Source: Liang 2018.Ī quadcopter has four motors that drive four propellers. What are the components of a quadcopter?Īnatomy of a quadcopter.Effectively, all propellers will push air downwards regardless of the direction of rotation. This is solved by having the blades of each diagonal pair of propellers shaped as mirror images of the other pair. The quadcopter will not be able to lift up or fly. When each diagonal pair of propellers rotate in opposite directions, their thrusts will be in opposite directions. Thus, torque from one pair cancels that of the other. Quadcopters solve this by driving two diagonal propellers clockwise and the other two anti-clockwise. Helicopters solve this by using a tail rotor.
When the propellers rotate (for example clockwise), the quadcopter will tend to rotate anti-clockwise. Air movement comes from Bernoulli's Principle, with larger propeller blades and faster rotation creating more thrust. This causes an opposite reaction called thrust that pushes the quadcopter upwards against gravity. A quadcopter's propellers push air downwards. The main principle behind the flight of a quadcopter is Newton's Third Law of motion, which states that for every action there's an equal and opposite reaction. Quadcopter propellers balance torque and provide thrust.
#Variable pitch quad copter how to
Question asks how to control pitch/roll/yaw. Pitch/roll/yaw: video is good but answer text doesn't explain these. Calculating thrust: can't understand the steps: provide an equation. Payload: only first two sentences have a citation. Only first bullet point has a citation.ġ0. Drone parts: why no image for this? It makes sense to talk about parts before talking about design. Motor: how to choose? Frame structure: solid, hollow, lattice, etc.
Battery: weight, power delivery, flight time, recharge time, etc. Propeller: wing size, material, # of propellers, etc. Payload is related to required thrust, which in turn affects propeller design. When it comes to design, choices have to be related to specifications. Does this mean two are spinning CW and other two CCW? Is this always the case? Which two?Ĩ. "Quadcopters have two rotors spinning clockwise (CW) and counterclockwise (CCW)": not clear. Perhaps the placement of the citation can be corrected.ħ. Shouldn't we at least explain in one sentence their application to the quadcopter? For the entire answer, only one citation is given for throttle and elevator. "Newton’s Third Law of motion and other is Bernoullis principle": okay but is this enough. Better to add another source to be sure.Ħ. I checked the cited source but it's not convincing. Not sure if these can be used in a motion/verb sense for quadcopter. Terms "aileron" and "rudder" are actually parts of an aircraft. Pitch and yaw are terms used in this answer but these are introduced much later in the article. Better to rephrase to avoid copyright issues. "V-tail or A-tail is like a Y4 but has much more yaw authority due to it using thrust to turn rather than counter motor torque." Sentence is very similar to the source. Similar problems possibly in other places.Ĥ. Instead move citation to after "shape are as follows:". This implies it's applicable only for that point. : placement of citation is at the end of first bullet point. Use of comma and suffix is to point to a specific section of the reference. Citations are not correct in many places.
If there are problems in Summary, readers will skip the rest of the article.Ģ. Summary: "because of its small size": but previous sentence says it can be "big enough to carry a passenger". Good to see interesting historical photos in Milestones.ġ.
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