Welcome to my Home Made Programs Page.
Here you will find a small selection of the programs that I have written.
Currently these are for Win95 PC's but I will soon put some DOS programs up.
 
Although the programs were originally not intended to be made public, they are simple enough not to mess around with your PC, be easy on the eye and robust enough to take a good clicking.
 
 
Atmospheric Data: Using 'The International Standard Atmosphere' data the program calculates the temperature, pressure, density, viscosity and g as you vary the altitude. Handy for a quick reference, saves getting the data book out. (Atmosphere.exe) For Win95, download and double click to run program. Size 271KB
Balloon: See how a theoretical balloon would behave. Select or enter details about gondola weight, envelope fabric, lifting gas, then release the balloon at any altitude. (Balloon.exe) For Win95, download and double click to run program. Size 255KB
Electric Propeller: If you would like to match an electric motor & battery with an model aircraft propeller, geared /or not, this program simulates the system output: Prop thrust, torque and motor current drawn. Several files in a self extracting file (Propcalc.exe - after expansion) For Win95, download self extracting file into a new folder & double click. Size 263KB
GPS Manager: A program for a 'Magellan Tracker' GPS Unit. You can upload and download waypoints, reads NMEA information and show it in graphical form. Click on a scanned map to create waypoints, see your position on a scanned map. The program has a help file. Designed for a my small screen laptop (640x480). Five files in a self extracting file. (GPSManager.exe - after expansion) For Win95, download self extracting file into a new folder & double click. Size 533KB
 
Want information on any programs e-mail: stagbeetle@stagbeetle.plus.com I'd be delighted.
 
I will try to make my programs more interesting in the future.

The motivation behind many of these programs was a personal attempt to understand a little more about particular aspects of aerodynamics.
I do sprinkle assumptions and simplifications throughout these programs, and even attempt an occasional educated guess, However the maths behind some of these programs will be big and chunky, even if the front-end looks simple. I would be happy to go into details, that is if anybody would be interested.

Coming Soon ...?

The Sycamore Seed - Build a large scale seed, use a program to test the theory. next project
Free Fall - Propeller parachutes. next project
AutoGyros - see how they work. Design and simulate an autogyro flight.  
Splashdown - Simulated rocket launch, orbit and re-entry. starting project
Crater - Simulated meteor/comet entering atmosphere, calculates energy lost to atmosphere and approximate burn-up, impact speed, or crater size on impact with the surface. nearly complete.
Fish tailfin - Calculates the thrust & drag produced in water nearly complete
Solar position - An easier program, many similar programs around , but I'll do my own thanks.  
Home