U.S. Army announces tender for drones to transport blood and medical supplies to the frontline

Soldiers change the batteries of a drone during a drone-based blood resupply as part of the multinational Hospital Exercise.

The U.S. Army is looking for developers to create prototype drones capable of transporting blood and medical supplies directly in the field under the Army Blood Link project.

According to a new request, each drone must transport at least 20 units of blood with a total weight of 35 to 50 pounds. The aircraft must provide a one-way transport radius of 30 kilometers with a maximum range of up to 100 kilometers, ascend to an altitude of up to 18,000 feet, and be ready for launch in just 30 minutes after receiving a mission.

Since blood is a highly sensitive material, a key requirement is precise temperature control. The cargo container must maintain the required temperature regime during three hours of transport in ambient temperatures ranging from 15°F to 120°F with high humidity. In addition, the vibration-, precipitation-, and dust-resistant compartment must accommodate standard blood bags measuring approximately 8 by 5 inches.

The drone must land with an accuracy of 10 meters from the target or drop the cargo from a height of 10–15 meters without damaging the medical supplies. The military plans to use semi-autonomous platforms with autonomous waypoint navigation and return-to-base functions under operator supervision.

Due to compressed timelines, the Army recommends focusing on the adaptation of existing commercial off-the-shelf (COTS) solutions. The deadline for applications is September 21, and finished prototypes must be delivered within three months of contract award.