RTOS, secure virtualization technology for real-time systems, DO-178B and hypervisor for the most demanding embedded operating system applications...

U.S. Naval Open Architecture (OA) Operating SystemsEmbedded operating systems for military software and hardware

The LynxOS® RTOS is the only POSIX®-conformant RTOS that is Linux ABI-compatible. An open-standards operating system such as the LynxOS RTOS must be used as the operating system in all new U.S. Navy systems, according to the Naval Open Architecture (OA)—to ensure future system interoperability and to support software reuse.

The LynxOS RTOS was certified as Category 3-compliant for the former Navy Open Architecture Computing Environment (OACE), whose key tenets have since been incorporated into the DoD IT Standards Registry (DISR)—the online repository of IT standards formerly captured in the Joint Technical Architecture (JTA).

What is U.S. Naval Open Architecture ?

The official definition of Naval Open Architecture is, "the confluence of business and technical practices yielding modular, interoperable systems that adhere to open standards with published interfaces. OA delivers increased warfighting capabilities in a shorter time at reduced cost."

Key Open Architecture principles include:

  • Modular design and design disclosure
  • Reusable application software
  • Interoperable joint warfighting applications and secure information exchange
  • Life-cycle affordability
  • Encouraging competition and collaboration through development of alternative solutions and sources

U.S. Naval Open Architecture documents

LynuxWorks operating systems prove themselves every day in numerous Naval Open Architecture programs:

  • DDG-1000 (formely known as DD(X)—next-generation warship
  • SSDS—Shipboard Self-Defense System
  • COTS for AEGIS-equipped cruiser conversion
  • SPY radar program
  • Weapons Control System (WCS)
  • NSWC SGS/AC Shipboard Gridlock System with Automatic Correlation
  • TMS UK Navy sonar systems (display and communications)
  • Patriot Missile trainer and simulator—long-range, high-altitude, all-weather defense system
  • MK 30—anti-submarine warfare training target system
  • Raytheon MK 57 vertical launching system—DDG-1000
  • Joint Tactical Combat Training System (JTCTS)—POD control system
  • BSG-1 Program Nuclear Tomahawk Missile Program—U.S. Navy surface- and submarine-launched precision strike standoff weapon
  • Naval Undersea Warfare Center (NUWC) submarine trainer

Both the Naval OA initiative and the Weapons Systems Common Operating Environment (WSCOE), rely on the hard, real-time deterministic capabilities of the LynxOS real-time operating system to satisfy their rigorous system requirements.

A LynuxWorks embedded OS is featured in this Navy Open Architecture embedded system application:
Who else uses a LynuxWorks embedded operating system?
"I have used LynxOS for four years now and their support is at the top of the list... I have never seen a better bunch of people or a more effective support structure."
- B.J., LynxOS developer employed at JPL, posted on comp.os.lynx newsgroup
LynxSecure Separation Kernel and Embedded Hypervisor LynxOS-SE Embedded RTOS Luminosity Eclipse-based IDE
LynxOS Embedded RTOS RTOS: LynxOS-178 for software certification


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