NVIS certification of pre-installed tactical radios in MD 902 helicopters

In a recent project, SPAES completed a night vision imaging system (NVIS) certification of pre-installed tactical radios in an MD 902 helicopter for a customer in its own European Union Aviation Safety Agency (EASA) Part 21J design organization. This certification ensures that the radios are fully compatible with night vision equipment and that the helicopter can operate during nighttime missions.

To achieve this certification, SPAES installed NVIS filters on the tactical radios, including the Ascom SE 550, Motorola MTP3550, and Motorola MTM800/5400 models. These radios are placed in the center console of the cockpit to provide optimal accessibility and usability for the crew.

To validate the effectiveness of the NVIS integration, an NVIS ground test was conducted. This involved testing the radios under simulated night-flight conditions to ensure they met all operational requirements and standards for NVIS compatibility. To provide accurate assessments under varying light intensities, the ground evaluation set-up created a controlled environment completely sealed off from external light sources. This realistic testing scenario produced reliable results that mirrored real-world conditions.

SPAES also assessed the compatibility of night vision goggles (NVGs) with the aircraft’s cockpit lighting. By identifying and addressing any potential issues, SPAES enhanced the safety and operational capabilities for pilots using NVGs and ensured readability of instruments and displays without compromise.

Last year, SPAES announced its offering in response to the new Commission Implementing Regulation (EU) 2023/1020.