Methods for arranging passenger seats and passenger service units in aircraft cabins

A method for arranging a set of passenger seats, comprising a passenger seat, and a set of passenger service units, comprising a passenger service unit;

• in an aircraft cabin;
• comprising a seat rail, the method comprising:
• aligning a support fitting of the passenger seat with a first receiver of a receiver set on the seat rail,
• wherein the seat rail comprises a first marker set, each identifying one receiver in the receiver set such that any two adjacent markers in the first marker set are spaced apart by a first seat pitch, and
• wherein the first receiver is identified by a first marker of the first marker set;
• positioning a locating device on the passenger seat such that a device reference point of the locating device coincides with a seat cushion reference point of the passenger seat and such that a device datum of the locating device is positioned on and in contact with a seat cushion of the passenger seat;
• and
• using a front locator of the locating device, determining a first front reference in an overhead compartment for installing the passenger service unit, corresponding to the passenger seat,
• wherein the first front reference depends on a first angle between the device datum and the front locator, and
• wherein the first angle is selected based on a distance between the device datum and the passenger service unit and further based on the first seat pitch.