COMAC C919 to use DDC-I’s Deos operating system

DDC-I, a leading supplier of software and professional services for mission- and safety-critical applications, is to supply its Deos safety-critical real-time operating system (RTOS) for use in Honeywell’s next generation flybywire flight control system, which has been selected for the new Commercial Aircraft Corporation of China (COMAC) C919 airliner family.

“We are extremely pleased that Deos has been selected for this key Honeywell flight control program,” said Bob Morris, president and CEO of DDC-I. “We look forward to continuing our valued relationship with Honeywell on this very important new avionics programme.”

The Deos RTOS has been used in hundreds of safety-critical avionics applications in dozens of commercial aircraft type certifications and military aircraft types since its initial certification in 1998, reports DDC-I. And the company claims that the time- and space-partitioned RTOS features deterministic real-time response and employs patented “slack scheduling” to deliver higher CPU utilisation than any other certifiable safety-critical COTS RTOS.

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