Loitering munition Lumberjack: Northrop Grumman demonstrates autonomy at “Operation Lethal Eagle”

During the exercise “Operation Lethal Eagle” of the US 101st Airborne Division, Northrop Grumman Corporation demonstrated how autonomously its loitering munition – the Lumberjack Group 3 unmanned aircraft system – can already operate. The demonstration shows how far the system has progressed towards rapid operational readiness and extends the scope of autonomous warfare.

According to a recent press release, Lumberjack proved during the exercise that it can execute missions fully autonomously via the US Army Maven Smart System. Simulated munitions of the six-pound Hatchet system were dropped. In addition, artificial intelligence from Palantir provided adaptive targeting, allowing Lumberjack to adjust quickly to changing combat situations – always under human supervision, of course.

Because communication ran via satellite data links, continuous data exchange was also possible beyond line of sight, for example for mission updates and damage assessments. Precision strikes were followed by a seamless switch to surveillance mode, in which the system gathered further battlefield information.

Loitering munition Lumberjack at a glance

Lumberjack was developed as a low-cost, unmanned one-way attack aircraft system intended to support modern combat operations. A modular centre section allows different payloads to be carried and a switch between kinetic and non-kinetic effects. The system can be launched from both air and ground platforms, and precision strikes are possible from a safe stand-off distance.

Development partners were Empirical Systems Aerospace (ES Aero) and Palantir. Less than 14 months passed between concept and first flight – evidence of how quickly the programme can implement innovations. Michael Bastin, Director of Distributed Systems at Northrop Grumman, sees this as proof that the system can be adapted to different missions and payloads.

Major Jonathon Bless, spokesperson for the 101st Airborne Division, commented on behalf of the division:

Although the focus of Operation Lethal Eagle was on training and readiness, the exercise also offered a unique opportunity to test and evaluate numerous new systems from the defence industry. Northrop Grumman's Lumberjack was one of the systems tested, illustrating how cooperation between the military and industry can drive innovation in the defence sector.— Major Jonathon Bless, spokesperson for the 101st Airborne Division