Roll, pitch, yaw, and the mixer
1.[1p] To make a quadcopter climb straight up without tilting, the mixer should
To make a quadcopter climb straight up without tilting, the mixer should
The answer is: increase all four motor speeds equally
The answer is: increase all four motor speeds equally
The answer is: increase all four motor speeds equally
2.[2p] Yaw is commanded by unbalancing the reaction torques rather than the thrusts, which is why
Yaw is commanded by unbalancing the reaction torques rather than the thrusts, which is why
The answer is: yaw is the weakest and slowest of the three rotations
The answer is: yaw is the weakest and slowest of the three rotations
The answer is: yaw is the weakest and slowest of the three rotations
3.[2p] A pure roll command adds thrust to one side and removes an equal amount from the other, so the total thrust and the height are barely changed.
A pure roll command adds thrust to one side and removes an equal amount from the other, so the total thrust and the height are barely changed.
The answer is: True
4.[2p] A quadcopter hovers with all motors at 1500 on a 1000 to 2000 scale. The pilot commands a nose-down pitch of 120 units and nothing else. What value do the two rear motors take?
A quadcopter hovers with all motors at 1500 on a 1000 to 2000 scale. The pilot commands a nose-down pitch of 120 units and nothing else. What value do the two rear motors take?
5.[2p] Motor saturation limits a quadcopter's control authority most severely when
Motor saturation limits a quadcopter's control authority most severely when
The answer is: it is flying near full throttle, leaving no headroom to add for a rotation
The answer is: it is flying near full throttle, leaving no headroom to add for a rotation
The answer is: it is flying near full throttle, leaving no headroom to add for a rotation
6.[2p] The mixer alone cannot keep a quadcopter level because
The mixer alone cannot keep a quadcopter level because
The answer is: it applies fixed arithmetic and has no measurement of the craft's actual attitude
The answer is: it applies fixed arithmetic and has no measurement of the craft's actual attitude
The answer is: it applies fixed arithmetic and has no measurement of the craft's actual attitude
7.[3p] Match each pilot command to how the mixer produces it.
Match each pilot command to how the mixer produces it.
Throttle
Pitch
Roll
Yaw
speed one side and slow the other
speed one spin direction and slow the other
speed the rear pair and slow the front pair
raise all four motors equally
Show the answer
Throttle: raise all four motors equally Pitch: speed the rear pair and slow the front pair Roll: speed one side and slow the other Yaw: speed one spin direction and slow the other