Downloads

Latest Release

The latest available version of RPA Standard Edition is 1.2.6.3.
The latest available version of RPA Lite Edition is 1.2.5.2.

Description		Standard Edition Pricing and Licensing	Lite Edition
	MS Windows (x86), Installer. Includes redistributable runtime libraries for MS VC++	rpa-1.2.6-standard-win32-r.exe 12.9 MB 15-day fully functional free trial	rpa-1.2.5-lite-win32-r.exe 12.4 MB
	MS Windows (x86-64), Installer. Includes redistributable runtime libraries for MS VC++	rpa-1.2.6-standard-win64-r.exe 14.4 MB 15-day fully functional free trial	rpa-1.2.5-lite-win64-r.exe 13.8 MB
	MS Windows (x86), Installer. Does not include redistributable runtime libraries for MS VC++	rpa-1.2.6-standard-win32.exe 8.9 MB 15-day fully functional free trial	rpa-1.2.5-lite-win32.exe 8.3 MB
	MS Windows (x86-64), Installer. Does not include redistributable runtime libraries for MS VC++	rpa-1.2.6-standard-win64.exe 9.6 MB 15-day fully functional free trial	rpa-1.2.5-lite-win64.exe 9.0 MB
	MS Windows (x86), ZIP. Does not include redistributable runtime libraries for MS VC+. Does not require administrator rights and installation.	rpa-1.2.6-standard-win32.zip 10.4 MB 15-day fully functional free trial	rpa-1.2.5-lite-win32.zip 9.6 MB
	MS Windows (x86-64), ZIP. Does not include redistributable runtime libraries for MS VC+. Does not require administrator rights and installation.	rpa-1.2.6-standard-win64.zip 11.4 MB 15-day fully functional free trial	rpa-1.2.5-lite-win64.zip 10.5 MB
	Mac OS X 10.5 or higher (Intel x86 or x86-64), Installer. Does not include redistributable libraries for Qt.	rpa-1.2.6-standard.pkg 4.5 MB 15-day fully functional free trial	rpa-1.2.5-lite.pkg 3.6 MB
	Mac OS X 10.5 or higher (Intel x86 or x86-64), Installer. Includes redistributable libraries for Qt	rpa-1.2.6-standard-qt.pkg 18.2 MB 15-day fully functional free trial	rpa-1.2.5-lite-qt.pkg 15.4 MB
	Mac OS X 10.5 or higher (Intel x86 or x86-64), Bundle, ZIP. Includes redistributable libraries for Qt	rpa-1.2.6-standard-qt-bundle.zip 18.9 MB 15-day fully functional free trial	rpa-1.2.5-lite-qt-bundle.zip 16.1 MB
	Linux x86-64. tar.gz Includes redistributable libraries.	rpa-1.2.6-standard-x86-64-r.tar.gz 12.8 MB 15-day fully functional free trial	rpa-1.2.5-lite-x86-64-r.tar.gz 11.5 MB
	Linux x86-64. tar.gz Does not include redistributable libraries.	rpa-1.2.6-standard-x86-64.tar.gz 5.9 MB 15-day fully functional free trial	rpa-1.2.5-lite-x86-64.tar.gz 5.6 MB
	Linux x86. tar.gz Includes redistributable libraries.	rpa-1.2.6-standard-i386-r.tar.gz 12.9 MB 15-day fully functional free trial	rpa-1.2.5-lite-i386-r.tar.gz 11.6 MB
	Linux x86. tar.gz Does not include redistributable libraries.	rpa-1.2.6-standard-i386.tar.gz 5.9 MB 15-day fully functional free trial	rpa-1.2.5-lite-i386.tar.gz 5.5 MB

Installation instructions

See User Manual: Installation.

Note: RPA for Windows depends on MS VC++ 2008 SP1 runtime libraries. If your computer does not have it installed, please choose the installer that includes all required components (rpa-1.2.6-standard-win32-r.exe or rpa-1.2.6-standard-win64-r.exe), or download and install redistributable runtime components from Microsoft download center: for x86 (download size 4.0 MB); for x64 (download size 4.7 MB).

Note: in order to install RPA for Windows from installation executable file you must have administrator rights. If you don't have administrative rights, you can still install the program from ZIP package.

Change Log

RPA Standard Edition v.1.2.6.3 & RPA Lite Edition v.1.2.5.2

• fixed mistake in definition of nozzle exit condition in throttled performance analysis
• fixed mistake in calculation of thrust in throttled performance analysis
• improved thrust level discretization in throttled performance analysis
• improved pressure discretization in altitude performance analysis

RPA v.1.2.6.2

Standard Edition

• improved algorithm for calculation of sonic velocity at nozzle throat section for reaction products with condensed phase
• added user manual in PDF format

RPA v.1.2.6.1

Standard Edition

• mistake that makes impossible the modifying the fuel mass fraction on screen "Propellant Specification" is fixed

RPA v.1.2.6

Standard Edition

• calculation of additional nozzle stations
• calculated thrust is added to altitude performance table
• calculated thrust (at SL, opt and vac conditions) is added to throttled performance table
• in both Nested Analysis and Propellant Analysis tools, any of calculated parameters (Is, Tc, c*, Cf) can be plotted on diagram "parameter vs. O/F ratio"
• improved calculation of estimated delivered performance

RPA v.1.2.5

Standard Edition

• fixed mistake in calculation of thermal transport properties for off-optimum component ratios
• fixed mistake in calculation of nozzle exit condition for reaction products with "liqud-solid" phase transition

Lite Edition

Note that RPA Lite Edition v.v.1.2.2 - 1.2.4 have never been released.

• fixed mistake in calculation of nozzle exit condition for reaction products with "liqud-solid" phase transition
• improved filter functionality in species dialog window (ported from RPA SE 1.2.4)

RPA v.1.2.4

Standard Edition

• added export of nozzle contour to ASCII file
• improved filter functionality in species dialog window

RPA v.1.2.3

Standard Edition

• added possibility to define combustion chamber length by either L* or L'
• added calculation of estimated delivered altitude performance
• added calculation of estimated delivered performance of throttled engine

RPA v.1.2.2

Standard Edition

• added possibility to define initial parabola angle for paraboloc nozzles
• fixed mistake in chamber sizing module that allowed definition of L* in SI units only ignoring other selected units (in, ft, mm)
• fixed mistake in parabolic nozzle calculation for nozzles with low area ratio Ae/At

RPA v.1.2.1

Standard Edition

• calculation of thermal transport properties
• fixed mistake that caused program crash when loading configuration file with defined diameter of nozzle throat

Standard and Lite Edition

• improved performance estimation for solid propellants
• fixed mistake in calculation of sonic velocity at nozzle throat section for reaction products with condensed phase

RPA v.1.2.0

Standard Edition

• scripting module to solve user's own problems, extending standard capabilities of the program
• propellant analysis tool to evaluate different propellant compositions, with stepwise replacement of one component with another one
• determination of combustion chamber size for given thrust, propellant mass flow rate, or throat diameter
• designing parabolic or MOC TIC nozzle contour with capability to export the resulting contour to DXF file
• producing publication-quality plots (in raster or vector format)

Lite Edition

• Minor improvements and bug fixes.

See complete change log.

Last modified: December 31, 2011