Welcome to my link farm.  Nothing fancy.  Just a few links. 


Aviation stuff:


This page seems to have a lot of information about  Bernd Ewald's project to build a full scale Horten IV but, alas, most of it is in one of the many languages I can't read.  An English translation of one of Mr. Ewald's articles was published  in the winter 2001/2002 issue of the Vintage Glider Club News.

In the mid '90s  Ulrich Schäfer built a motor glider called " Aachen" .  Mr. Schäfer has expressed interest in building another flying wing .  Hopefully he will be able to continue with this project in the not too distant future.

The German word Nurflügel means "only wing" and that's exactly what you'll find on the Nurflügel  page,  historical information about, and pictures of all-wing and tailless aircraft.    You can read some more history of the Horten's in this Flight Journal article and in this  "Aérostories"  article.  After WW II Reimar Horten found himself an aeronautical engineer in a country without an aircraft industry.  To find work he, like many Germans in similar circumstances, immigrated to Argentina .  Here is an article about the Smithsonian's collection of Horten 'wings   and the  H 229 center section  in their collection.

 TWITT (The Wing Is The Thing) is  the largest collection of current flying wing info on the web.  Physically located in  southern California, they meet every other month and publish a newsletter with the goal of helping flying wing enthusiasts around the world share their project results and offer encouragement to one another.

BWB is an acronym that has become popular in the last 30 or so years .  McDonnell Douglas was working on one such design before they merged with Boeing.  Before the merger NASA was working on a 4,000 lb dynamically scaled model of the BWB called the X-48a but that was canceled for budgetary reasons. Later it re-emerged as the much smaller X-48b.

Al Bowers worked on the X48a before the cancellation and has since moved on to other responsibilities at NASA but he still talks about flying wings at every opportunity

If you're interested in models Andy MacDonald's Flying Wing Page is a good place to find inspiration.  Carlo Godel's page  was a wonderful source of plans for vintage models. Carlo is gone now but his web page can still be retrieved from the Wayback machine.

If you are interested in designing your own flying wing this page from Applied Aerodynamics: A Digital Textbook  provides some useful guidance.   You will also find some analysis software and lots of great modeling information on  Martin Hepperle's page.

Bill and Bunny Kuhlman  (aka B2) publish specialty books for aeromodelers.  Of particular interest to tailless designers are the  Panknin Twist Formula for calculating  linear twist for a swept flying wing and   Irv Culver's formula  for non-linear twist.  These formulae are in Appleworks and Excel format and can be converted to run in most spreadsheets by using the <Import> command on your software's <file> menu.  In addition to the web site they write a column for Radio Controlled Soaring Digest called  "On The 'Wing" and many of those articles also eventually become available as PDF files.

This page by Matthieu Scherrer shows a relatively simple formula for generating a non-linear twist distribution of the Horten style and a model he used it on.  There is another, somewhat more elaborate (read "intimidating"), formula for calculating sinn twist.  However, I've been told that this is only a mathematical approximation of the method Dr. Horten used to get a bell shaped lift distribution and doesn't quite produce the same result but it's real close.  To see the result of this formula have a look at Mike Allen's page

I've been working on an introductory page on Vortex lift , it's not finished yet but you're welcome to look at it (spelling and grammatical errors included) 

Here are some links to multi-element airfoils


Operating system stuff:

The Linux Resources home page

The Linux documentation project
 
Dell is selling notebooks  that are supposed to be tough enough for teenagers, Woohoo!!!

The Linux Gazette. "One can not unite a community without a newspaper or journal of some kind"  

The Linux portal It used to be called “Linux links by Goob” I liked the old name. 

If you are looking for a Linux users group in your area, or want to start a user group, GLUE, Groups of Linux Users Everywhere, can help. 

Much of the operating system that is distributed with the Linux kernel is composed of software that comes from the GNU  project and the Free Software Foundation. 

Linux® is a registered trademark of Linus Torvalds 


Miscellaneous:

Sportpilot.org

Computer virus myths home page

About a third of the links on The Good page  are aviation related but the rest are fun and interesting too so I am listing it as miscellaneous. 
The James Randi Educational Foundation

The Jane Goodall Institute

Need to find out what time it is?  Try these.   In the United States  Everywhere else

  GeoClock  is a shareware program that can turn just about any old DOS or MSWindows box into a sun-clock with a wide selection of maps. 


Let's not take ourselves too seriously:

The UNIX haters handbook

Did you know that it's illegal, in some states, to carry an ice cream cone in your back pocket on Sunday?   It is also illegal to ride a horse in Colorado while under the influence alcohol.  Many other quirky ordinances are listed at  dumblaws.com .  Personally, I would never consider riding a drunk horse :^) 

  Hail Aris! 

The Frank Zappa memorial barbecue  and other strange things 

Check out the amazing cyber camera


Norman Masters
 E-mail nmasters at acsol dot net

Created -- 2003-03-30
Last revised -- 2011-09-11

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