- Model Glider Design
A computer program for the design and analysis
of simple model gliders.
Copyright © 1996 - 2013 by Alan S. Estenson
Also see Aery FAQ's and
released! Download this new version using the link below.
Aery is an interactive program for the computer aided design
and analysis of simple model gliders. At any time, the design
may be analyzed for flying ability. Once a design is completed,
plans may be printed to allow construction of the glider out of
balsa wood and similar materials. Aery was intended for use by
groups or within the classroom to assist in teaching simple
aerodynamics, stability, and aircraft design. Aery uses the SI
(metric) system for all numbers and measurements. Aery runs on
PC's under the Windows operating system.
Aery may be freely distributed for
non-commercial use by individuals, non-profit groups, and
educational institutions. Aery may not be sold or used for
Aery is no longer in development! There are no plans to
modify, develop, extend or update this program in the future.
This software program (Aery and Aery32) is provided AS-IS
with no expressed or implied warranty or guarantee of any kind
including, but not limited to, the implied warranties of fitness
for a particular purpose. The author of Aery (Alan Estenson)
shall not be liable for any losses or damages of any kind
resulting from the use of this program. By downloading and/or
installing Aery, you are accepting and agreeing to these terms.
Click here to download
aery32.zip (1,939K) [newest version - recommended!]
Click here to download
aery.zip (577K) [ancient version - don't use it - just
here for archival purposes]
Requirements and Installation Instructions
Note that requirements and installation procedures differ
depending upon which version of Aery you have! Unless you’re
using an incredibly old computer, Aery32 is the recommended
Aery32 (32-bit program, updated in Visual Basic version
6 under Windows XP) [RECOMMENDED]
This updated version of Aery should work fine in Windows
95, 98, ME, NT, 2000, XP (32 or 64 bit), Vista (32 or 64
bit), 7 (32 or 64 bit) or 8.
(Visual Basic and Windows etc. are Copyright Microsoft
Corp, yadda yadda yadda.)
Aery32 has some enhancements, additions, and bug fixes
over the original version. See the Aery32 Revision Notes
1. Copy (or download) aery32.zip into a folder
somewhere on your computer.
2. Unzip aery32.zip within this folder.
3. Delete aery32.zip - you don't need it any more
unless you want to give it to a friend.
4. Run “setup.exe”
5. Follow the onscreen prompts to install Aery32.
6. Unless you choose otherwise, a shortcut for
Aery will be added to your Start menu. You may run
Aery32 using this shortcut. Aery32 will not automatically add a shortcut to your Windows desktop.
7. You may now delete the installation files that
came out of aery32.zip
8. If you need to uninstall Aery32, you may do so
through the Windows control panel.
Aery (ancient 16-bit program, originally written in
Visual Basic version 3.0 for Windows 3.1.)
This original version of Aery should work fine in Windows
3.1, 95, 98, ME, NT, 2000, XP (32 bit), Vista (32 bit) or 7
(32 bit). Since it is an old 16-bit program, it will NOT
work at all under the 64-bit versions of XP, Vista, Windows
7, or Windows 8. Unless you are using an ancient
computer, I strongly recommend that you use Aery32 (see
Installation Instructions (for Windows 95 and newer)
There is no automatic installation, so you'll need to
follow the following steps.
1. Create a program directory called aery
somewhere on your hard drive.
2. Copy (or download) aery.zip into this
3. Unzip aery.zip within this directory.
4. Delete aery.zip - you don't need it any more
unless you want to give it to a friend.
5. Right-click on aery.exe and choose "Send To /
Desktop (create shortcut)".
6. You'll now have a shortcut to Aery on your
desktop. To run Aery, just double-click on this
7. To uninstall Aery, just delete the entire Aery
directory and any shortcuts that you made.
Documentation & Instructions
(the following files are all included with Aery and Aery32
and will be located in the same folder as the program)
- Aery presentation slides.pdf (requires free Adobe
Acrobat reader) - an overview of the program and its
- Aery technical
paper.pdf (requires free Adobe Acrobat reader) - gives
background, instructions on how to use the program, and the
equations behind how it works
building instructions.pdf (requires free Adobe Acrobat
reader) – instructions on how to build a flyable glider
starting from the plans printed from Aery
- sample group memo.pdf (requires free Adobe Acrobat
- Several sample glider design files (.ae) and wood
configuration files (.cfg) for Aery
Start Aery or Aery32. Click on File/Open Design. Click OK
on the dialog box that pops up. Select TG1.AE (in Aery) or
“Sample glider - conventional design 1.ae” in Aery32 and click
OK. The current glider design is shown at the bottom of the
window. To adjust the design either left-click and drag on the
red bars to adjust the numbers, or right-click on a bar and a
little window will pop up to let you directly type in a number.
There are 5 tabs across the top of the window. The left four
tabs are used to design parts of your glider; the right-most tab
displays information from the analysis of your design.
To analyze your current design, click on Analyses/Will it
Fly? (or hit the F3 key) You'll now be told whether or not the
glider will fly, comments on what may be wrong, and suggestions
that may make the glider better. If you scroll down in the top
window, you can see all sorts of data about your glider design.
The Aery Evaluation Number is the program's opinion of your
design's "goodness". (Bigger numbers are better.)
For greater accuracy, you need to give Aery some details
about the wood that you will be using to build your gliders.
This is done through Configuration files; they may be opened,
edited, and saved through the File menu. These details are also
saved in each of your glider design files. Several sample
configuration files are provided.
When you select File/Print Plans, Aery will send 3 pages of
plans for the current glider design to the default Windows
printer. Aery32 will send 4 pages of plans.
For more info, see the PDF files included in the program
folder. Also, please see the Aery FAQ's
and Aery Tips on the web site.
Author Contact Info
Alan Estenson, estenson [at] mn-rocketry [dot] net
Feel free to send me bug reports, suggestions, or interesting
glider design files that you've created. I can't promise that
I'll ever again work on this program, but I will keep your
comments on file, just in case. Interesting new glider designs
may be made available for others to download from the Aery web
Aery is my version of the word "aerie" which is the word
immediately before "aero" in my dictionary.
I originally wrote this program as part of my project
requirements for a Master's of Science degree in Aerospace
Engineering from the University of Minnesota.
Please look at Aery FAQ's
and Aery Tips before emailing questions to
NO, there is NOT a technical support telephone
number for this program!
Aery32 Revision Notes (version 2.10)
Updated from an ancient programming
environment (Visual Basic 3.0) to one that's merely elderly
and obsolete (Visual Basic 6.0). Long file names may now be
used when saving Design and Configuration files.
Loading of Configuration files changed to
use standard common dialog box instead of custom screen.
Configuration files no longer have to be located in the same
directory as the program. (DEFAULT.CFG must stay in the same
directory as the program, or it will crash!)
A warning dialog now pops up when File/Print
Plans is selected from the menu. Four pages of plans are now
printed; the fourth page consists of the text from the
New option added under the Preferences menu,
"Only show full glider view". When this option is not
checked, all graphics screens are the same as the original
version of Aery. When this option is checked, a full
planform view of the glider is shown for all tabs except
Various little bugs squashed. A few little
coding enhancements added here and there.
Acknowledgements and Thanks
This program was inspired, in part, by the similar
program "Glider Design" by Mr. Michael Kamprath and
the Michigan Space Grant Consortium. However, Aery was a
completely independent programming effort.
Thanks to Gerald Holt at “Project Lead The Way”,
www.pltw.org, for encouraging me to create Aery32 so that
the program could continue to be used as schools switched to
64-bit versions of Windows. When I started creating this
program in 1995, I couldn’t have imagined that it would still be
in use some 18 years later! - Alan
Development of this program was originally supported by