Abstract: The invention relates to releasing a fluid medium from cargo and specialised airplanes, mainly for fighting large-scale forest fires and the similar by water or extinguishing agents. The inventive method consists in expelling said fluid medium from an on-board container by imparting to said medium a speed relative to the aircraft speed, preferably equal or opposite thereto. The fluid medium expel from the container is carried out by means of an expelling device which is exposed to the action of the aerodynamic force of an incoming air stream produced by the aircraft movement. The container is embodied in the form of an elongated tank (one or two) comprising a conical nozzle and a cylindrical input pipe provided with a valve. The piston-shaped expelling means is embodied in the form of a watertight parachute which is connected to a pilot chute by a flexible rod through an exhaust pipe.

Abstract: The invention relates to aircraft equipment, namely to means for cargo disposition in an aircraft and for jettison thereof without parachuting. The inventive device comprises pallets arranged in the cargo section of the aircraft means for fixing cargo on the pallets and for fixing pallets prior to the jettison position thereof. Each cargo fixing means is embodied in the form of two clamp strips embracing the cargo packages (sacks or nets) stacked on the pallet on a vertical plane and on a parallel direction with respect to the longitudinal axis of the aircraft. Said strips are separate from each other and from the pallet with lower part thereof and connected to each other on the top of the cargo by means of a transverse draft. Said pallets are placed along the longitudinal axis of the aircraft in guides and are displaceable by gravity and/or inertia to the jettison position thereof.