This page contains links to software of various kinds: applications,applets and shareware directories. The downloadable software may be freeware,shareware or demo versions of professional software, that may be helpfull foranalysis and designwork.
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Combustion and propellant simulation tools: PROPEP - Author: unknown - click to download (193k Platform: DOS)Expanded data file (pepcoded.daf) for the PROPEP program. Includes entries for Dextrose, Sorbitol, Charcoal, Asphalt, and Paraffin. (23k) From Richard Nakka's Experimental Rocketry Web Site Propep is a combustion simulation software, that estimates the specific impulse and thermodynamical constants for a propellant composition. Ingredients are selected from a list to which new items can be added. Important: Read the 'READ.ME' file for instructions on directory settings. PROPEP runs only if the default numbering style is 'american' GUIPEP - Author: Arthur J. Lekstutis - click to download (557k Platform: 16 bit Windows)- or visit the 'Landshark' homepage GUIPEP is a windows shell for PROPEP, that makes PROPEP much easier to use. NOTE - this program is not for stand alone use - it requires PROPEP installed in the same directory to run. GDL_Propep - Author: James Lanier - click to download (1.2M Platform: 32 bit Windows)- or visit the Gas Dynamics Lab homepage GDL_Propep is functionally equivalent to the GUIPEP/PROPEP software, however this version comes complete with installation software and does not require additional downloads. EQS4WIN Chemical Equilibrium Software Mathtrek Systems Homepage - with free full working demo of the EQS4WIN thermodynamic equilibrium computation software CHEMIX - Author: unknown - click to download (0.8M Platform: 32 bit Windows)- or visit the Chemix homepage CHEMIX was developed with the goal of boost chemical calculating efficiency. It works as well as a help tool guiding students through important topics in the field of chemistry. CHEMEQ - Author: Richard Nakka - click to download (41k Platform: DOS)- or visit Richard Nakka's Experimental Rocketry Page on the World Wide Web Calculates the chemical equilibrium concentrations of reaction products in a C/H/O/N (carbon, hydrogen, oxygen & nitrogen) system, at specified temperature and pressure. GDP Demo - Author: AED - click to download (570kk Platform: DOS)- or visit the AED Home Page The Grain Design Programs (GDP) are software packages to design rocket motors and other gas generating devices. Capable of calculating ALL 2-D designs, like star, moonburner, bates, etc. Grains which can not be treated analytically, are treated graphically.This demo is fully functional. Note however that all output results are multiplied by a random factor varying between 0.1 and 10 !! Impulse Roc - Author: James Myres - click to download (Platform: 16 bit Windows). Impulse Roc is a AP solid motor design program for the Windows environment.

Trajectory simulation: FLIGHT3 - Author: Mark Veltena - click to download (Platform: DOS) or visit the FLIGHT3 page FLIGHT3 is a Dutch trajectory simulation software. Define Your multistage rocket and this program predicts its trajectory. VRM101 - Author: Jørgen Franck - click to download (1.9M Platform: 16 bit Windows) or visit the DARK download page Vertical Rocket Motion, Version 1.01. This program computes the vertical trajectory of a rocket at subsonic speeds. Plotting of various results are also possible. SOAR - Author: Richard Nakka - click to download (187k Platform: DOS)- or visit Richard Nakka's Experimental Rocketry Page on the World Wide Web Model Rocket data files for SOAR - click to download (15k) Data files of the B-200 & C-400 Amateur Rocket Engines for SOAR - click to download (1k) This program predicts the flight performance of a rocket. It calculates parameters such as altitude, velocity, acceleration, drag force, Mach number, and is capable of handling multistage rockets, as well. Meant to be versatile and user friendly, it can handle supersonic rockets with a flight ceiling to 100,000 feet. as easily as low altitude model rockets with commercial engines. Launch - Author: Hans Olaf Toft - click to download (446k Platform: 32 bit Windows) or visit the DARK download page 2D (3D) Rocket trajectory and impact calculation, Version 2.0A. Simulates rockets with up to 5 stages. User defineable or built in Mach dependent drag coefficient. User defineable or built in thrust curves. User defineable overlay maps with import facilities for GPS and other geographical data. Extensive plotting facilities of trajectory data. Space CAD - the easy model rocket software. (Platform: 32 bit Windows) SpaceCAD does stability and altitude predictions for model rockets. It has buildt in parachute designer and supports WRASP file formats for convinience. Balloon Track for Windows95 - Author: Rick von Glahn. This is a trajectory simulation for high altitude balloons, that predicts also the ground track and landing position. Satellite Tool Kit 4.0 (STK) Satellite Tool Kit (STK)® 4.0 is the core in a suite of analysis software tools that addresses all phases of a space systems life cycle, from policy development and design to launch and operations. Based on simple user inputs, STK generates paths for a variety of space- and ground-based objects, such as satellites, ships, aircraft and land vehicles. STK provides animation capabilities and a two-dimensional map background for visualizing the path of these vehicles over time.

Aerodynamics and stability prediction tools: ROCDRAG - Author: John S. Kallend - click to download (58k Platform: DOS)or visit John Kallend'srocket page A Program to Estimate Drag Coefficient and Simulate Performance for Simple Model Rockets. Aerolab - Author: Hans Olaf Toft - click to download (389k Platform: 32 bit Windows) or visit the DARK download page Aerolab estimates Drag, Lift and Center of Pressure for rockets flying at velocities up to 8 Mach. It also estimates the rockets Center of Gravity and Moments of Inertia and performs stability analysis within the entire velocity range. VCP - Author: Gary Crowell - click to download (618k Platform: 16 bit Windows)or visit the VCP page VCP is a Barrowman CP/CG stability calculator for Windows using spreadsheet style operation for easy looks at what-if tradeoffs when designing rockets. Graphic display ensures data entry accuracy. Super Numerical Airfoil Creation Kit (SNACK) Author: DreeseCode Software Company SNACK is an airfoil creation/design and analysis software package that will make your life easier; especially if you're building a kitplane, building a radio controlled airplane, doing a science-fair project on airfoils/wings, or if you're studying Computational Fluid Dynamics. MicroTunnel. Author: MicroCFD MicroTunnel analyzes 2-D subsonic, transonic, and supersonic flow (Mach 0.1 to 3.0) over multi-element configurations on a raster type Cartesian mesh. Flow visualization is provided through color contour plots of local Mach number, density, pressure, and temperature, including streamline plots. Shock waves are easily captured!

Flight recorder tools: R-DAS user interface - Author: AED - click to download (700k 32 bit Windows)- or visit the AED Electronics home page The user software for the R-DAS flight computer. Setup and operate Your R-DAS unit, or read, plot and export R-DAS data files.

Mechanical design tools: Tera Analysis Quickfield support site. Full working free version: Student's QuickField (2.8M Platform: 32 bit windows) QuickField is a very efficient Finite Element Analysis package for electromagnetic, thermal, and stress design simulation.

To install it on your Microsoft Windows based system, do the following: Download it from HERE (544K). Uncompress on the hard disk of your machine using PKUNZIP, or something similar. Execute the setup program (named GUIPEP.EXE) Install GUIPEP to the same subdirectory that you have previously installed PROPEP.

Electronics design tools: Visit the IVEX WinBoard and WinDraft demo PCB layout and Schematics tools. Demo is limited to 100pins. Protel EDA suite 30 days free demo (Platform: 32bit Windows) Complete EDA suite with PCB layout, Schematics, PLD tools and mixed signal simulation. This demo is available in separate blocks or as a complete package. Visit the Protel WEB site for details. Orcad PSPICE DesignLab DEMO (Unknown size (large) Platform: 32bit Windows) Electronic circuitry simulation, with schematics entry, PCB design and FPGA tools. Visit the Orcad WEB site for other OrCad product DEMO's. Orcad eCapture Electronic circuitry schematics entry. RFSim99 RFSim99 is a linear frequency domain circuit simulator geared towards quick and easy simulation of radio frequency circuits. MultiSTRIP The MultiSTRIP program is written to analyze and design multilayered arbitrary shaped microstrip antennas on multiple dielectric layers.

GPS and Navigation tools: Map Maker Basic - click to download (1.4M Platform: 32 bit windows)or visit the Map Maker home page You can produce professional maps easily from existing or imported data with a few hours practice... Hard copy from the program was excellent, with very fast output from a budget laser printer... Excellent for map making, editing or inputting vector data and GIS analysis. Map Maker GPS utility - click to download (93k Platform: 32 bit windows)or visit the Map Maker home page This program is used to collect data direct from GPS devices via the COM port of a laptop and save it in a Map Maker combatible file format. The program is compatible with the common GPS standards (ie NMEA 182, NMEA 183 version 1.5, NMEA 183 version 2.0, and Trimble's SMLTU) OziExplorer - Author: Des Newman OziExplorer is a Software which will work with Magellan, Garmin, Lowrance and Eagle GPS receivers for the upload/download of data and most brand of GPS receivers for on screen tracking of position (Moving Map). AGIS trial version - click to download (3.6M Platform: 32 bit windows)or visit the AGIS Homepage AGIS is a user friendly mapping and simple geographic information system for Microsoft Windows 95, 98 and Windows NT. GPS TrackMaker GPS communication and map software for PC. Author Odilon Ferreira. Waypoint+ (main program) - Author Brent Hildebrand - click to download (1.1M Platform: 32 bit windows) and Waypoint+ (Overlay) - click to download (0.7M Platform: 32 bit windows)or visit the Waypoint+ HomePage. Upload and download Routes, Tracks, and Waypoints from a Garmin* GPS to a PC, using the Garmin* proprietary communication protocol. GARtrip - author Heinrich Pfeifer GARtrip is a Win-PC database program for users of a Garmin GPS receiver. Up- and download of tracks, routes and waypoints.

File Viewing and creation tools:

Ghostscript Postscript viewing and printing (on non ps printers) utility

DocView Multipage TIFF format viewer

OttoPDF OttoPDF is a freeware program that converts AutoCAD drawing files into Adobe Acrobat PDF files without using AutoCAD.

OttoTiff OttoTiff is a freeware program that converts AutoCAD drawing files into Tiff Group IV Image files without using AutoCAD.

Autodesk WHIP! CAD viewer plugin for internet browsers. WHIP! uses the drawing web format (DWF), a lightweight vector file format that preserves the security and precision of original DWG files, while ensuring the speedy display of drawings.

General purpose tools:

CelesTrak WWW Software for tracking of celestial bodies by Dr TS Kelso.

Scilab Scilab: a FREE CACSD Package by INRIA.

Ucalc - Author Daniel Corbier - click to download (1.8M Platform: 32 bit windows)or visit the Ucalc page Universal Calculator. User defined functions. Plotting in 2D and 3D.

Trajectory simulation:

RASP - click to download (123k - format: zipped file).and click here for instructions Vertical flight simulation program, originating in the venerable 1989 version of RASP. Upgraded to do batch mode and for slightly better supersonic simulation by Konrad Hambrick .

Mkcurve - click to download (59k - format: zipped file).and click here for instructions Mkcurve is a thrust curve scaling program. It will accept input in any units ( say, calibrated engineering units from a test stand or maybe millimeters eyeballed from a marketing brochure ) and given a time-scale and a calibration gain factor and offset and it will produce a RASP-compatible thrust curve. By Konrad Hambrick .

Cluster - click to download (34k - format: zipped file).and click here for instructions Cluster produces pseudo RASP-compatible thrust curves from a number of Motor Thrust Curves so that one can 'fly' airstarts in RASP, RockSim, etc., none of which can do airstarts out of the box. By Konrad Hambrick .

Rocketsim The rocket simulation project. Author Antoine Lefebvre.

Aerodynamics and stability prediction tools:

Profiler - click to download (113k - format: zipped file).and click here for instructions Profiler is a static / dynamic stability calculator that also produces output and a control file so that gnuplot can draw a picture of the rocket. By Konrad Hambrick .

Palt - click to download (47k - format: zipped file).and click here for instructions Palt computes Pressure at Altitude or Altitude at Pressure according to the ISA up to 11,000 M. By Konrad Hambrick .

Mechanical design tools:

QCad QCad is a free open-source 2D CAD system for Linux. QCad uses DXF as its standard file format. You can load, merge and save DXF files. Further it offers support for the HPGL and for the DGN format. QCad is awailable for several platforms, including Linux, Solaris, Free BSD and also Windows.

Electronics design tools:

ViPEC ViPEC is a powerful tool for the analysis of high frequency, linear electrical networks. It takes a text based description of the electrical network and an analysis is performed in the frequency domain. The output is in the form of 2-port parameters (S, Y or Z) with results presented on a user defined grid and Smithchart. ViPEC is awailable for several platforms, including Linux, Solaris and also Windows.

gEDA The gEDA project is working on producing a full GPL'd suite of Electronic Design Automation tools. These tools are used for electrical circuit design, simulation, prototyping, and production. The gEDA project was started because of the lack of free EDA tools for UNIX. The tools are being developed mainly on GNU/Linux machines, but considerable effort is being made to make sure that gEDA runs on other UNIX variants.

Oregano Oregano is an application for schematic capture and simulation of electrical circuits.

XRoadMaker XRoadMaker is a gnome printed circuit board designer.

PCB pcb is free software for making printed circuit board layouts. It has many features and is capable of professional-quality output.Author: Thomas Nau.

GNUPIC The GNUPIC pages comprise a unique collection of free development software for Microcontrollers. The GNUPIC pages are no longer restricted to Microchip Microcontrollers. Free software is available for all types of Microcontrollers.

Micro Tools for Linux Micro tools is a set of development tools for Atmel AVR micro-controllers.

GPS and Navigation tools:

Mayko map Home Page Mayko map lets you display digitized maps. A connected GPS, will plot your position on the map. This program is for Linux, a UNIX like operating system very popular with a broad spectrum of users. We do support other Unix platforms too. Get your Personal Edition of Mayko map for free!

General purpose tools:

Regress - click to download (6k - format: zipped file).and click here for instructions Regress is a simple least-squares calculator that includes the ablilty to process arbitrary ranges over X and Y and can apply several linear functions to X or Y or Both. It is another new awk script so it can do good things with text files containing tabular numeric data. By Konrad Hambrick .

Trajectory simulation:

CompuRoc - Rocket Flight Simulator for the Macintosh Simply put, CompuRoc is a Macintosh application that does flight simulation for rocketry in model rocket through high power applications.

GPS and Navigation tools:

GPSy Home Page GPSy® is a sophisticated Macintosh GPS communications and GIS mapping program. GPSy connects your Macintosh to a broad range of Global Positioning System (GPS) navigational units and has advanced mapping, logging, and data transfer features. GPSy has extensive support for USGS DRG topo maps, Internet DGPS-IP servers, GPSyLinks to Internet Map Servers, StreetAtlas 4, and IPC's MapFan II, as well as user-scanned maps, Magellan and Lowrance/Eagle data transfer protocols, Sony IPS protocol, Rockwell Zodiac/Tripmate binary protocol support, Trimble TSIP support and much more.

Trajectory simulation tools:

Pocket Rocket - Author: Jay Ward - click to download (50k)- or visit the Pocket Rocket homepage. NOTE: Pocket Rocket requires cbasPad basic interpreter to run. Trajectory calculation for model rockets. Motor database included.

GPS and Navigation tools:

GPilotS - Author: C. Claveleira Transfer tracks, routes and waypoints between a Garmin GPS device and a Palm. Then transfer tracks, routs and waypoints between the Palm and Your PC.

General purpose tools:

PocketSat - Author: Jim Berry - click to download (200k)- or visit the PocketSat homepage PocketSat is an application that allows you to predict when satellites will be visible in your location, or to identify one that you happen to have seen.

Element (trial version) - Author: Mindgear - click to download (24k)- or visit the Element homepage Element™ displays the periodic table just the way you would like to see it. The entire periodic table is shown on a single screen, and selected information is displayed in a scroll display at the bottom of the screen.

Tide Tool - Author: Walt Bilofsky Tide Computation Software for Palm Handhelds.

Combustion and propellant simulation tools:

Norton Installation Files

Nozzle/Fuel Consumption Calculator. This is a Java applet that calculates rocket nozzle parameters and fuel flow rates based on idealized theoretical formula. By Arthur J. Lekstutis

Cpropep-Web - chemical equilibria of an ideal gas with pure solids and liquids. By Antoine Lefebvre

SCORES Web-based Liquid Rocket Engine Analysis Tool

Nozzle Calculator. This page allows you to calculate the nozzle size. Note that it is a best estimate . By John Bolene

Chemical Equilibrium Calculation. This spreadsheet will calculate the chemical equilibrium state of a gas mixture, subject to necessary constraints on two intrinsic variables. The calculation invokes STANJAN to minimize the Gibbs free energy of the user-supplied gas mixture. From Colorado State University.

Trajectory simulation tools:

ROSE A Rocket Optimization and Simulation Environment .

Model Rocket Altitude Predictor Interactive JAVA altitude calculator for model rockets by Mark Sullivan

Aerodynamics and stability prediction tools:

Standard Atmosphere Computations. Properties related to the 1976 standard atmosphere up to 230,000 ft. By Ilan Kroo

Conversion factors Process Associates of America

Standard Atmosphere Computations.

Standard Atmosphere Computations. This form uses JavaScript to compute properties related to the 1976 standard atmosphere up to 230,000 ft.

Standard Atmosphere Computations. 1976 standard atmosphere. A standalone version written in JAVA for use up to 1000km. From SPL

Ideal Flow Machine JAVA applet illustrating simple user defined ideal flow.

Compressible Aerodynamics Calculator in Javascript by William J. Devenport, Department of Aerospace and Ocean Engineering, Virginia Tech.

The Java Virtual Wind Tunnel. A Two Dimensional Computational Fluid Dynamics Simulation by David Oh / Computational Aerospace Sciences Laboratory, MIT

Java Potential Flow Applet. Michigan Aero Instructional Software Project by Prof. Kenneth Powell. This applet is a potential-flow laboratory; a student can build up incompressible, irrotational flows by superposition of a free-stream velocity and various singular solutions to Laplace's equation

NACA 4 Digits Series. Generate NACA 4 Digits Airfoil online. Java Applet by Jens Trapp and Robert Zores, Institute of Fluid Mechanics at DLR

Wing Analysis JAVA Applet

Unit Conversion Tools:

Digital Generation Unit Converter

Convert-me Interactive Units Converter

MegaConverter

GPS and Navigation tools:

Great Circle Calculator. Compute true course and distance between points. Compute lat/lon given radial and distance from a known point. By Ed Williams

General purpose tools:

Simple Least Squares Data Fitting Applet Linear, Quadratic and Cubic least squares curvefit applet by Bryan Lewis.

J-Track 3D. A 3D Satellite Tracking applet - Very Cool! - by NASA

J-Pass Calculates when a satellite is visible at your location: - by NASA

Shuttle Location Applet that tracks the shuttle - when in orbit: - by NASA

Combustion and propellant simulation tools:

Igniter - Author: Richard Nakka - click to download (Excell spreadsheet)- or visit Richard Nakka's Experimental Rocketry Page on the World Wide Web This is an MS EXCEL spreadsheet that may be used to estimate the chamber pressure that occurs in a rocket motor due to combustion of a pyrotechnic igniter. Use of a properly sized pyro igniter is important for efficient rocket motor design. The motor should reach full operating pressure rapidly without wasting propellant (and thereby reducing Isp). As well, it is important to avoid overpressurization. Although tailored for black powder igniters, this spreadsheet may be used for other pyrotechnic mixtures, as well.

Coreburner Spreadsheet- click to download (Excell format) - Author: James E. Lanier. or visit the James E. Lanier Gas Dynamics Lab Web site Coreburner simulation in a spreadsheet. User defined dimensions and burn law. Handles multiple propellant segments.

Hybrid design spreadsheet - click to download (Excell format) - Author: Paul Kelly. or visit Paul Kelly's rocket page. This Hybrid design spreadsheet will get you started designing monocoque (single tube) hybrid motors using a variety of fuels. I used it to design most of the motors on this page and it can be pressed into service for a whole heap of things.

Trajectory simulation:

ROCKET48.BAS - Author: Mark Goll Spacelines Multistage Rocket Simulation Program. Basic Sourcecode.

Aerodynamics and stability prediction tools:

Fortran (90) coding of Atmosphere The 1976 Standard Atmosphere. Source code for inclusion in your own aeronautical studies.

Turbulent Skin Friction Calculation Fortran (90) Source code for calculation of turbulent skin friction by the T-prime method.

Parachute design tools:

Chute.bas A simple basic program that allows you to calculate the dimentions of a parachute by Esben Collstrup.

Mechanical design tools:

Casing design Spreadsheet - Author: Richard Nakka - click to download (Platform: Excell spreadsheet 61K) or visit Richard Nakka's Amateur Rocketry Page on the World Wide Web This is an MS EXCELL spreadsheet that is used to determine the Design Pressure and Burst Pressure of a solid rocket motor casing. Also determines the elastic deformation of the casing under pressure.

Guinep Proper Installation Files Folder

Spread Spectrum Scene FREE Public Domain Software - Electronics, CAD, Utilities

aRocket Web - Downloads Page Comprehensive rocketry software archive. By Ray Calkins.

Free Mechanical Engineering Software

Avg Free Installation Files

Dark Rockets (Experimental Rocketry)