All News | Boards | Chips | Devices | Software | Archive | About | Contact | Subscribe
Follow LinuxGizmos:
Twitter Facebook Pinterest RSS feed
*   get email updates   *

U.S. military UAVs migrate to Linux

May 6, 2014 — by Eric Brown 15,526 views

Raytheon is switching its UAV control system from Solaris to Linux for U.S. military drones, starting with a Northrop Grumman MQ-8C Fire Scout helicopter.

Earlier this month Raytheon entered into a $15.8 million contract with the U.S. Navy to upgrade Raytheon’s control systems for unmanned aerial vehicles (UAVs), according to a May 2 Avionics Intelligence report. The overhaul, which involves a switch from Solaris to Linux, is designed to implement more modern controls to help ground-based personnel control UAVs.

Raytheon TCS ground station equipment
(click image to enlarge; source: Raytheon)

Raytheon’s tuxified version of its Vertical Takeoff and Landing Unmanned Air Vehicle (VTUAV) Tactical Control System (TCS) will also implement “universal UAV control qualities.” As a result the TCS can be used in in all U.S. Navy, Air Force, Army, and Marine Corps UAVs that weigh at least 20 pounds. By providing an open standard, the common Linux-based platform is expected to reduce costs by limiting the types of UAV control systems that need to be built and maintained for each craft.

When the upgrade is completed in April 2016, the VTUAV TCS will first see action in Northrop Grumman’s 41-foot long MQ-8C Fire Scout unmanned helicopter. The MQ-8C Fire Scout, which is itself a retrofitted Bell 407 commercial helicopter, is primarily used for reconnaissance, but can also be used for precision targeting support to assist other combat aircraft.

Northrop Grumman MQ-8C Fire Scout
(click image to enlarge; source: Raytheon)

At the U.S. Navy’s request, Raytheon is converting the VTUAV TCS “block II” system from Sun’s aging, UNIX-based Solaris 8 OS to a “B2VL” version of Linux, says Avionics Intelligence. The company will “continue evolving the system to the military’s new Unmanned Aerial System Control Segment architecture,” says the story.


Raytheon will also implement more modern intuitive controls, as well as automate testing procedures, and support software upgrades in the field, says Avionics Intelligence. In addition, the company will upgrade the TCS full-motion video capability and shipboard messaging formats, while implementing a new training and simulation capability.

Assuming the Fire Scout implementation goes well, the U.S. military will then expand the system to other large UAVs. In addition to U.S. military UAVs, the systems will be used by NATO in its STANAG 4586-compliant UAVs. The TCS can also be configured in racks for ship-based operations, “shelterized” as a land-based system, or integrated into a shelter on land vehicles such as the Humvee.

A brief history of Linux in the military

Since the early days of embedded Linux, the U.S. military has been gradually converting selected computer equipment from real-time operating systems (RTOSes), as well as Unix and Windows platforms to Linux. RTOSes, with their greater real-time capabilities, still lead the way in embedded systems, especially in combat, but Linux is increasingly finding a role, especially in systems where advanced user interfaces and wireless communications are important.

Back in 2001, the U.S. Navy and GET Engineering announced that the latter’s commercial off-the-shelf (COTS) Navy Tactical Data Systems (NTDS) would switch to Hard Hat Linux, the forerunner of MontaVista Linux, and one of the first embedded Linux distributions. As cost controls were tightened later in the decade, the U.S. Department of Defense increasingly turned to Linux as a way to cut costs by providing common open platforms based on COTS systems.

In 2006, Concurrent Computer Corp. and Real-Time Innovations Inc. (RTI) announced that their Real-time Linux and middleware would support the U.S. Navy’s Aegis Open Architecture program for modernizing the Navy’s Aegis-equipped cruisers and destroyers. Numerous Linux-based embedded workstations have made their way to the military, including Intergraph’s circa-2009 TD-R 7X11R-S. Smaller, and more rugged tactical systems have also run Linux, including Mercury’s PowerBlock 50.

Rugged handhelds, first running Linux and later Android have also found their way into military field duty, including TAG’s Linux-friendly TC-100 (pictured). In 2011, Black Diamond Advanced Technology announced a wearable Linux-ready computer system called the Modular Tactical System designed to integrate into a warfighter’s uniform and equipment.

Linux was also employed in some of the U.S. Army’s early autonomous vehicles such as John Deere’s circa-2006 R-Gator (pictured), which incorporated an iRobot control, navigation, and obstacle avoidance system running LynuxWorks’s BlueCat Linux. Thanks in part to the major role Linux played in DARPA autonomous car challenges, many of today’s emerging commercial autonomous cars also run Linux.

(advertise here)

Print Friendly, PDF & Email

9 responses to “U.S. military UAVs migrate to Linux”

  1. Tom Morton says:

    A very cool gismo indeed. I include the following links from Amnesty International, a respected human rights group, on the effects of drones on civilians:

    And this, from the perspective of a drone operator who couldn’t deal with the psychological burden of his ‘work’:

    Tech websites can be apolitical, but they shouldn’t be amoral.

  2. Dave says:

    Not really a story to be boasting about – U.S Drones are killing an increased number of innocent people year on year including women and children. Bombed schools and hospitals on foreign land ….U.S terrorists.

    • Jason says:


      Leave your political agendas at the door please. If you don’t like interesting technological hardware developments in the Linux world, then don’t come here.

      • will says:

        Thanks Jason! I am so sick and tired of everything has to be politcal instead of commenting on the article.

        • Dave says:

          Forget politics then ..what about humanity?
          Is it humane to be killing huge vast numbers of innocent people with drones?

          You may be comfortable with your Government committing murder in your name, but I am not… they are your elected officials that represent you.

      • Dave says:

        Linux is political .. The Linux Foundation has political lobbyists in the U.S, UK and some European countries +others

  3. sto says:

    No. Ethics is a topic to be discussed in technical circles. A licence which forbids mil use could be an option, for example (althrough i’m not really for that one, but for feasability reasons)

  4. Dzakub says:

    I agree with Dave. It is pretty sad to see how technology is harness for more efficient killing machine. I doubt that was Richard Stallman goal.

  5. Dontknowjack says:

    Seriously? Politics and Ethics… especially the drones vs. civilians? Get over yourselves…. you think drones are just used for killing? Or maybe you want to get waste deep into some discussion about collateral damage… this isn’t the place for it.

    Some drones are weapons, a lot aren’t – those that are – well weapons kill, but its the operators – that do the killing by accident or deliberately. How something is used – might be a valid discussion or argument in the right forum, but not here.

    Frankly its like arguing that guns kill people or bombs or anything else that is a weapon – heck even sticks and stones – but they require a HUMAN element to use them.

    BTW Dzakub – freedom of use – means just that FREEDOM of USE even if you, me or anyone else doesn’t particularly like the way its used. I don’t think even Stallman would argue freedom of use for some instead of all…. limited freedom in any form is not freedom at all.

Please comment here...