how we can modify a quadcopter or changes in a quadcopter for project work ?
plz answer frnds .
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Answer:
A quadcopter, also called a quadrotor helicopter or quadrotor,[1] is a multirotor helicopter that is lifted and propelled by four rotors. Quadcopters are classified as rotorcraft, as opposed to fixed-wing aircraft, because their lift is generated by a set of rotors (vertically oriented propellers).
Quadcopters generally use two pairs of identical fixed pitched propellers; two clockwise (CW) and two counterclockwise (CCW). These use independent variation of the speed of each rotor to achieve control. By changing the speed of each rotor it is possible to specifically generate a desired total thrust; to locate for the centre of thrust both laterally and longitudinally; and to create a desired total torque, or turning force.[2]
Quadcopters differ from conventional helicopters, which use rotors that are able to vary the pitch of their blades dynamically as they move around the rotor hub. In the early days of flight, quadcopters (then referred to either as 'quadrotors' or simply as 'helicopters') were seen as possible solutions to some of the persistent problems in vertical flight. Torque-induced control issues (as well as efficiency issues originating from the tail rotor, which generates no useful lift) can be eliminated by counter-rotation, and the relatively short blades are much easier to construct. A number of manned designs appeared in the 1920s and 1930s. These vehicles were among the first successful heavier-than-air vertical take off and landing (VTOL) vehicles.[3] However, early prototypes suffered from poor performance,[3] and latter prototypes required too much pilot work load, due to poor stability augmentation[4] and limited control authority.
ғʟɪɢʜᴛ ᴄᴏɴᴛʀᴏʟʟᴇʀ ɪᴛ ʜᴀs sᴇᴠᴇʀᴀʟ ɪɴᴘᴜᴛs, ᴏᴜᴛᴘᴜᴛs ᴀɴᴅ sᴇɴsᴏʀs ᴛᴏ ᴄᴏɴᴛʀᴏʟ ʏᴏᴜʀ ϙᴜᴀᴅᴄᴏᴘᴛᴇʀ. ᴛʜᴇ ɢʏʀᴏsᴄᴏᴘᴇ ᴏɴʟʏ ᴍᴇᴀsᴜʀᴇs ᴄʜᴀɴɢᴇs ɪɴ ᴛʜᴇ ᴀɴɢʟᴇs. ᴛʜɪs ɪs ʀᴇϙᴜɪʀᴇᴅ ғᴏʀ ʟᴇᴠᴇʟɪɴɢ ᴏᴜᴛ ʏᴏᴜʀ ϙᴜᴀᴅᴄᴏᴘᴛᴇʀ. ᴛʜᴇ ᴀᴄᴄᴇʟᴇʀᴏᴍᴇᴛᴇʀ ᴍᴇᴀsᴜʀᴇs ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴛʜᴇ ϙᴜᴀᴅᴄᴏᴘᴛᴇʀ ɪs ɢᴏɪɴɢ.