Vertical takeoff refers to the ability of an aircraft to ascend straight up into the air without needing a runway. This capability is primarily found in certain types of aircraft, such as helicopters and VTOL (Vertical Takeoff and Landing) jets. These vehicles use specialized designs and propulsion systems to lift off vertically, making them suitable for operations in confined spaces. The technology behind vertical takeoff allows for greater flexibility in flight operations. It enables aircraft to land and take off in areas where traditional runways are not available, such as urban environments or remote locations. This feature is particularly beneficial for military operations and search and rescue missions.