Helicopter rotor
A rotor is the rotating part of a helicopter which generates lift, either vertically in the case of a main rotor, or horizontally in the case of a tail rotor.
History and development
Before the development of powered helicopters in the mid 20th century, autogyro pioneer Juan de la Cierva researched and developed many of the basics of the rotor. Cierva is credited with successful development of multi-bladed, fully articulated rotor systems. This type of system is widely used today in many multi-bladed helicopters.
Helicopter Rotor Media
A Bell AH-1 SuperCobra with a semirigid rotor system
Diagram of fully articulated main rotor head
A Bell 205 with a semirigid rotor and stabilizer bar
A semirigid rotor head with a flybar
Antitorque: torque effect on a helicopter
Tail of an EC120 helicopter
Belgium Police 520N helicopter
A U.S. Army CH-47 Chinook helicopter assigned to the 10th Combat Aviation Brigade, flies a personnel and equipment movement mission over Ghazni province, Afghanistan, Sept. 22, 2013. The CH-47 is the U.S. Army's premiere heavy lift that assists and plays a critical role in transporting troops and equipment around the battlefield. (U.S. Army photo by Capt. Peter Smedberg/Released)
Kamov Ka-50 of the Russian Air Force, with coaxial rotors
de Bothezat helicopter, 1923 photo
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