Ads
related to: difference between quadcopter and hex plus
Search results
Results from the WOW.Com Content Network
A quadcopter, also called quadrocopter, or quadrotor [1] is a type of helicopter or multicopter that has four rotors. [ 2 ] Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern unmanned aerial vehicle or drone.
Any rotor system has a delay between the point in rotation where the controls introduce a change in pitch and the point where the desired change in the rotor blade's flight occurs. This difference is caused by phase lag, often confused with gyroscopic precession. A rotor is an oscillatory system that obeys the laws that govern vibration—which ...
The difference between these two vectors is the wind acting on the aircraft. [13] Deriving winds (and temperatures from the Mach number and true airspeed) was developed simultaneously by Siebren de Haan of the KNMI and Edmund Stone of the Met Office. [14]
Multirotor type unmanned aerial vehicles exist in numerous configurations including duocopter, [5] tricopter, quadcopter, hexacopter and octocopter. All of them can be upgraded to coaxial configuration in order to bring more stability and flight time while allowing carrying much more payload without gaining too much weight.
The Netra is a lightweight UAV, manufactured by carbon fiber composites, that uses quadcopters to provide lift and control giving a VTOL capability. It has no moving parts other than the rotors, motors and transmissions, and hence it requires very low maintenance.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
Disk loading of a hovering helicopter is the ratio of its weight to the total main rotor disk area. It is determined by dividing the total helicopter weight by the rotor disk area, which is the area swept by the blades of a rotor.
It has a conventional helicopter configuration, with a three-bladed main rotor with a diameter of 7.2 meters (24 feet), an enclosed "fenestron" tail rotor favored by the French, and landing skips. There is a sensor turret under the nose and an antenna or sensor drum under the belly between the landing skids.
Ads
related to: difference between quadcopter and hex plus