In this blog post, we’ll examine the concept, forms, applications, market growth potential, and safety and security issues surrounding drones, which are increasingly being used in both everyday life and industrial settings.
What are drones, and why are they gaining attention?
Recently, it’s become common to see coverage of drones, or unmanned aerial vehicles (UAVs), on TV and in numerous other media outlets. Major world powers are leading the way in drone development, and drones have now become a technology that is easily visible not only in industrial settings but also in everyday life. In 2014, the U.S.-based Teal Group projected that the global unmanned aerial vehicle market would reach $91 billion over the next 10 years, but that forecast differs from the current market reality. According to the Teal Group’s latest 2025/2026 Civil Unmanned Aerial Systems (UAS) Forecast, the civil UAS market is projected to grow from $10.8 billion in 2025—based on the market value of the aircraft themselves—to $22.4 billion in 2034, reaching a cumulative total of $178 billion over the next decade. In addition, as the use of drones has expanded in various countries recently, regulations for safety and airspace management are also being established. What exactly are drones, and how are they being utilized in our daily lives and industries to warrant such sustained attention?
What is the structure and form of a drone?
First, a drone generally refers to an unmanned aerial vehicle that is either remotely piloted or flies autonomously without a human onboard. As mechanical devices that fly without a human onboard to perform specific tasks, they incorporate various components—such as motors, flight controllers, and Global Positioning Systems (GPS)—depending on the type and intended use of the aircraft. The flight controller regulates the motors and other systems to maintain the aircraft’s attitude and flight status in a stable manner. Thanks to these characteristics, drones have a very broad range of applications and can be manufactured in various forms depending on their purpose.
Drones can be broadly classified by their flight mechanism into rotorcraft drones, fixed-wing drones, and tilt-rotor drones. Rotorcraft drones are the most common type seen in everyday life; they fly using thrust generated by propellers mounted on a rotating shaft. Depending on the number of propellers, they can be classified as tricopters, quadcopters, and so on. The advantages of this design include the ability to take off and land vertically, change direction freely, and hover—that is, remain stationary in the air at a constant altitude. On the other hand, they have the disadvantages of relatively slow flight speeds and short flight times, and are at a disadvantage compared to fixed-wing drones when it comes to high-altitude or long-distance flights.
Fixed-wing drones are designed with wings attached to the fuselage, resembling the airplanes commonly seen in everyday life. Fixed-wing drones are used not only in the military sector but also in various fields such as surveying, observation, and mapmaking. The advantages of the fixed-wing design include the ability to fly for relatively long periods and its suitability for high-altitude and high-speed flight. On the other hand, it requires a certain amount of space for takeoff and landing, and it is difficult to hover in one spot like a rotorcraft drone.
The tiltrotor design features propellers mounted on the wingtips or similar locations, allowing the direction of thrust to be switched depending on flight conditions, thereby combining the characteristics of both fixed-wing and rotorcraft drones. Its advantages include long flight times, high speeds, flight at high altitudes, and vertical takeoff and landing; it is characterized by its ability to combine the strengths of both rotary-wing and fixed-wing systems. On the other hand, its propulsion system and flight control mechanisms are relatively complex, and manufacturing and operating costs can be higher. In particular, because it must combine the characteristics of both fixed-wing and rotary-wing systems into a single airframe, its structure and operation are more complex than those of the common rotary-wing drones often seen in everyday life.
In what fields are drones being used?
By leveraging these forms and their respective advantages and disadvantages, drones are utilized as a single platform across a very wide range of fields. Simply put, they are equipped with various computers, sensors, and communication equipment to perform diverse tasks in the air. One of the most prominent fields is the military. Because drones can collect enemy intelligence or carry out surveillance and reconnaissance missions without deploying personnel directly into dangerous areas, many countries—including the United States—have long utilized the military advantages of drones in their operations. A prime example is the MQ-1 Predator. Furthermore, in fields such as agriculture, construction sites, video production, facility inspections, and communications network deployment, drones’ speed and maneuverability allow them to perform tasks that would be difficult or dangerous for humans to carry out directly. Several companies, including the U.S. firm Amazon, are utilizing drones for package delivery and the delivery of relief supplies; in fact, Amazon Prime Air is currently operating a commercial drone delivery service in the United States. Recently, the DIY (Do It Yourself) trend in drone construction has gained traction, creating an environment where anyone can build or modify a drone on their own. By equipping drones with microcontroller boards such as Arduino, users can program them to perform specific tasks. Using these microcontrollers along with simple sensors like cameras, it is also possible to collect and process necessary information from the drone.
How are regulations changing alongside the growth of the drone market?
As drones continue to pioneer the market with these various advantages, they are creating new aerial security challenges that are difficult to address with existing security measures alone, thereby increasing the need for new regulations and systems. Because drones are small, move quickly, and can fly freely through the air, there are limitations to preventing trespassing on private property or access to specific areas simply by restricting their flight zones. Furthermore, given the potential for drones to be misused—such as by carrying weapons or conducting covert surveillance and reconnaissance—an anti-drone market has emerged to address these threats. In fact, in January 2015, a small quadcopter flew into the grounds of the White House and crashed; this incident garnered significant attention as a case illustrating the aerial security vulnerabilities posed by drones at the time. Since then, the importance of anti-drone technology—which detects or neutralizes drones—has grown significantly, and the use of such technology has expanded at major international events and security operations.
As such, while drones provide convenience, they can also cause safety accidents and security issues, raising the need for corresponding regulations and accountability. In fact, drones are manufactured in a wide variety of sizes and shapes—ranging from small devices the size of a palm to those exceeding 1 meter in length—and can cause significant impact depending on their weight and the height from which they fall, making them a serious threat based on physical danger alone. In South Korea, flying drones is not unrestricted; flight authorization is required in certain airspaces, such as restricted airspace or air traffic control zones, and is also required for flights above a certain altitude. Currently, South Korea’s Aviation Safety Act stipulates a flight authorization system for ultralight aircraft in restricted airspace, air traffic control zones, and air traffic management zones. Users can apply for flight authorizations and related services, such as aerial photography, through the Drone One-Stop Public Service Portal. Therefore, as with all new knowledge and technologies, drones can be described as a double-edged sword—a technology whose outcomes depend on how humans choose to use them. If we fully recognize this, drones remain a technology capable of exploring new possibilities across various fields and will continue to serve as a platform for pioneering new markets in the future.
