Blade pitch detection for an aerial vehicle

A rotor blade pitch detection apparatus for an aircraft, the rotor blade pitch detection apparatus comprising:

• a magnet coupled to a movable component of a blade pitch adjustment linkage for a plurality of rotor blades of a rotor of the aircraft, the movable component having a first orientation while the plurality of rotor blades are at a first blade pitch and a second orientation while the plurality of rotor blades are at a second blade pitch;
• a sensor coupled to the aircraft and configured to generate a signal in the presence of the magnet, wherein:
• when the movable component is in the first orientation, the magnet repeatedly triggers the sensor to generate the signal while the rotor is rotating, and
• when the movable component is in the second orientation, the magnet does not trigger the sensor while the rotor is rotating;
• and
• processing circuitry in communication with the sensor and configured to determine whether the plurality of rotor blades are at the first blade pitch or the second blade pitch based on signals received from the sensor.