Helikoptern
Helikoptern is the plural form of the German noun Helikopter and is used to describe helicopters in general. A Helikopter is a rotary‑wing aircraft that can take off and land vertically, hover, and fly in forward or lateral directions. Lift is produced by rotating blades, typically driven by one or more engines. Most conventional designs use a main rotor on top and a smaller tail rotor to counteract the torque of the main rotor, but there are alternative configurations such as tandem rotors, coaxial rotors, and intermeshing rotors that suit different missions and weight ranges.
Common uses of Helikoptern include civil applications such as emergency medical services, search and rescue, law
Performance and operation depend on factors such as rotor design, engine power, altitude, and weather. Rotorcraft