Seat rail and a seat mounting system for an aircraft

A seat mounting system, comprising:

• a seat rail, the seat rail comprising:
• a floor mount portion configured to have a floor of an aircraft mounted thereto;
• an upper flange extending upwards from the floor mount portion and having an upper edge;
• and
• a plurality of heads at the upper edge of the upper flange, the plurality of heads being arranged regularly along a longitudinal direction of the upper flange, the seat mounting system further comprising:
• a seat fitting configured to be coupled with the seat rail,
• wherein the seat fitting comprises a main body having a longitudinally extending void with a cross-section including a horizontal slit and a vertical slit connecting the horizontal slit with a bottom surface of the main body,
• wherein the main body has at least one opening forming an interruption in the vertical slit and connecting the horizontal slit with the bottom surface of the main body,
• wherein each of the at least one opening is configured to receive one of the plurality of heads of the seat rail therethrough, and the vertical slit is configured to receive the upper flange of the seat rail, and
• a locking device configured to lock the seat fitting to the seat rail when some of the plurality of heads of the seat rail are arranged in the horizontal slit of the seat fitting in a manner not entirely overlapping with the at least one opening in the seat fitting,
• wherein the seat fitting comprises a pair of side-by-side though holes separated by a bridge in a top surface of the main body substantially perpendicular to the horizontal slit, and
• wherein the locking device is configured to fit into each through hole in the pair of through holes in the seat fitting between adjacent heads of the plurality of heads, and to lock the seat fitting to the seat rail.