Drone of Drones: New Unmanned Technologies of the Future

A drone of drones, or mother drone, is a term increasingly used to describe a specialized unmanned aerial vehicle (UAV) capable of transporting, launching, controlling, and retrieving other smaller drones. Such a drone serves as a mobile platform, a kind of "flying base" or "carrier," from which a group of subordinate drones is controlled. The concept of a mother drone is based on the idea of ​​swarm intelligence and distributed systems, where a single large, powerful drone coordinates the actions of many smaller devices, performing navigation, communications, power supply, and logistics functions for them.

The history of the drone

The idea for a mother drone arose in response to the limitations inherent in modern consumer and even professional drones. The main ones are limited autonomy, short range, poor interference immunity, and dependence on a clear line of sight between the controller and the UAV itself. A mother drone solves these problems by acting as a central hub that takes on key tasks of control, routing, and communication with subordinate drones, allowing them to operate more efficiently, farther, and safer.

The operating principle of a queen drone can be compared to the behavior of a queen bee in a hive. Although she is not directly involved in collecting nectar or building honeycomb, she ensures the survival of the entire swarm. Similarly, a queen drone may not perform a specific mission herself—for example, filming, delivering, or reconnaissance—but she creates the conditions for other drones to perform these missions as effectively as possible. She can operate at high altitude, out of interference, and serve as a signal relay, transmitting commands from the operator or AI systems to smaller drones operating in hard-to-reach areas.

Capabilities of the mother drone

One of the main advantages of a mother drone is its increased range. Small drones, especially microdrones or nanodrones, have a very short battery life—often less than 15 minutes. Furthermore, their radio control only works over a range of a few kilometers. A mother drone, being larger and equipped with more powerful batteries and antennas, can fly closer to the operational area and launch smaller drones from there. This allows them to conserve energy during the flight to the target and focus solely on the mission.

The mother drone can also serve as a hub for charging and maintenance. Imagine a scenario where a swarm of mini-drones monitors a forest for fires. As their batteries run low, they return to the airborne mother drone and automatically dock to recharge. Once their power is restored, they resume their flight. This system allows for continuous surveillance without the need for ground infrastructure.

Another important function is communication. In urban areas, dense forests, or mountainous terrain, direct radio communication with the ground control center is often interrupted. A mother drone, positioned above obstacles, can act as a repeater, creating a mesh network where each small drone is connected to the mother drone, and the mother drone is connected to the operator. This is especially important when using swarm technologies, where tens or hundreds of drones must coordinate their actions in real time.

Combat application

The concept of a mother drone has seen the most development in the military sphere. The militaries of the US, China, Russia, and other countries are actively testing such systems for tactical reconnaissance, electronic warfare, simulating massive attacks, and even delivering munitions. For example, the Perdix program, developed by the US Department of Defense, envisions using large aircraft or drones to deploy hundreds of small UAVs, which then form an autonomous swarm capable of carrying out complex missions. These small drones are not centrally controlled, but follow common behavioral rules embedded in their software and can adapt to changing environments.

In such cases, a large carrier drone acts as a queen—it delivers the swarm to the desired location, activates it, and provides initial communication. Some projects explore the possibility of the queen continuing to accompany the swarm, adjusting its actions, collecting data, and providing additional energy when needed.

Civilian tasks

Mother drones also have wide civilian applications. In agriculture, for example, a single large drone can transport a swarm of mini-drones to remote fields. There, they disperse, conduct detailed plant health analysis using multispectral cameras, collect air or soil samples, and then return to the mother drone to transmit data and recharge. This significantly speeds up the monitoring process and reduces maintenance costs.

A mother drone can be particularly useful in search and rescue operations. In the event of an accident in a mountainous area or after a natural disaster, when ground access is difficult, a large drone can deliver several lightweight UAVs to the disaster area. They fly off in different directions, scanning the area with thermal imagers, microphones, and cameras. If one detects signs of life, it transmits the coordinates to the mother drone, which can either summon a rescue team or drop emergency supplies—food, water, and a radio beacon—itself.

The mother drone concept opens up new possibilities in logistics and delivery. A large drone can fly from a distribution center to a residential area, and then launch several smaller drones to make home deliveries. This eliminates the need for frequent takeoffs and landings of the larger drone, conserves energy, and reduces noise pollution. After delivery is complete, the smaller drones return to the mother drone, which then returns to its base.

Complexity of creation

Technically, implementing a mother drone requires solving many complex problems. First, it's necessary to ensure physical compatibility—a mechanism for launching and recovering the small drones. This could be a catapult, a hatch, magnetic docking, or a grappling system. Some experimental models use robotic arms to retrieve drones in mid-air, although this is still an extremely complex and energy-intensive operation.

Secondly, an advanced control system is required. The mother drone must simultaneously monitor its own position, track the status of each subordinate drone, plan routes, process data streams, and make decisions in real time. This requires powerful onboard computers, high-precision navigation systems, and artificial intelligence algorithms capable of operating in uncertain conditions.

Third, the energy component is important. Recharging drones in the air is a complex task. Some systems use contact connectors during docking, while others use wireless inductive charging. However, the efficiency of such solutions is still low, and scientists continue to search for ways to increase the speed and capacity of power transfer.

There are various architectures for building such systems. In one configuration, the mother drone is completely autonomous and makes its own decisions about the launch, route, and return of its subordinates. In another, it acts as a relay, transmitting commands from a remote operator. In a third, all drones, including the mother drone, operate in a decentralized network, where any one can temporarily assume the role of coordinator if the primary drone fails.

One example of real-world development is Airbus's "Hover UAV" project, which uses a large helicopter drone to transport and deploy a swarm of smaller UAVs. In the scientific community, universities and research centers are creating prototypes demonstrating the feasibility of automatic docking and recharging in flight.

Safety is another important aspect. Flying a large drone with several others on board or in an escort requires strict adherence to air traffic regulations. The risk of collision, control system failure, or crash during docking remains high. Therefore, such systems are currently primarily used in closed training grounds, military facilities, or specially designated areas.

In the future, we expect the emergence of versatile mother drones capable of adapting to various missions. For example, a modular design will allow for the type and number of subordinate drones to be changed depending on the mission—from cameras and sensors to cargo containers or weapons. Integration with 5G and satellite communication systems will make global swarm control possible.

Scenarios for using mother drones in space are also being considered. For example, an orbital drone station could deliver nanosatellites to their deployment point, launch them, and even reassemble them after the mission. This would reduce the cost of launching the devices into orbit and allow for more efficient constellation management.