This article published in collaboration with JUIDA, the Japan UAS Industrial Development Association.
Sora-iina Inc. completed Japan’s first area-based Level 4 drone delivery demonstration in Nagasaki Prefecture, marking a significant regulatory milestone for autonomous unmanned aerial systems in populated areas. The demonstration, conducted in the Aokata district of Shimokoshikijima, integrated fixed-wing and multicopter-type drones to deliver pharmaceutical supplies and everyday goods to rooftops.
The demonstration employed two distinct aircraft for the delivery operation. A Zipline Sparrow fixed-wing drone, capable of 100 km/h maximum speed and equipped with a maximum payload of 1.75 kg, transported cargo to the distribution point. Upon arrival, a multiroticopter-type drone performed final delivery—specifically an ACSL PF2-CAT3 certified machine with maximum payload capacity of 1.0 kg and a maximum flight time of 17.5 minutes at maximum takeoff weight of 9.8 kg.
Level 4 Drone Delivery Authorization Addresses Operational Challenges
Previous operations utilized Level 3 flights—uncrewed airspace missions where packages were parachuted to designated collection points, requiring recipients to retrieve goods from predetermined locations. The shift to Level 4 drone delivery authorization, permitting operations over populated areas with line-of-sight limitations, enables direct rooftop delivery to hospitals and municipal offices.
“This area-based authorization addresses a critical framework gap,” Sora-iina stated. “Previously, linear-path approvals required separate applications for each new delivery destination. Area-based approval eliminates this administrative burden, allowing multiple destinations within authorized zones without repeated authorization requests.”
The demonstration involved coordination with Japan’s Ministry of Land, Infrastructure, Transport and Tourism for area-wide risk assessment protocols, establishing methodologies for evaluating both ground and airborne risks across designated regions rather than individual flight corridors.
Expanding Level 4 Drone Delivery Operations
The multicopter drone successfully delivered actual pharmaceutical orders to Kamigoto Hospital and Shimokoshikijima Municipal Government rooftops. Sora-iina plans to advance fixed-wing Level 4 operations to eliminate cargo transfer requirements, enabling direct depot-to-destination delivery. The initiative operated under Japan’s “Kizuna” Special Economic Zone program, in collaboration with Nagasaki Prefecture, local municipalities, ACSL drone systems provider, and four pharmaceutical distributors.
More information is available from the original press release (in Japanese).
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Ian McNabb is a journalist focusing on drone technology and lifestyle content at Dronelife. He is based between Boston and NH and, when not writing, enjoys hiking and Boston area sports.
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