RTI News Releases

CAE Sim XXI Simulators Take Off with RTI's NDDS Middleware

RTI NDDS middleware powers the data distribution for CAE's next generation full flight simulators

ORLANDO, Fl.—December 2, 2002—CAE, one of the world's leading providers of simulation and training, today announced that their new CAE SimXXI full flight simulators (FFSs) are powered by NDDS publish-subscribe middleware from RTI. The CAE SimXXI architecture uses NDDS for real-time communications between the simulator subsystems.

CAE SimXXI (twenty-one) is designed with an innovative modular software architecture that increases software reusability and reduces software maintenance costs. As such, RTI's NDDS is an integral part of the software architecture. CAE SimXXI uses industry standard components such as Intel® Pentium® PC-based computer systems and Microsoft® Windows®-based operating systems. For communications between simulator subsystems, CAE Sim XXI uses NDDS over high-bandwidth IEEE-1394. "In the past we probably would have developed an expensive, proprietary system for data communications", said Peter Jarvis, Chief Designer for CAE's Civil Simulation & Training division, "but by using NDDS were able to deliver a proven, reliable and cost effective solution to our customers."

Other factors attributed to NDDS's adoption by CAE, including its availability for a wide variety of computing platforms, the modularity of a middleware application and its simple yet powerful application programming interface (API). "We not only needed low-latency data transfers between simulator components but also a software communications infrastructure that is simple to use and integrate", states Jarvis.

NDDS Middleware and WaveWorks Tools

NDDS is publish-subscribe network middleware designed specifically for distributed, real-time applications. It uses the standard UDP interface provided by the operating system vendor to distribute data. The publish-subscribe application programming model eliminates network programming and is easy to learn and manage. In addition to NDDS, Real-Time Innovations provides powerful distributed system development tools. WaveScope provides a real-time view into NDDS operation to optimize application performance. WaveSurf provides a global view of the networked objects so problems can be located and fixed during system operation. For more information on NDDS and the WaveWorks family of products, go to www.rti.com.


CAE is a global leader in providing advanced simulation and controls equipment and integrated training solutions for customers in the civil aviation, military and marine markets. With annual revenues in excess of $1 billion, CAE employs more than 6,000 people in Canada, the United States and around the globe. For more information about CAE and their CAE SimXXI FFS, go to www.cae.com.

Real-Time Innovations

RTI (Real-Time Innovations, Inc.) is a leading provider of software tools, platforms, and professional services for controls systems and real-time embedded applications. For over 10 years, the ScopeTools product line has been helping embedded system developers produce higher quality, more reliable solutions. Constellation and WaveWorks have been helping OEMs build highly complex control systems more quickly and efficiently. The Constellation software platform provides a framework, ready-to-use components, and a graphical programming environment for building complex control systems. The WaveWorks middleware and tools provide seamless communications and comprehensive tools for distributed, real-time systems. The RTI Professional Services team brings years of experience working with customers to design and develop real-time systems.

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RTI, Real-Time Innovations, RTI Data Distribution Service, Connext and 1RTI are registered trademarks or trademarks of Real-Time Innovations, Inc. All other trademarks are property of their respective companies.

Year: 1995-2010

Posted on December 2, 2002

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About RTI

Real-Time Innovations (RTI) is the Industrial Internet of Things (IIoT) connectivity company. 

The RTI Connext® databus is a software framework that shares information in real time, making applications work together as one, integrated system. RTI is the largest vendor of products based on the Object Management Group (OMG) Data Distribution Service™ (DDS) standard. 

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Cameron Smead
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