• ACSL will provide its long-range, multi-use drone “PF4” and operational support for Japan Post’s demonstration of dual-drone operation in Toyooka City, Hyogo Prefecture.
• The demonstration aims to gain insights into reducing per-aircraft operating costs through simultaneous operation of two drones.
• Using PF4—which allows users to customize payloads themselves—the project will realize Japan’s first simultaneous flight of two identical aircraft models for logistics and patrol missions.

ACSL Ltd. (ACSL) hereby announces that it will provide two units of its long-range, multi-use drone “PF4,” as well as operational support, for a demonstration of dual-drone operation (the “Demonstration”) to be conducted by Japan Post Co., Ltd. (“Japan Post”) in Toyooka City, Hyogo Prefecture, from February 24 to March 3, 2026.

■Overview of the Demonstration
Since FY2023, Japan Post and ACSL have been working with Hyogo Prefecture and Toyooka City to conduct demonstrations of drone delivery services with the aim of establishing sustainable logistics networks in mountainous and depopulated areas amid the area’s declining working-age population.
These demonstrations have already produced results such as expanding delivery routes and enabling fully remote operations. In FY2025, the project will focus on simultaneous operation of multiple drones, a critical challenge for the commercialization of drone logistics.
In previous demonstrations, one operator controlled a single aircraft. Establishing a system in which a single operator can monitor and control multiple drones simultaneously is expected to reduce labor costs and significantly enhance the practicality of drone-based logistics.
For this Demonstration, ACSL will provide two PF4 units. One unit will perform a logistics delivery mission, while the other will conduct a patrol mission (e.g., monitoring for landslides) under a disaster-response scenario, each following separate flight routes. This marks Japan’s first simultaneous operation of two identical aircraft models for different mission types.
Flight routes (Created by Japan Post based on Geospatial Information Authority of Japan maps)

■PF4 Long-Range, Multi-Use Drone
PF4 is an innovative industrial multirotor drone designed primarily for logistics but suitable for a wide range of applications. In its logistics configuration, the PF4 offers long-range performance capable of flying 40 km with a 5.5 kg payload, along with high landing precision, strong wind resistance, and all-weather operability—capabilities designed for real-world operational environments.
To support multi-purpose use, the PF4 can be equipped with mission-specific payloads for logistics, surveying, inspection, and nighttime BVLOS flight. These payloads can be exchanged by users themselves thanks to PF4’s modular design.
The dual-mission simultaneous operation conducted in this Demonstration was enabled by this payload-exchange mechanism, allowing the same PF4 aircraft model to be configured for logistics and patrol missions respectively. This facilitates standardization of aircraft operation and maintenance, contributing to the establishment of sustainable drone operations in local communities.
Long-range, multi-use drone “PF4”

Please refer to the PDF for the product details.

As a leading drone manufacturer in Japan, ACSL will continue advancing aircraft development and operational support to promote the social implementation of drones in the logistics sector, contributing to the realization of sustainable logistics.

Please click here for the PDF.