RU204566U1 - LOADING CHUTE - Google Patents

Abstract

The utility model relates to means for airborne cargo in flight from aircraft not equipped with roller tracks, manually during rescue operations. The chute for airborne cargo is mounted on wheels, has a coating of a material with a low coefficient of friction, and with its help, it is possible to safely drop 2-3 stacks with a load at the same time, in accordance with the restrictions on the centering and carrying capacity of aircraft. The chute consists of two cradles, on which, in fact, the chute is fixed, to which two pairs of wheels are attached. The front wheels rotate only around the horizontal axis, and the rear wheels also rotate around the vertical axis, which simplifies the movement of the chute inside the aircraft cabin. A loop is attached to the front cradle for connecting a safety line, which is attached to the side of the aircraft. At the back of the chute there are two handles to control the chute. The front lodgment with wheels is located at a distance of 0.35-0.4 of the length of the chute. 2 ill.

Description

The utility model relates to means for airborne cargo in flight from aircraft not equipped with roller tracks, manually during rescue operations.

Rescue operations, in which it is necessary to deliver goods by parachute or non-parachute landing, are usually carried out outside the range of helicopters, where landing of aircraft is impossible. The landing is often carried out in low cloud cover and poor visibility. In such conditions, the use of heavy aircraft with high speed and equipped with roller tracks is difficult. The most suitable for manual landing are the old proven An-2 and An-28.

Known devices for the landing of goods (patent RU 2304547, published on 08/20/2007; patent RU 2677803, published on 01/21/2019; patent RU 184125, published on 10/16/2018), in which the basis for the placement and landing of goods are pallets of various designs. Common to them is: placement on roller tracks with the ability to move under the action of the horizontal component of gravity and / or inertial force along the longitudinal axis of the aircraft.

Their disadvantages are that not all aircraft have roller tracks, 4 and 3 class aircraft do not have them, and such pallets are not intended for landing through the side door of the aircraft.

In clause 6.1.12 RVD-99 [1] it is said: “Dropping of cargoes manually is carried out as follows: upon the command“ Prepare ”, the cargo, prepared for dropping, moves out of the aircraft door by 1/3 of its length. At the command “Dump”, the load is pushed overboard with a sharp movement ”. Disadvantages: you have to manually drag the load to the door and throw it away, which is not easy with the weight of the PDMM-47 [2] or KAS-150 [3] stacks. The bottom of them is a shock absorber and a float chamber, so that the bulk of the weight remains in the cockpit. When a paratrooper is also wearing his parachutes, this is a big load. When the cargo is thrown overboard, it clings to the door sill, and at a flight speed of over 180 km / h, the cargo slides along the side of the aircraft and there is a possibility that the parachute canopy will catch on the tail wheel of the landing gear. This negatively affects the accuracy and safety of the landing. Only one stack can be dropped at a time in this way.

The task of the proposed device is to reduce the load on the paratroopers, increase the productivity, accuracy and safety of the landing.

The technical result is achieved by the fact that the chute for airborne cargo is mounted on wheels, has a coating made of a material with a low friction coefficient and with its help it is possible to simultaneously safely drop 2-3 of the aforementioned stacks, in accordance with the restrictions on the centering and carrying capacity of aircraft.

FIG. 1 shows the structure of the trough.

The chute for landing cargo consists of two cradles 1, on which, in fact, the chute 2 is fixed, to which two pairs of wheels are attached. The front 3 rotate only around the horizontal axis, and the rear 4 also rotate around the vertical axis, which simplifies the movement of the chute inside the aircraft cabin. A loop 5 is fixed on the front lodgment for connecting a safety line 6, which is attached to the side of the aircraft 7. There are two handles 8 behind the chute to control the chute. The front lodgment with wheels 3 is located at a distance of 0.35 - 0.4 of the length of the groove. The means for mooring the loaded chute in the aircraft cockpit are not shown as they are known.

In preparation for flight, the chute is installed and moored in the aircraft cockpit. 2-3 airborne stacks of 9 cargo are placed on it. The center of gravity (CG) of the stowages is located behind the axle of the front pair of wheels. The carabiners of the hauling ropes of the 10 parachute systems of 11 stowages are hooked onto the landing rope 12 of the aircraft. At the command "Prepare", the mooring lines are unhooked, and the chute rolls up to the aircraft door until the wheels 3 stop in the door sill (the length of the safety line is calculated for the same distance). On command “Dump” the rear part of the chute is lifted and the load slides overboard. At the same time, it moves farther from the side of the aircraft, which excludes the canopy of the parachute system from getting caught in the tail of the aircraft. Since the center of gravity of the load is closer to the axis of rotation of the front wheels, less effort is required to tilt the load than when manually throwing each container (stacking). In addition, all packs are parachuted in one pass, which ensures the accuracy of the landing. The domes open at intervals of 1-2 seconds, which ensures the safety of their filling.

Used sources.

1. Guidelines for airborne landing in civil aviation (RVD GA-99), approved by order of the FSVT RF No. 32 of 12.08.1999.

2.http: //sodpm.ru/img/book/c11/vdp/glava9.pdf

3. Container KAS-150. Operation manual P159-0000 RE.

Claims (1)

A chute for airborne cargo, consisting of two cradles on which a chute is fixed, to which two pairs of wheels are attached, a mooring unit, two handles for controlling the chute and a loop for attaching a safety line, characterized in that the front wheels rotate only around a horizontal axis, and the rear ones are also around the vertical axis, and the front lodgment with wheels is located at a distance of 0.35-0.4 of the length of the groove.

Images