A flexible cover includes a main layer made of a first composite material that includes a first woven material and a first elastomer. The flexible cover also includes an auxiliary layer made of a second composite material that includes a second woven material and a second elastomer. The auxiliary layer is secured to a face of the main layer and includes petal-shaped regions that are separated from one another by weakening lines.

A flexible cover includes a main layer made of a first composite material that includes a first woven material and a first elastomer. The flexible cover also includes an auxiliary layer made of a second composite material that includes a second woven material and a second elastomer. The auxiliary layer is secured to a face of the main layer and includes petal-shaped regions that are separated from one another by weakening lines.

A launcher device for launching ammunition or weapons provided with primers, contains a plurality of launch tubes combined so as to form a launcher battery. Each of the launch tubes is loaded with ammunition or a weapon, and each of the launch tubes is closed off by a cover. A device is provided for detecting damage to the covers closing off the launch tubes.

A launcher device for launching ammunition or weapons provided with primers, contains a plurality of launch tubes combined so as to form a launcher battery. Each of the launch tubes is loaded with ammunition or a weapon, and each of the launch tubes is closed off by a cover. A device is provided for detecting damage to the covers closing off the launch tubes.

Disclosed is an ordnance-launching tube, including a rear door and an expulsion circuit between a source of pressurized fluid and the tube, and provided with a unit for closing this circuit having an actuator that can be maneuvered by an operator in order to permit the expulsion, the actuator being associated with a detector for the presence of the rear door in the tube-closing position and with a lock for this rear door in the tube-closing position, which can be actuated via a bolt that the operator can move between a first position preventing expulsion and a second position permitting expulsion when the door is in the closing position and locked. The bolt includes an abutment movable between a position blocking the actuator in position to prevent expulsion, and a position releasing the actuator so that they may be actuated by the operator, and thus permit expulsion.

Disclosed is an ordnance-launching tube, including a rear door and an expulsion circuit between a source of pressurized fluid and the tube, and provided with a unit for closing this circuit having an actuator that can be maneuvered by an operator in order to permit the expulsion, the actuator being associated with a detector for the presence of the rear door in the tube-closing position and with a lock for this rear door in the tube-closing position, which can be actuated via a bolt that the operator can move between a first position preventing expulsion and a second position permitting expulsion when the door is in the closing position and locked. The bolt includes an abutment movable between a position blocking the actuator in position to prevent expulsion, and a position releasing the actuator so that they may be actuated by the operator, and thus permit expulsion.

A flexible cover comprising at least one, so-called composite, layer, formed from a composite material consisting of at least one fabric and at least one elastomer and a flat metal blade secured to the composite layer by elastomer and comprising pre-cut lines for fragilisation of the flexible cover, the pre-cut lines being arranged so as to create areas in the form of petals, the composite layer and the metal blade being designed so as to return to an initial position once the flexible cover has been opened.

A flexible cover comprising at least one, so-called composite, layer, formed from a composite material consisting of at least one fabric and at least one elastomer and a flat metal blade secured to the composite layer by elastomer and comprising pre-cut lines for fragilisation of the flexible cover, the pre-cut lines being arranged so as to create areas in the form of petals, the composite layer and the metal blade being designed so as to return to an initial position once the flexible cover has been opened.

This disclosure describes various techniques and systems for rapid low-cost access to suborbital and orbital space and accommodation of acceleration of sensitive payloads to space. For example, a distributed gas injection system may be used in a ram accelerator to launch multiple payloads through the atmosphere. Additionally or alternatively, multiple projectiles may assemble during flight through the atmosphere to transfer and/or resources to another projectile.

The invention relates to a missile (1) for intercepting alien drones (21), comprising a capturing net (9) and a parachute (18), wherein a plurality of weights (15) are connected to the capturing net (9), wherein the capturing net (9) can be ejected from the missile (1) and the weights (15) can be ejected from the missile (1). The capturing of the alien drone is improved by the fact that the capturing net (9) can be ejected by a first means and the weights (15) can be ejected by a second means, wherein the weights (15) and the capturing net (9) can be ejected at different times from the missile (1).