Japan's Advanced Technology Demonstrator-X (ATD-X) fighter test platform will not fly until at least late 2015 due to issues with the software that controls automatic engine restarts, according to officials at the country's Ministry of Defence (MoD).
The first test flight was scheduled to take place before the end of the current financial year, but the problems affecting the engine control unit (ECU) will require several months to resolve, the officials said.
The ECU is a critical safety and power management system that automatically reactivates an engine if it shuts down in flight.
MoD officials said that the current issue is a software fault. Rather than using existing off-the-shelf systems, much of the technology installed in the ATD-X was developed especially for the project and so solutions