Collins picks real-time software from Green Hills for trusted computing in Navy combat jet training system

Jan. 31, 2020
TCTS II enables rapid adaptation of missions into training as well as joint and coalition interoperability with fourth- and fifth-generation combat jets.

SANTA BARBARA, Calif. – Collins Aerospace, a United Technologies company in West Palm Beach, Fla., needed a secure real-time software operating system for the Tactical Combat Training System Increment II (TCTS II) system that Collins is designing for the U.S. Navy. They found their solution from Green Hills Software Inc. in Santa Barbara, Calif.

Green Hills officials have announced that Collins has chosen the Green Hills INTEGRITY-178 Time-Variant Unified Multi-Processing (tuMP) real-time operating system (RTOS) for the Xilinx UltraScale+ field-programmable gate array (FPGA) for the TCTS II combat jet training system.

Key factors in the selection of INTEGRITY-178 tuMP were its several independent levels of security (MILS) architecture, its ability to host multi-level security (MLS) applications, its ability to host a guest operating systems and legacy applications in a secure virtualized partition, and its conformance to the Future Airborne Capability Environment (FACE) 3.0 open-systems embedded computing standard, Green Hills officials say.

The Collins Aerospace TCTS II enables rapid adaptation of missions and threats into training as well as joint and coalition interoperability with fourth- and fifth-generation aircraft.

Related: Embedded real-time operating system software secures military mission-critical data from growing threats

The ability for the Navy and Marine Corps to advance future technology insertions rapidly is due to the Collins Aerospace open architecture design and use of industry standards like FACE.

The INTEGRITY-178 tuMP high-assurance RTOS is certified to the Separation Kernel Protection Profile (SKPP) trusted-computing profile published by the Information Assurance Directorate of the U.S. National Security Agency (NSA).

That certification was done by the National Information Assurance Partnership (NIAP) to Common Criteria EAL 6+. INTEGRITY-178 tuMP also is certified conformant to latest revision of the FACE 3.0 standard, and meets all of the stadard's multicore requirements.

For more information contact Green Hills Software online at, or Collins Aerospace at

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