HELI-X is based on Java and uses an OpenGL graphics framework. The older version 4.2 requires OpenGL in the version 1.2. Version 6.0 or higher requires OpenGL in version 2.0. For V 6.0 to work, you need a graphics adapter AMD/ATI Radeon 9500, NVIDIA GeForce 5 FX, Intel GMA 4500, or better, supporting OpenGL 2.0 or better. The old version 4.2 for Mac OS X requires a Java installation. This Java version is recommended: Java for OS X 2014-001.
In order to use HELI-X, you need an USB controller or an USB interface for your transmitter. Details can be found here. You can start HELI-X without controller, but the control of the helicopter is not possible.