sunday, October 29, 2006 1:05 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Too quiet - more throw calculation spread
sheets

 

Here's a throw calculator I put together a while back that does the
following:

 

#1: Calculate the required control horn length given the servo arm length,
desired max servo deflection and desired max control surface deflection. 

#2: Calculate the required servo arm length given the control horn length,
desired max servo deflection and desired max control surface deflection. 

#3: Calculate the control surface deflection given the servo arm length,
control horn length and max servo deflection in degrees. 

Keith Black

----- Original Message ----- 

From: Stuart Chale <mailto:schale at optonline.net>  

To: 'NSRCA Mailing List' <mailto:nsrca-discussion at lists.nsrca.org>  

Sent: Saturday, October 28, 2006 11:24 PM

Subject: [NSRCA-discussion] Too quiet

 

The list is just too quiet so I thought I would pass along this handy
utility.  It is an Excel spread sheet to convert surface deflection measured
with a ruler into degrees of deflection or visa versa.  It is modified from
one available on aeroperfect.com.  I added the ability to enter the
deflection angle to get a ruler measurement.  If you haven't seen the
product offered by this company it appears to be a quality digital
inclinometer (angle gauge) that can be used for setup.  A bit expensive but
I have been using the module from a Smart Level which works well but too
bulky to attach to a control surface.  Hanger 9 offers a similar device that
if it was made well would be just what the Dr. ordered, but its poor
construction in fit tolerances and repeatability make it all but useless.

 

Has anyone tried this product in actual practice?

 

Stuart

 

If the file does not go through with this message, you can get it here.
Just copy and paste into browser.

http://www.angelsonly.com/norm/modified_deflection_conversion.xls

 

 


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