HELICOPTER

Etymology

The word 'helicopter' is derived from the Greek words 'helix' meaning spiral or twist, and 'pteron' meaning wing.

Definition

A helicopter is a type of aircraft that achieves lift and propulsion through one or more powered rotors turning about vertical axes. It is a versatile flying machine capable of vertical takeoff and landing.

Historical Context

The concept of a helicopter dates back to the 15th century, with Leonardo da Vinci's sketches of an 'aerial screw.' The modern helicopter was developed in the 20th century, with significant advancements in design and technology.

Cultural Significance

Helicopters play crucial roles in various fields, including military operations, search and rescue missions, medical transport, and commercial aviation. They are iconic symbols of innovation and versatility in aviation.

Related Concepts

Helicopters are related to other rotorcraft such as autogyros and tiltrotors. They share similarities in their vertical takeoff and landing capabilities but differ in their rotor configurations and flight characteristics.

See Also

• Autogyro
• Tiltrotor
• Aircraft