Military Embedded Systems

RTOS for military helicopter engine-control units meets safety-critical certification


April 11, 2024

Lisa Daigle

Assistant Managing Editor

Military Embedded Systems

Apache graphic courtesy U.S. Army

SANTA BARBARA, Calif. Green Hills Software announced that its INTEGRITY-178 real-time operating system (RTOS) is deployed in the engine control units (ECUs) from Triumph Group, Inc. (TRIUMPH) for a number of different 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 -- in order to meet RTCA/DO-178B Design Assurance Level A (DAL A) certification. 

According to a statemenet from Green Hills Software, TRIUMPH has also selected the INTEGRITY-178 tuMP multicore RTOS for the next generation of TRIUMPH ECUs; these have applications running concurrently on all cores of a quad-core processor, leveraging the multicore robust partitioning enabled by INTEGRITY-178 tuMP to the same level as for single-core processors.

Green HIlls Software states that TRIUMPH chose 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).  


Featured Companies

Green Hills Software, Inc.

30 West Sola Street
Santa Barbara, California 93101

Triumph Group

899 Cassatt Road #210
Berwin, PA 19312