Abstract: A suction dart target game system includes a throwing member with a central protrusion, and first and second throwing suction cups; and a target piece with a first target suction cup; such that the target piece is attached to a mounting structure, such that a user can throw the throwing member at the target piece from a distance, optionally such that the throwing member rotates in flight, such that either the first throwing suction cup or the second throwing suction cup attaches to the first or second target suction cup or to a surface area of the mounting structure adjacent to the target piece, if a throw is successful. Also disclosed is a suction dart target game method, including positioning a target piece, throwing a throwing member, and measuring a distance.

Abstract: A suction dart target game system includes a throwing member with a central protrusion, and first and second suction cups; and a target marker with a target suction cup; such that the target marker is attached to a mounting structure, such that a user can throw the throwing member at the target marker from a distance, such that the throwing member rotates in flight, such that either the first suction cup or the second suction cup attaches to a surface area of the mounting structure adjacent to the target marker, if a throw is successful. Also disclosed is a suction dart target game method, including positioning a target marker, throwing a throwing member, and measuring a distance.

Abstract: A method includes receiving characteristic information from a sensor. The characteristic information may be representative of a characteristic of a weight bearing structure of an aircraft when a force is applied to the weight bearing structure. The method includes determining a weight of the aircraft based on the characteristic information. The method includes receiving attitude information from an attitude sensor. The attitude information indicates whether the aircraft is situated on a level surface. The method includes determining a balance condition based on the attitude information and the weight of the aircraft. The balance condition indicates whether the weight of the aircraft is distributed evenly. The method includes generating an alert when the balance condition indicates that the weight of the aircraft is not distributed evenly.

Abstract: A method includes receiving characteristic information from a sensor. The characteristic information may be representative of a characteristic of a weight bearing structure of an aircraft when a force is applied to the weight bearing structure. The method includes determining a weight of the aircraft based on the characteristic information.