Abstract: A flight vehicle, such as a missile, operates both atmospherically and exo-atmospherically. The flight vehicle has control surfaces which are able to rotate relative to a fuselage of the flight vehicle, with the control surfaces extending outside of the fuselage into the airstream (or space) around the fuselage. The control surfaces may be used to control attitude in both atmospheric flight and exo-atmospheric flight. In atmospheric flight the control surfaces operate conventionally, with the aerodynamic forces on the control surfaces creating a torque on the flight vehicle. The control surfaces may be selectively positioned, such as by use of actuators, to achieve the desired torque on the flight vehicle, to achieve the desired attitude. In exo-atmospheric flight the control surfaces can be used as momentum wheels, with the control surfaces selectively rotated to produce a reaction torque on the fuselage.

Abstract: A system for centralized maintenance, intended for an aircraft comprising a set of devices necessary for the flight and able to issue fault messages or alert messages, the maintenance system being able to communicate with this set of devices, comprises a software kernel parametrizable by means of a database of parameters, the software kernel comprising at least four elementary cells: a first cell for acquiring the fault messages and alert messages originating from the set of devices of the aircraft, a second cell for formulating a maintenance diagnosis defined by means of the fault messages and alert messages, a third cell for formulating and displaying a maintenance report to a maintenance operator of the aircraft, defined on the basis of the maintenance diagnosis, a fourth cell for communicating between the maintenance operator and the set of devices of the aircraft.

Abstract: A transportable watercraft stabilization apparatus includes a stability device configured to impart a stabilizing torque to a watercraft when mounted on the watercraft and a transportable containment device containing the stability device therein. The transportable containment device includes a first attachment apparatus for releasably attaching to a transporting means and a second attachment apparatus for releasably attaching to a coupling device onboard a watercraft. Furthermore, the transportable watercraft stabilization apparatus includes a power source configured to provide power to the stability device for generating the stabilizing torque. The watercraft stabilization apparatus is transportable between a first watercraft and a second watercraft for providing on-demand stabilization to the second watercraft.