U.S. Military Helicopters Rely on Green Hills Software for Engine Control

April 17, 2024

Green Hills Software announced that the INTEGRITY-178 real-time operating system (RTOS) is deployed in the engine control units (ECUs) from Triumph Group, Inc. (TRIUMPH) for a wide variety of U.S. military helicopters, including the AH-64D Apache, CH-47D/F & MH-47D/F/G Chinook, UH-60L/M/V Black Hawk, HH-60 Pave Hawk, MH-60 Jayhawk, and SH-60 Sea Hawk. As flight-critical systems, those ECUs running INTEGRITY-178 have been developed to RTCA/DO-178B Design Assurance Level A (DAL A).

TRIUMPH has also selected the INTEGRITY-178 tuMP multicore RTOS for its next generation of ECUs, which has applications running concurrently on all cores of a quad-core processor. Those TRIUMPH ECUs rely on the multicore robust partitioning provided by INTEGRITY-178 tuMP to the same level as for single-core processors. TRIUMPH selected the INTEGRITY-178 RTOS for the security and determinism of its DAL A partition scheduler, the quality of its certification artifacts for RTCA/DO-178B DAL A, and the high productivity of its MULTI integrated development environment (IDE).