Hamid Tari - Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran
Ali Gheibi - Department of Mechanical Engineering, Univerisity of Kashan, Kashan, Iran
Navid Bagheri - Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran

The quadcopter is a type of multi-rotor that can generate lift power and stay in the sky with ۴ motors.Today, quadcopters and multi-rotors are designed and built in different dimensions and powers and to perform various tasks, one of the most widely used quadcopters. For fun and entertainment, this device is also widely used for aerial photography, which is called a helicopter. In this paper, some of the main factors in the design of a quadcopter are investigated

Quadcopter, multi-rotors, helicopter, aerial photography