FOIL R4.5 Demo 5.0 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 most popular versions among the software users are 5.0 and 4.5. The actual developer of the program is Vacanti Yacht Design. The program's installer file is commonly found as FOIL97.exe. FOIL R4.5 Demo lies within Photo & Graphics Tools, more precisely 3D Design.
From the developer:
Vacanti Yacht Design LLC FOIL Design and Analysis program provides a Windows CAD user interface and CAD file export for the well known Eppler Analysis code package.
Design a foil with a high area coefficient that works over the desired ranges of speed, thickness and chord length.
You may want to check out more software, such as R4 3DS Emulator, R4 Rocketman or PathPlanner R4, which might be related to FOIL R4.5 Demo.
General
Simulation