A feedback ring position detection system for a propeller of an aircraft engine, the propeller rotatable about a longitudinal axis and having an adjustable blade angle, the system comprising: a feedback ring for coupling to a propeller to rotate with the propeller and to be displaced along the longitudinal axis with adjustment of the blade angle, wherein the system further comprises: an engagement member moveably engaging the feedback ring in a channel formed around a circumference of the feedback ring, the engagement member configured to remain retained in the channel as the feedback ring rotates and to be displaced along a longitudinal direction substantially parallel to the longitudinal axis with displacement of the feedback ring; a sensor comprising a stationary sensor member for coupling to an aircraft engine and a moveable sensor member coupled to the feedback ring through the engagement member for displacement along the longitudinal direction with displacement of the feedback ring, the moveable sensor member being moveable relative to the stationary sensor member along the longitudinal direction as the engagement member is displaced, the sensor being configured to generate a sensor signal indicative of a longitudinal position of the moveable sensor member relative to the stationary sensor member; and a controller configured to receive the sensor signal and to determine an axial position of the feedback ring along the longitudinal axis based on the longitudinal position of the moveable sensor member relative to the stationary sensor member as obtained from the sensor signal. a feedback ring for coupling to a propeller to rotate with the propeller and to be displaced along the longitudinal axis with adjustment of the blade angle, wherein the system further comprises: an engagement member moveably engaging the feedback ring in a channel formed around a circumference of the feedback ring, the engagement member configured to remain retained in the channel as the feedback ring rotates and to be displaced along a longitudinal direction substantially parallel to the longitudinal axis with displacement of the feedback ring; a sensor comprising a stationary sensor member for coupling to an aircraft engine and a moveable sensor member coupled to the feedback ring through the engagement member for displacement along the longitudinal direction with displacement of the feedback ring, the moveable sensor member being moveable relative to the stationary sensor member along the longitudinal direction as the engagement member is displaced, the sensor being configured to generate a sensor signal indicative of a longitudinal position of the moveable sensor member relative to the stationary sensor member; and a controller configured to receive the sensor signal and to determine an axial position of the feedback ring along the longitudinal axis based on the longitudinal position of the moveable sensor member relative to the stationary sensor member as obtained from the sensor signal. an engagement member moveably engaging the feedback ring in a channel formed around a circumference of the feedback ring, the engagement member configured to remain retained in the channel as the feedback ring rotates and to be displaced along a longitudinal direction substantially parallel to the longitudinal axis with displacement of the feedback ring; a sensor comprising a stationary sensor member for coupling to an aircraft engine and a moveable sensor member coupled to the feedback ring through the engagement member for displacement along the longitudinal direction with displacement of the feedback ring, the moveable sensor member being moveable relative to the stationary sensor member along the longitudinal direction as the engagement member is displaced, the sensor being configured to generate a sensor signal indicative of a longitudinal position of the moveable sensor member relative to the stationary sensor member; and a controller configured to receive the sensor signal and to determine an axial position of the feedback ring along the longitudinal axis based on the longitudinal position of the moveable sensor member relative to the stationary sensor member as obtained from the sensor signal.