airCalc++ 3.9 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Office Tools, more precisely Calculators.
The most frequent installation filenames for the program include: AclPmain.exe, AclSrvDb.exe, Aircad.exe and airEditor.exe etc. This tool was originally developed by ISC GmbH. This PC software can be installed on 32-bit versions of Windows XP/Vista/7/8/10/11. We recommend checking the downloaded files with any free antivirus. The most popular versions of the software 3.9, 3.8 and 3.7.
From the developer:
New computer software Aircalc for units selection enables easy and quick selection of appropriate size, type and configuration of unit, according to requested parameters and conditions. Great variety of options and printouts will ease and speed-up the process of unit construction and offer a lot of precious and needed unit data (technical characteristics, noise levels, dimensions, weight etc.).
You may want to check out more software, such as AB-Euro, Amyuni PDF Converter or MITCalc-Shafts, which might be similar to airCalc++.