The Eurofighter uses an advanced helmet mounted display and sight system based on electro-optical helmet tracking. To function properly, the relative positions and orientations of the various tracking sensors must be known very precisely – and they must be known relative to the overall aircraft coordinate system.
Eurofighter is a very advanced single-seat weapons platform, and the full-immersion Aircrew Synthetic Training Aids – ASTA – simulators play a critical role in providing realistic yet affordable pilot training. To support all the ASTA sites, Metronor was contracted to develop a highly portable solution for fast and simple on-site 6-DOF alignment of the helmet tracking system. Partially using commercial-grade rather than full MIL-STD hardware, the system is housed in a single case and is shipped between the ASTA locations on a regular basis.