Terra Drone Corporation announced that it has developed in-house a domestically produced flight controller for defense drones, “Terra DFC,” and has established a mass-production system for it.
This flight controller was developed on the premise that it will be installed in the “general-purpose defense drone” scheduled for delivery to Japan’s Ministry of Defense. It is a core component responsible for a drone’s attitude control, motor control, sensor data processing, and flight control — in other words, the drone’s “brain.”
Terra Drone has integrated the necessary control functions compactly and simply onto a single circuit board, designed with mass production in mind. The company has already established a system capable of high-volume manufacturing and will deploy the controller as a key component supporting the domestic mass production of defense drones.
Background
Japan’s drone industry remains heavily dependent on components and aircraft sourced from overseas. According to the Ministry of Economy, Trade and Industry (METI) materials, foreign-made products account for roughly 90% of Japan’s industrial-use drone market, and even when domestic manufacturers produce complete aircraft, they are known in some cases to source critical components — such as batteries, motors/ESCs, flight controllers, and video transmission modules — from overseas. [1]
Unmanned aerial vehicles have also been designated as a specified critical good under Japan’s Economic Security Promotion Act. Government materials indicate a policy of building a domestic mass-production base capable of supplying approximately 80,000 unmanned aerial vehicles and their critical components by 2030. [2][3]
For defence applications, the importance of a supply chain that does not depend on any specific country is even greater. Given geopolitical risk, export controls, potential supply disruptions, and cybersecurity concerns, it is essential to have a system in place that can manage and mass-produce not only the aircraft itself but also key components — including batteries, control systems, communications, and ground control — domestically.
Flight controllers in particular are a core component responsible for a drone’s flight control. Relying on foreign-made “black box” components can create constraints around specification changes, modifications to control software, log management, sensor integration, security verification, and emergency procurement of alternatives.
Features of Flight Controller
The domestically developed flight controller was designed on the premise of installation in the Ministry of Defense’s “general-purpose defence drone,” with an emphasis on cost efficiency, compact size, mass-producibility, and ease of modification.
Key features include:
- Developed in-house on the premise of installation in the Ministry of Defense’s “general-purpose defence drone”
- A core circuit board responsible for attitude control, motor control, sensor processing, and flight control
- Integrates all necessary control functions compactly and simply onto a single circuit board
- Domestic quality control, modification, and supply systems established
- Future expansion to other airframes envisioned, including interceptor drones, reconnaissance drones, and drones for critical infrastructure protection
Going Forward
What matters for defence drones is not simply developing the airframe, but having a system in place that can continuously produce, modify, and operate the necessary quantities even during a contingency or under supply constraints.
Following its domestic battery business, Terra Drone has now established domestic production and mass-production systems for flight controllers as well. This strengthens the domestic supply base for two critical components of defence drones: the power system and the control system.
Going forward, in addition to installing this flight controller in the Ministry of Defense’s “general-purpose defence drone,” Terra Drone will also consider applying it to multiple other defence drones — including interceptor drones, reconnaissance drones, and drones for critical infrastructure protection — as it works to build a sustainable, domestically produced drone supply chain.
Sources
[1] Ministry of Economy, Trade and Industry, “Basic Direction of Efforts to Ensure a Stable Supply of Unmanned Aerial Vehicles, etc.”
[2] Cabinet Office, “Specified Critical Goods Under the Economic Security Promotion Act”
[3] Ministry of Economy, Trade and Industry, “Project to Strengthen Supply Chain Resilience Contributing to Economic Security (Unmanned Aerial Vehicles)”
Source: Terra Drone Corporation