A passenger aircraft comprising a passenger cabin structure, a standing room area (5) in said passenger cabin structure, at least one passenger stand (3) mounted to said cabin structure in said standing room area (5) having a standing clearance accommodating said at least one passenger stand in which a passenger retains an upright standing position during starting, during flight and during landing of said passenger aircraft in the gravity field of the earth, said passenger stand (3) comprising a passenger upright backing (6,6′,11) for taking up accelerations to which an upright standing passenger in said passenger stand is exposed during said starting, flight, and landing of said passenger aircraft in said gravity field, and a safety device (14) secured to said passenger stand (3) for holding an upright standing passenger in said passenger stand in an upright passenger position during said starting, flight, and landing of said passenger aircraft in said gravity field, whereby a gravity gradient is effectively substantially extending from head to toe of a passenger.