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SPAES GmbH & Co. KG has installed a TETRA radio system with night vision imaging system (NVIS) approval in nine Airbus EC135 helicopters for a customer in air rescue.
An NVIS functional test was performed at the customer’s location. “For the approval, the helicopter was placed in a hangar that can be completely darkened and a functional test was carried out with our own equipment,” said Joachim Schanz, CEO, SPAES.
With NVIS glasses, provided by the customer, the external view could be verified, so that the display of the TETRA operation unit does not dazzle the pilot and the crew.
The co-pilot or the crew operates the tactical radio system to contact the ground staff for communication during operation.
TETRA is a safe and tap-proof communication standard, which was designed for official administration and is well known as resource-saving. The system allows safe data exchange.
For installation, SPAES issued a minor change in the European Aviation Safety Agency (EASA) Part J21 design organization and prepared the required compliance documents.