Since the A400M military airlifter presently is - and in the foreseeable future will remain - the only application for the TP400-D6, this unlimited approval by a civil agency marks a milestone. The engine is being produced under a civil type certificate, but its operation by purely military users did not fall within the scope of the certification. "After two years of intensive discussions with representatives of civil and military agencies we have now finally reached this goal, which is of importance to the TP400-D6 program and its customers," says Gerhard Baehr, MTU's Director TP400-D6/Tyne Programs.
Plans now are to implement a set of harmonized military airworthiness rules, the EMAR (European Military Airworthiness Requirements) regulations, which are essentially based on the civil regulations, for adoption across Europe.