The Japanese military has found a surprising new use for cardboard in the production of military drones, moving away from expensive materials like aluminum and carbon fiber. This strategy, inspired by modern conflicts, provides a tactical advantage that is both formidable and unexpected.
What you will learn:
- The military drone delivered in kit form: How Japan assembles aerial targets in less than five minutes.
- Low-cost stealth: Why corrugated cardboard has become the enemy radar’s worst nightmare.
- The wooden reconnaissance plane for $450: Tokyo’s radical strategy to avoid foreign suppliers.
The combat drone delivered like a flat-pack furniture
In the arms industry, the standard has always been to build sophisticated, durable, and extremely expensive devices. Japan is now taking a different approach. The Ministry of Defense has partnered with Air Kamui, a local startup that has developed the AirKamuy 150, a functional drone with a fuselage made of corrugated cardboard covered with a waterproof coating.
This concept maximizes logistical efficiency: these aircraft are shipped completely flat, stacked on pallets, and assembled directly on the field in just five minutes. Priced at around $2,500 (a bargain in the military domain), this model has been adopted by the Japan Maritime Self-Defense Force. It currently serves as a “consumable” training target to test missile defenses of ships without risking valuable equipment destruction.
Cardboard: An unexpected invisibility cloak
While the economic aspect is evident, the choice of cardboard hides a major operational advantage that engineers now exploit for reconnaissance missions.
Traditional radars are designed to bounce their waves off hard surfaces, such as metal or carbon fiber found in conventional drones. Corrugated cardboard, on the other hand, absorbs or disperses a large portion of these signals. This extremely low radar signature allows these small aircraft to infiltrate contested areas much more easily without triggering alert systems, providing a decisive advantage in spying on enemy positions.
The era of “disposable” and 100% local squadrons
This material revolution is part of a complete overhaul of the Japanese military doctrine, heavily influenced by the war in Ukraine where swarms of small drones redefined the front line. The focus is no longer on having the perfect drone, but owning so many that their loss carries no strategic importance.
To push this independence logic to the extreme, Japan unveiled the “Shiraha” project last April. Developed by the startup JISDA, this drone model replaces cardboard with a wooden fuselage. Its main advantage? It costs only $450 and is made exclusively with local components. In a world where supply chains are fragile, Japan ensures the ability to print, saw, and assemble its “disposable” army completely autonomously.
[Fact Check: The video provided is related to the AirKamuy 150 cardboard drone with speeds of 120 km/h and 80-minute flights.]
