Abstract: A flight vehicle according to an aspect includes: a cabin in an airframe; and a plurality of seats arranged in the cabin one-by-one in a row along a front-back direction of the airframe. The seats are each arranged in a position shifted from the center of the airframe widthwise and are oriented in a width direction of the airframe.

Abstract: A seat determination system according to an embodiment is a seat determination system for determining seat assignment of each of a plurality of passengers in an aircraft including a plurality of seats for passengers, including: a weight measuring unit for measuring an on-board weight of each of passengers to board the aircraft, the on-board weight being a weight to be carried by the aircraft; a calculation unit for calculating a center-of-gravity position of the aircraft when the on-board weights of the passengers are assigned to respective seat positions in each of a plurality of estimated seat assignments; and a selection unit for selecting a seat assignment with the center-of-gravity position being within a predetermined range from among the estimated seat assignments.

Abstract: A flight vehicle includes a front rotor on a front part of an airframe, a rear rotor on a rear part of the airframe, a front deflection mechanism that changes an angle of the front rotor with respect to the airframe within a first range, a rear deflection mechanism that changes an angle of the rear rotor with respect to the airframe within a second range, and a main module, which is in the airframe, for containing objects to be transported. The first range is set to a range in which a plane containing the rotation surface of the front rotor does not pass across the main module. The second range is set to a range in which a plane containing the rotation surface of the rear rotor does not pass across the main module.