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 . <EOS>