Good morning to one and all present here. Today, I will be giving a short speech on the topic of ‘Helicopter’.
Google defines a helicopter to be “a type of aircraft which derives both lift and propulsion from one or more sets of horizontally revolving overhead rotors. It is capable of moving vertically and horizontally, the direction of motion being controlled by the pitch of the rotor blades.”
Simply put, a helicopter is a mode of airway transportation. The word ‘helicopter’ is derived from the Greek terms comes helix and pteron, which mean “spiral” and “wing” respectively. Put together, it refers to an aircraft that operates without wings, obtaining its lift from the rotation of overhead blades. Subsequently, it can be noted that it is also adopted from the French word ‘hélicoptère’. Common synonyms of a helicopter include ‘chopper’, ‘copter’, ‘eggbeater’, ‘whirlybird’, and ‘rotorcraft’.
A helicopter is mainly used for military purposes, especially the search and rescue of people caught in hard-to-reach places.