Hermeus Develops Quarterhorse High-Speed Drone With Anduril Autonomy
U.S. aerospace company Hermeus is integrating Anduril Industries’ autonomous mission software into its high-speed unmanned aircraft, the Quarterhorse Mk 2. The partnership focuses on combining a hypersonic-capable aircraft with an autonomous mission system to assess its potential in fast-moving, complex operational environments.
According to Hermeus, the two companies are deploying Anduril’s Lattice for Mission Autonomy as the core software for planning and executing missions with the Quarterhorse Mk 2. The first flight test of the integrated system is scheduled for 2027.
Quarterhorse Mk 2 Targets Mach 3-Class Performance
Quarterhorse is a high-speed unmanned aircraft being developed by Hermeus with support from the Defense Innovation Unit. The Mk 2 platform is designed to operate mission payloads at speeds of up to approximately Mach 3.
However, the flight records made public so far represent test results from different stages of development. In a May 2026 test, Hermeus’ Quarterhorse Mk 2.1 reached Mach 1.21, completing an unmanned supersonic flight. That was a development milestone, not the aircraft’s final operational performance.
Anduril’s Lattice Supports Everything From Automated Flight to Mission Command
The central objective of the integration is not simply flight automation, but the establishment of mission autonomy. Through Lattice, Anduril plans to connect the aircraft’s flight software with ground-control systems and provide an integrated environment in which operators can manage multiple unmanned platforms.
According to Breaking Defense, Quarterhorse’s earlier testing focused primarily on remote control. Under the new partnership, the companies plan to expand automation from basic functions such as automated takeoff and flight control to mission planning, operations, and ground control.
Combining High-Speed Flight With Autonomous Missions
High-speed unmanned aircraft can cover large areas of operation in a short period, but the faster they travel, the more difficult it becomes for operators to intervene in real time. Integrating Lattice is intended to provide the software foundation needed to respond to changing conditions in flight and coordinate multiple assets and missions.
Through the partnership, Hermeus also plans to explore whether Quarterhorse can conduct complex missions in cooperation with manned fighter aircraft and other unmanned systems. Specific operational scenarios and the scope of weapons employment, however, are expected to be determined through future testing and according to government customer requirements.
Partnership Puts Open Defense Ecosystem to the Test
The agreement is being viewed as an example of a defense-industry model in which hardware and software developed by separate companies are integrated into a single system. Hermeus will focus on high-speed aircraft design and iterative flight testing, while Anduril will provide autonomous mission software that can be deployed across a range of platforms.
Anduril describes Lattice as an open autonomous system that is not tied to any particular aircraft. If deployed on Quarterhorse, the aircraft could become one of the first large, high-speed platforms outside Fury on which Lattice is validated, adding significance to the integration.
2027 Integrated Flight Test Will Be a Key Milestone
The key question going forward is whether the software integration will operate reliably in an actual high-speed flight environment. The companies will need to determine whether automation functions validated at low and medium speeds can remain effective during supersonic flight and under high-temperature and high-load conditions.
The first integrated flight test, scheduled for 2027, is expected to evaluate not only Quarterhorse’s flight performance but also the autonomous mission system’s operability, ground-control methods, and the level of oversight required from human operators. If successful, it could help accelerate the development and operational use of high-speed unmanned aircraft.
Frequently Asked Questions (FAQ)
What kind of unmanned aircraft is Quarterhorse?
Quarterhorse is a high-speed unmanned aircraft being developed by Hermeus for defense missions and high-speed flight testing. The Mk 2 platform is designed to reach speeds of up to approximately Mach 3.
What technology is Anduril providing for Quarterhorse?
Anduril is providing Lattice for Mission Autonomy. The system is a software platform that integrates mission planning and execution, autonomous flight, coordination between platforms, and ground-control functions.
Has Quarterhorse already flown at Mach 3?
No. The latest publicly disclosed supersonic test record for Hermeus’ Quarterhorse Mk 2.1 was Mach 1.21, recorded in May 2026. Mach 3 remains a development target.
When will the integrated flight test of Anduril’s autonomous system take place?
Hermeus said it plans to conduct the first flight test of a Quarterhorse equipped with Lattice in 2027.
What does the partnership mean for the defense industry?
The partnership is significant because it tests a new unmanned-systems development model in which a high-speed aircraft manufacturer and an autonomous mission-software company combine their respective areas of expertise. The approach could eventually expand to integrate a range of aircraft, sensors, and ground-control systems.
