A seating system for a vehicle, wherein the vehicle comprises floor beams which support floor panels that define a floor surface, the vehicle having a virtual longitudinal plane perpendicular to the floor surface, and a virtual longitudinal axis parallel to the floor surface and lying in the virtual longitudinal plane, the seating system comprising: a primary pair of seat tracks, wherein seat tracks of the primary pair of seat tracks comprise first portions and second portions oblique relative to the first portions; a secondary pair of seat tracks, one of which is positioned between the seat tracks of the primary pair of seat tracks, and wherein the first portions of the seat tracks of the primary pair of seat tracks are parallel to seat tracks of the secondary pair of seat tracks; a first seat assembly comprising a first seat support and a first plurality of seats attached to the first seat support and arranged along a first row-axis, and wherein the first seat support is attached to the primary pair of seat tracks; a second seat assembly comprising a second seat support and a second plurality of seats attached to the second seat support and arranged along a second row-axis that is parallel to the first row-axis, wherein the second seat support is attached to the secondary pair of seat tracks such that the second row-axis is configured to be perpendicular to the virtual longitudinal plane of the vehicle; and a third seat assembly attached to the primary pair of seat tracks, wherein: at least a portion of the second seat assembly is positioned between the first seat assembly and the third seat assembly, the third seat assembly comprises a third plurality of seats, and seats in the third plurality of seats are arranged along a third row-axis, configured to be oblique to the virtual longitudinal plane of the vehicle. a primary pair of seat tracks, wherein seat tracks of the primary pair of seat tracks comprise first portions and second portions oblique relative to the first portions; a secondary pair of seat tracks, one of which is positioned between the seat tracks of the primary pair of seat tracks, and wherein the first portions of the seat tracks of the primary pair of seat tracks are parallel to seat tracks of the secondary pair of seat tracks; a first seat assembly comprising a first seat support and a first plurality of seats attached to the first seat support and arranged along a first row-axis, and wherein the first seat support is attached to the primary pair of seat tracks; a second seat assembly comprising a second seat support and a second plurality of seats attached to the second seat support and arranged along a second row-axis that is parallel to the first row-axis, wherein the second seat support is attached to the secondary pair of seat tracks such that the second row-axis is configured to be perpendicular to the virtual longitudinal plane of the vehicle; and a third seat assembly attached to the primary pair of seat tracks, wherein: at least a portion of the second seat assembly is positioned between the first seat assembly and the third seat assembly, the third seat assembly comprises a third plurality of seats, and seats in the third plurality of seats are arranged along a third row-axis, configured to be oblique to the virtual longitudinal plane of the vehicle. at least a portion of the second seat assembly is positioned between the first seat assembly and the third seat assembly, the third seat assembly comprises a third plurality of seats, and seats in the third plurality of seats are arranged along a third row-axis, configured to be oblique to the virtual longitudinal plane of the vehicle.