Green Hills operating system chosen for Marine Corps helicopter avionics computer upgrade

SANTA BARBARA, Calif., 14 Feb. 2013. Military avionics designers at the Northrop Grumman Corp. Electronic Systems segment needed a multicore software operating system for the company's Gen II mission computer for the U.S. Marine Corps UH-1Y and AH-1Z helicopter avionics upgrades. They found their solution from Green Hills Software in Santa Barbara, Calif.

Designers at the Northrop Grumman Situational Awareness Systems business unit in Woodland Hills, Calif., are choosing the Green Hills Integrity-178B tuMP multicore operating system for the Gen II mission computer involved in the UH-1Y and AH-1Z helicopter avionics upgrades.

The Northrop Grumman Technical Refresh mission computer hosts the Integrity-178B Time-Variant Unified Multi Processing (tuMP) capabilities using a Freescale QorIQ P4080-based single-board computer.

"The UH-1Y and AH-1Z are highly integrated combat helicopters that require mission computers with significant yet flexible computing capabilities, which can be updated to support specific configurations," says Ike Song, vice president of Northrop Grumman Situational Awareness Systems.

The UH-1Y and AH-1Z helicopters are in full production by Bell Helicopter Textron Inc. in Fort Worth, Texas.

The Northrop Grumman Gen II mission computers are the heart of the company's Integrated Avionics System (IAS) that powers the glass cockpit avionics of the UH-1Y and AH-1Z helicopters.

The mission computers provide centralized control of the IAS, interface with the tactical moving map, and display situational awareness and health monitoring information. The IAS and mission computers also have an open, modular architecture to enable system upgrades and technology insertion.

The mission computers will show critical information on four displays in each of the UH-1Y and AH-1Z helicopters, which make up the Marine Corps light attack helicopter squadrons.

The H-1 Upgrade program involves replacing aging AH-1W and UH-1N helicopters with upgraded UH-1Y and AH-1Z aircraft to improve commonality, reliability, and maintainability. The upgraded helicopters have 100 percent software commonality through Northrop Grumman's IAS.

The Green Hills Software tuMP multicore operating system is the foundation for the Northrop Grumman open-systems avionics computer architecture.

The Green Hills safety-critical avionics computer operating system features a multicore framework for integrating applications of different programming languages, portable operating environments, and assurance needs. Integrity-178B tuMP enables the mission computer to use the eight cores of the Freescale QorIQ P4080 microprocessor.

The Green Hills tuMP software technology defines groupings called affinity groups of how one or more software applications will use microprocessor cores.

The operating system schedules sets of affinity groups independently of other sets to permit time-lines that closely correspond to application requirements, yet enable development of other sets of affinity groups that use time windows where cores are idle.

Schedule support enables the tuMP to tailor available applications and processor time resources as necessary. Integrity-178B tuMP extends partitioning support beyond single-core processors to host several applications while preserving resources for application growth.

For more information contact Green Hills Software online at, Northrop Grumman Electronic Systems at, or Bell Helicopter Textron at

Military & Aerospace Photos

Most Popular Articles

Wire News provided by   

Press Releases

One Component, Snap Cure Epoxy Features High Strength Properties

Suitable for a variety of applications in the electronic, aerospace and OEM industries, Master Bond EP3SP5F...

One Part Epoxy Resists up to 500°F and Meets NASA Low Outgassing Specifications

Master Bond Supreme 12AOHT-LO is a one component epoxy for a variety of bonding and sealing applications in...

Low Viscosity, One Part Cyanoacrylate Is Non-Toxic and Meets ISO 10993-5 Specifications

Master Bond MB250NT is widely used for a variety of applications ranging from repair to high speed producti...

Thermally Conductive, Two Component Epoxy Passes USP Class VI Tests and ISO 10993-5 Specifications

With biocompatibility and cytotoxicity certifications, Master Bond EP21AOLV-2Med is often selected for bond...


Curtiss-Wright Corporation’s Defense Solutions division applauds Northrop Grumman Corporation (NYSE: NOC) o...

Curtiss-Wright’s New Rugged Mobile IP Router Subsystem Features an Integrated Cisco® 5915 ESR Router

Curtiss-Wright Corporation today announced that its Defense Solutions division, a Cisco® Systems Solution T...

VICTORY Shared Processing, Fire Control Computer, and Switch for Ground Vehicles Introduced by Curtiss-Wright

Curtiss-Wright Corporation today announced that its Defense Solutions division has introduced a new fully i...

GE Announces First Sub-Credit Card-Sized Multi-Function High Definition (HD) Video Tracker

HUNTSVILLE, AL.— OCTOBER 13, 2014—GE’s Intelligent Platforms business today announced at AUSA (October 13-...


Meeting the Gen3 backplane challenge with OpenVPX and COTS

Tight Pentagon budgets mean military systems must stay in the field for longer than ever before. This doesn't mean obsolete technology, however. Today's military electronics are being upgraded constantly, an...
Sponsored by:

Design Strategy Considerations for DO-178C Certified Multi-core Systems

Join Wind River to learn how system architecture and design choices can minimize your DO-178C certification challenges.

Sponsored by:

Flying, Sailing or Driving - The Rugged, Embedded Intel-based Server that goes where you need it!Flying Sailing or Driving

Leveraging the power of server-class processors is no longer relegated to the confines of data centers. Through several innovations, Mercury Systems has ruggedized Intel’s server-class chips for deployment. ...
Sponsored by:

All Access Sponsors

Mil & Aero Magazine

April 2015
Volume 26, Issue 4

Download Our Apps




Follow Us On...


Military & Aerospace Electronics

Weekly newsletter covering technical content, breaking news and product information

Cyber Security

Monthly newsletter covering cyber warfare, cyber security, information warfare, and information security technologies, products, contracts, and procurement opportunities

Defense Executive

Monthly newsletter covering business news and strategic insights for executive managers

Electronic Warfare

Quarterly newsletter covering technologies and applications in electronic warfare, cyber warfare, optical warfare, and spectrum warfare.

Embedded Computing Report

Monthly newsletter covering news on embedded computing in aerospace, defense and industrial-rugged applications

Unmanned Vehicles

Monthly newsletter covering news updates for designers of unmanned vehicles