A rotorcraft , comprising: a floor panel comprising a plurality of puck attachment mechanisms , each puck attachment mechanism comprising: a first cup-shaped portion and a second cup shaped portion, wherein the first cup shaped portion comprises a first flange and the second cup-shaped portion comprises a second flange , wherein the first cup shaped portion and the second cup shaped portion are separable, the first flange and the second flange are coupled together when the attachment mechanism is installed in the floor panel , and the first cup-shaped portion further comprises a third flange and the second cup-shaped portion further comprises a fourth flange, the third and fourth flanges being configured to engage with opposing outer surfaces of the floor panel when the attachment mechanism is installed in the floor panel , wherein the third and fourth flanges extend at 90 degrees to a longitudinal axis of the attachment mechanism and are circumferentially continuous; and an attachment point ; a plurality of passenger seats comprising seat attachment points coupled to the attachment points of a subset of the puck attachment mechanisms of the floor panel , wherein: the plurality of passenger seats is arranged into a plurality of seating rows; and the plurality of passenger seats comprises one or more foldover seats arranged to facilitate access to one or more exits of the rotorcraft. a floor panel comprising a plurality of puck attachment mechanisms , each puck attachment mechanism comprising: a first cup-shaped portion and a second cup shaped portion, wherein the first cup shaped portion comprises a first flange and the second cup-shaped portion comprises a second flange , wherein the first cup shaped portion and the second cup shaped portion are separable, the first flange and the second flange are coupled together when the attachment mechanism is installed in the floor panel , and the first cup-shaped portion further comprises a third flange and the second cup-shaped portion further comprises a fourth flange, the third and fourth flanges being configured to engage with opposing outer surfaces of the floor panel when the attachment mechanism is installed in the floor panel , wherein the third and fourth flanges extend at 90 degrees to a longitudinal axis of the attachment mechanism and are circumferentially continuous; and an attachment point ; a first cup-shaped portion and a second cup shaped portion, wherein the first cup shaped portion comprises a first flange and the second cup-shaped portion comprises a second flange , wherein the first cup shaped portion and the second cup shaped portion are separable, the first flange and the second flange are coupled together when the attachment mechanism is installed in the floor panel , and the first cup-shaped portion further comprises a third flange and the second cup-shaped portion further comprises a fourth flange, the third and fourth flanges being configured to engage with opposing outer surfaces of the floor panel when the attachment mechanism is installed in the floor panel , wherein the third and fourth flanges extend at 90 degrees to a longitudinal axis of the attachment mechanism and are circumferentially continuous; and an attachment point ; a plurality of passenger seats comprising seat attachment points coupled to the attachment points of a subset of the puck attachment mechanisms of the floor panel , wherein: the plurality of passenger seats is arranged into a plurality of seating rows; and the plurality of passenger seats comprises one or more foldover seats arranged to facilitate access to one or more exits of the rotorcraft. <EOS>