Air-dropped fire extinguishing grenade

Abstract

To provide an air-dropped fire extinguishing bullet which hardly exerts an adverse effect on the global environment even when it falls on the ground, the wall of which is easily destroyed when it collides with a fallen object such as a forest, and which can efficiently and accurately scatter a fire extinguishing agent filled inside the fire extinguishing bullet on the ground, and a fire extinguishing method using the air-dropped fire extinguishing bullet. [Solution] The air-dropped fire extinguishing bomb 1 is dropped from the air, and is characterized in that the inside of a hollow body 2 is filled with a fire extinguishing agent 3, and the hollow body 2 has a wall portion 2a containing diatomaceous earth.

Description

[Technical field]

[0001] The present invention relates to an air-dropped fire extinguishing bomb. More specifically, the present invention relates to an air-dropped fire extinguishing bomb that can efficiently and accurately spray a fire extinguishing agent at the scene of a fire, such as a forest fire, and is made of an environmentally friendly material. [Background technology]

[0002] A dropped type fire extinguishing bullet has been proposed as a dropped type fire extinguishing bullet that is carried by a flying object such as a helicopter or airplane and used to extinguish a fire by being dropped from the sky above a fire site. The dropped type fire extinguishing bullet is provided with a main container means having an opening on one end side and filled with a fire extinguishing material, a fastener means for sealing and holding the opening in a steady state, a posture maintaining means fixed to the other end side of the main container means for holding the opening in the falling direction when in a falling state, an altitude detecting means which operates when the altitude from the ground reaches a predetermined value after being dropped from the flying object, a timer means which operates when a predetermined time has elapsed after being dropped from the flying object, and an opening means which operates by the output of the altitude detecting means or the timer means and opens the fastener (see, for example, the "Claims" and Figs. 1, 2 and 6 of Patent Document 1).

[0003] The dropped fire extinguishing bomb enables effective firefighting activities to be carried out from a safe altitude above the fire site using flying objects, and by using a large transport aircraft, a large amount of fire extinguishing material can be dropped at once, so it is said that it can quickly put out large-scale fires that are difficult to extinguish on the ground (see, for example, paragraph

[0023] of Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 8-229153 Summary of the Invention [Problem to be solved by the invention]

[0005] According to the above-mentioned drop-type fire extinguishing bullet, when the main container means filled with the fire extinguishing material is dropped from the flying object, the opening means of the fastening metal means is activated, the fire extinguishing material in the main container is released in the direction of fall, and the fire extinguishing material is scattered in the air, but the fire extinguishing agent cannot be dropped accurately at the fire site, and the fire cannot be extinguished efficiently, because the above-mentioned drop-type fire extinguishing bullet uses a timer means, etc., and the dropped timer and other metal parts may have a negative impact on the natural environment.

[0006] Thus, in the past, at the scene of forest fires and the like, fire-extinguishing materials have been scattered from the sky by helicopters and other flying objects, but this has resulted in a low efficiency in extinguishing fires. Therefore, in recent years, there has been an urgent need to develop air-dropped fire-extinguishing bombs that can increase fire-extinguishing efficiency and that do not have a negative impact on the natural environment even when they fall to the ground.

[0007] The present invention has been made in consideration of the above-mentioned conventional technology, and has as its object to provide an air-dropped fire extinguishing bullet which is unlikely to have a negative impact on the global environment when it falls to the ground, whose wall is easily destroyed when it collides with a fallen object such as a forest, and which can efficiently and accurately spray the extinguishing agent filled inside the bullet on the ground.

[0008] Another object of the present invention is to provide a fire extinguishing method using an air-dropped fire extinguishing bomb, which is unlikely to have a negative impact on the global environment even when it falls to the ground, and which can be loaded onto an air transport aircraft and dropped toward the fire scene from above the fire scene, so that the wall of the fire extinguishing bomb is easily destroyed when it collides with a fallen object such as a forest, and the extinguishing agent filled inside can be efficiently and accurately sprayed on the ground. [Means for solving the problem]

[0009] The present invention relates to (1) Airdrops, dropped from the air mold eraser It is a fireball, A hollow body and the Inside the hollow body It is filled Fire extinguishing agent Equipped with The hollow body is made of diatomaceous earth. From It has a wall The extinguishing agent is a powder inorganic extinguishing agent. An air drop characterized by mold eraser Fireball, and (2) The air drop described in (1) above mold eraser Fire bombs are loaded onto air transport planes and dropped from the sky above the fire scene. mold eraser fire bullet Fire A firefighting method using air-dropped fire-extinguishing bombs dropped toward the disaster site Regarding. Effect of the Invention

[0010] According to the present invention, there is provided an air-dropped fire extinguishing bullet that can efficiently and accurately spray extinguishing agent at the scene of a fire such as a forest fire, that is unlikely to have a negative impact on the global environment even if it falls on a forest, and that easily destroys the wall of the bullet when it collides with a fallen object such as a forest, thereby allowing the extinguishing agent filled inside to be efficiently and accurately sprayed on the ground.

[0011] In addition, according to the present invention, an air-dropped fire-extinguishing bomb that does not adversely affect the global environment even if it falls to the ground can be loaded onto an air transport aircraft, and the air-dropped fire-extinguishing bomb can be dropped toward the fire scene from above the fire scene, and the air-dropped fire-extinguishing bomb can be easily destroyed when it collides with a fallen object such as a forest, and the extinguishing agent filled inside can be efficiently and accurately sprayed on the ground. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a schematic explanatory diagram showing one embodiment of an air-dropped fire extinguishing bomb of the present invention. [Diagram 2] FIG. 1 is a schematic explanatory diagram showing one embodiment of a method for producing an air-dropped fire extinguishing bomb of the present invention. [Diagram 3]This is a photograph used in lieu of a drawing of firewood burning vigorously inside a drum used in a mock fire extinguishing test using an air-dropped fire extinguishing grenade. [Figure 4] This is a photograph of a crane truck used in a mock fire test using an air-dropped fire extinguishing grenade. [Diagram 5] This is a photograph of firewood in a drum after a mock fire test was conducted using an air-dropped fire extinguishing grenade. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The air-dropped fire extinguishing shell of the present invention will be described below with reference to the drawings, but the present invention is not limited to the embodiments shown in the drawings.

[0014] Fig. 1 is a schematic explanatory diagram showing one embodiment of the vertical cross-sectional shape of the air-dropped fire extinguishing bomb of the present invention. The air-dropped fire extinguishing bomb 1 shown in Fig. 1 has a capsule-like cross-sectional shape, but the present invention is not limited to this shape.

[0015] The air-dropped fire extinguishing bomb 1 is a fire extinguishing bomb dropped from the air. A hollow body 2 and a fire extinguishing agent 3 are used as raw materials for the air-dropped fire extinguishing bomb 1. The hollow body 2 of the air-dropped fire extinguishing bomb 1 is filled with the fire extinguishing agent 3.

[0016] The wall 2a of the hollow body 2 contains diatomaceous earth. Diatomaceous earth is a natural mineral formed by the fossilization of algae (phytoplankton) known as diatoms, and is non-flammable. When the diatoms die and deposit, over a long period of time the siliceous shells become diatomaceous earth. Diatomaceous earth was once recognized in Japan as edible soil, and there are records that it was used on the inner walls of Kumamoto Castle to store food when people were besieged.

[0017] Therefore, even if the air-dropped fire extinguishing bomb 1 is dropped from the air, reaches the ground surface, and the wall 2a of the hollow body 2 is destroyed, causing the hollow body 2 to be scattered on the ground surface, the diatomaceous earth used in the wall 2a of the hollow body 2 is unlikely to have an adverse effect on the global environment, so the air-dropped fire extinguishing bomb 1 of the present invention can be used as an environmentally friendly fire extinguishing bomb.

[0018] From the viewpoint of easily destroying the wall 2a of the hollow body 2 when the air-dropped fire extinguishing bullet 1 hits a fallen object such as a forest where a fire is occurring, and efficiently and accurately dispersing the extinguishing agent filled inside the hollow body 2 to the ground surface, the diatomaceous earth preferably has an average particle diameter of 10 to 300 μm, and more preferably has an average particle diameter of 50 to 300 μm. Here, the average particle diameter of the diatomaceous earth means the mode diameter, which means the average of the maximum diameters of the diatomaceous earth particles observed under an electron microscope.

[0019] Diatomaceous earth is easily available commercially. Examples of diatomaceous earth that can be easily available commercially include those manufactured by Showa Chemical Industry Co., Ltd. under the trade names Radiolite #200, Radiolite #300, Radiolite #500, Radiolite #600, Radiolite #700, Radiolite #800, Radiolite #900, Radiolite #2000, and Radiolite #3000; and those manufactured by Chuo Kasei Co., Ltd. under the trade names Oplite W3050 and Oplite W3050, but the present invention is not limited to these examples.

[0020] The wall 2a of the hollow body 2 may be composed of diatomaceous earth alone, or diatomaceous earth may contain inorganic materials other than diatomaceous earth within the scope of the present invention. Examples of inorganic materials other than diatomaceous earth include alumina, silica, titania, zirconia, magnesia, yttria, zinc oxide, iron oxide, silicon nitride, titanium nitride, boron nitride, silicon carbide, light calcium carbonate, heavy calcium carbonate, aluminum sulfate, magnesium hydroxide, aluminum hydroxide, potassium titanate, talc, kaolin (kaolin clay), kaolinite, halloysite, pyrophyllite, montmorillonite, sericite, muscovite, phlocopite, biotite, sodium taeniolite, lithium taeniolite, hydrotalc, glass flakes, amesite, bentonite, zeolite, calcium silicate, magnesium silicate, and silica sand, but the present invention is not limited to these examples.

[0021] The inventors have produced and tested prototypes of air-dropped fire extinguishing shells 1 using various materials such as glass, kaolin, paper clay, clay, and mortar, but it has been confirmed that in all cases, the fire extinguishing efficiency is low because the wall 2a of the hollow body 2 is difficult to destroy efficiently when a drop test is conducted, or even if the wall 2a of the hollow body 2 is destroyed, the fire extinguishing agent filled inside it is difficult to scatter efficiently.

[0022] In response to this, drop tests were conducted on an air-dropped fire extinguishing bullet 1 in which diatomaceous earth was used for the wall 2a of the hollow body 2, and it was found that, unlike air-dropped fire extinguishing bullets 1 in which a material other than diatomaceous earth was used for the wall 2a of the hollow body 2, the wall 2a of the fire extinguishing bullet was easily destroyed when colliding with a dropped object, and the extinguishing agent filled inside the fire extinguishing bullet was efficiently and accurately dispersed on the ground surface, thereby improving the fire extinguishing efficiency.

[0023] As described above, the air-dropped fire extinguishing bomb 1 of the present invention uses diatomaceous earth for the wall 2a of the hollow body 2, so that the wall 2a of the hollow body 2 is easily destroyed when it collides with a dropped object, and the extinguishing agent filled inside the fire extinguishing bomb is efficiently and accurately dispersed on the ground surface, thereby achieving the excellent effect of improving the fire extinguishing efficiency.

[0024] Examples of the external shape of the hollow body 2 include a sphere, a capsule, an elliptical sphere, a rectangular parallelepiped, a cube, a cylinder, etc., but the present invention is not limited to these examples. Among these external shapes of the hollow body 2, a sphere, a capsule, or an elliptical sphere is preferable, and a sphere is more preferable, because they reduce air resistance when the air-dropped fire extinguishing bomb 1 is dropped in the air and are less susceptible to the effects of strong winds and the like.

[0025] The size of the hollow body 2 is not particularly limited and may be any size. Examples of the size of the hollow body 2 include a sphere with a diameter of 5 to 20 cm, a cylinder with a diameter of 2 to 10 cm and a height of 3 to 30 cm, a capsule or an oval sphere, a cube or a rectangular parallelepiped with a side length of 3 to 20 cm, and the like, but the present invention is not limited to these examples.

[0026] In the present invention, the air-dropped fire extinguishing bomb 1 can be dropped from the sky toward the fire scene as it is. Alternatively, a plurality of small air-dropped fire extinguishing bombs 1 can be prepared as the air-dropped fire extinguishing bombs 1, a plurality of air-dropped fire extinguishing bombs 1 can be placed in a container, the container can be dropped from the sky toward the ground, the air-dropped fire extinguishing bombs 1 can be taken out of the container while falling and dispersed in the air, and the air-dropped fire extinguishing bombs 1 can be destroyed when they reach the ground, and the fire can be extinguished, or the container can be dropped from the sky, and the container and the air-dropped fire extinguishing bombs 1 in the container can be destroyed when the container reaches the ground.

[0027] A mixture of diatomaceous earth and water can be used as a raw material for the wall 2a of the hollow body 2. When mixing diatomaceous earth and water, the amount of water per 100 parts by mass of diatomaceous earth is not particularly limited, but is preferably 10 to 100 parts by mass, more preferably 20 to 80 parts by mass, and even more preferably 30 to 60 parts by mass, from the viewpoint of efficiently producing the wall 2a of the hollow body 2 having an appropriate mechanical strength. The mixture of diatomaceous earth and water may contain an appropriate amount of binder to increase the mechanical strength of the wall 2a of the hollow body 2. Examples of binders include ethylene-vinyl acetate resin emulsion and polyvinyl alcohol, but the present invention is not limited to these examples.

[0028] The hollow body 2 can be produced, for example, by using a male mold and a female mold as the molding die. More specifically, for example, the hollow body 2 can be produced based on the steps shown in FIG. 2. FIG. 2 is a schematic explanatory diagram showing one embodiment of the manufacturing method for the air-dropped fire extinguishing shell of the present invention. FIG. 2 is a schematic diagram for easy understanding of the structures of the molding die and the hollow body 2, and therefore differs from the actual structures of the molding die and the hollow body 2. The shape of the molding die shown in FIG. 2 is arbitrary, and the present invention is not limited by the shape of the molding die.

[0029] First, as shown in FIG. 2(a), a mixture 12 of diatomaceous earth and water is poured into a female mold 11 having a tapered surface 11a on its inner surface for making it easy to remove a molded body.

[0030] Thereafter, as shown in FIG. 2( b ), a male die 13 is inserted into the female die 11 , and the gap between the female die 11 and the male die 13 is filled with the mixture 12 .

[0031] Next, the filled mixture 12 is dried to produce the molded body A14. There is no particular limitation on the method for drying the mixture 12. Examples of the drying method include natural drying and heat drying. The molded body A14 obtained as described above is taken out of the female mold 11 by removing the male mold 13.

[0032] Molded body B15 having an opening with an inner diameter larger than the outer diameter of the opening of molded body A14 is produced by a method similar to that of molded body A14 described above. Either molded body A14 or molded body B15 may be produced first.

[0033] 2(d), the opening of the molded body A14 is overlapped with the opening of the molded body B15, and the opening of the molded body A14 is inserted into the opening of the molded body B15. When the opening of the molded body A14 is overlapped with the opening of the molded body B15, the surfaces of the molded body A14 and the molded body B15 are rough, so that the two can be integrated so that they do not easily separate, but in order to fix the molded body A14 and the molded body B15, the joint between the molded body A14 and the molded body B15 may be bonded with the mixture, the binder, or the like.

[0034] By joining the molded body A14 and the molded body B15 in the manner described above, the hollow body 2 can be obtained as shown in FIG. 2(d).

[0035] As shown in Figure 2 (e), a through hole 16 is made in the hollow body 2 obtained as described above using a drill or the like in order to fill it with the extinguishing agent 3. After the extinguishing agent 3 is filled into the inside of the hollow body 2 through the through hole 16, the through hole 16 is blocked with a mixture 12 or the like, and the blocked portion of the through hole 16 is solidified by a method such as drying, thereby obtaining an air-dropped fire extinguishing grenade 1 in which the extinguishing agent 3 is filled inside the hollow body 2, as shown in Figure 2 (f).

[0036] The spherical hollow body 2 can be produced by using a balloon made of rubber or the like. More specifically, a balloon having a spherical outer shape is prepared, and the mixture 12 is applied to the surface of the balloon and dried to produce the hollow body 2. A through hole is provided in the obtained hollow body 2 to fill the inside with the fire extinguishing agent 3. When the through hole is provided, the balloon may burst. From the viewpoint of obtaining an air-dropped fire extinguishing shell 1 that is friendly to the global environment, it is preferable to remove the burst balloon from the through hole. In addition, if cracks occur in the wall 2a of the hollow body 2 when the balloon is burst, a release agent such as a silicone release agent may be applied to the surface of the balloon in advance so that the balloon can be easily peeled off from the wall 2a of the hollow body 2, or an appropriate amount of the binder may be added to the mixture 12 to increase the mechanical strength of the wall 2a of the hollow body 2. After filling the inside of the hollow body 2 with the fire extinguishing agent 3, the through holes are blocked with a mixture 12 or the like, and the blocked parts of the through holes are solidified by a method such as drying, thereby obtaining a spherical air-dropped fire extinguishing bomb 1.

[0037] The thickness of the wall 2a of the hollow body 2 cannot be determined in general because the degree of destruction of the wall 2a of the hollow body 2 when it collides with a falling object such as a forest and the state of dispersion of the extinguishing agent 3 filled inside the hollow body 2 vary depending on the size and shape of the hollow body 2. The thickness of the wall 2a of the hollow body 2 is preferably 0.5 to 5 mm, and more preferably 1 to 3 mm, from the viewpoints of imparting an appropriate mechanical strength to the air-dropped fire extinguishing bullet 1, easily destroying the wall 2a of the hollow body 2 when it falls to the ground, and increasing the extinguishing efficiency of the extinguishing agent 3 filled inside the hollow body 2.

[0038] The extinguishing agent 3 may be a liquid or foam extinguishing agent or a powder extinguishing agent. In the present invention, the extinguishing agent 3 filled inside the hollow body 2 is preferably a powder extinguishing agent 3 in consideration of the weight reduction of the air-dropped fire extinguishing bullet 1 and the mechanical strength of the wall 2a of the hollow body 2. The powder extinguishing agent 3 may be an extinguishing agent generally used in a powder fire extinguisher.

[0039] Examples of powder extinguishing agents include inorganic powders such as ammonium phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, potassium carbonate, potassium hydrogen carbonate, and potassium tetraborate, and organic powder extinguishing agents such as potassium acetate, potassium citrate, potassium lactate, potassium oxalate, potassium maleate, and potassium tartrate, but the present invention is not limited to these examples. These powder extinguishing agents may be used alone or in combination of two or more. Among these powder extinguishing agents, inorganic powder extinguishing agents are preferred because they are environmentally friendly, and ammonium phosphate, potassium dihydrogen phosphate, and dipotassium hydrogen phosphate are more preferred. The average particle size of the powder extinguishing agent is not particularly limited, and the average particle size of the powder extinguishing agent generally used in powder fire extinguishers is about 1 to 100 μm. The average particle size of the powder extinguishing agent can be measured using a laser diffraction particle size distribution measuring device.

[0040] The amount of extinguishing agent filled inside the hollow body 2 cannot be determined in general because it varies depending on the internal volume of the hollow body 2. From the viewpoint of effectively utilizing the air-dropped fire extinguishing grenade 1 of the present invention, it is preferable that the inside of the hollow body 2 is filled with the extinguishing agent.

[0041] The air-dropped fire extinguishing bullet 1 of the present invention obtained in the above manner maintains its shape when dropped from the sky, thereby preventing the powdered fire extinguishing agent from scattering or diffusing in the air as in the conventional case. When it collides with a fallen object such as a forest, the hollow body 2 is easily destroyed, and the fire extinguishing agent filled inside the hollow body 2 is scattered and dispersed on the ground surface. This results in the excellent effect of allowing the fire extinguishing agent to be efficiently and accurately dispersed directly at the scene of a fire such as a forest fire, and further reducing the adverse impact on the global environment such as forests.

[0042] A method of extinguishing a fire using the air-dropped fire extinguishing bomb 1 of the present invention includes a method of loading the fire extinguishing bomb 1 onto an air transport aircraft and dropping the fire extinguishing bomb 1 from above the fire site toward the fire site. According to this method, the fire extinguishing bomb is easily destroyed when it collides with a falling object such as a forest, and the extinguishing agent filled inside can be dispersed at the fire site, so that the extinguishing agent used in the air-dropped fire extinguishing bomb 1 can be used efficiently without waste, and fires such as forest fires can be effectively extinguished at fire sites.

[0043] In the present invention, air transport aircraft refers to air transport means such as helicopters, airplanes, and drones.

[0044] Therefore, in today's world where forest fires are occurring frequently not only in Japan but also in other countries, the air-dropped fire extinguishing bomb 1 of the present invention can be dropped directly and accurately from an air transport aircraft onto the scene of a fire, allowing the extinguishing agent contained in the air-dropped fire extinguishing bomb 1 to be used without waste, thereby enabling firefighting activities to be carried out efficiently. Therefore, it is highly anticipated that the air-dropped fire extinguishing bomb 1 will be used as an alternative to extinguishing agents used in conventional aerial spraying by helicopters, etc. EXAMPLES

[0045] Next, the air-dropped fire extinguishing shell 1 of the present invention will be described in more detail based on examples, but the present invention is not limited to only these examples.

[0046] Example 1 Diatomaceous earth and water were used as raw materials for the walls of the hollow bodies used in air-dropped fire extinguishing bombs. 1,800 g of diatomaceous earth and 600 g of water were placed in a 10-liter container and mixed to obtain a uniform composition to obtain a mixture.

[0047] Using the mixture obtained above, a cylindrical hollow body with a diameter of about 5.5 cm and a height of about 15 cm was made according to the method shown in Figure 2, and six air-drop type fire extinguishing bombs were made by filling the inside of the hollow body with 350 g of inorganic powder fire extinguishing agent.

[0048] To conduct a mock fire test using an air-dropped fire extinguishing bomb, firewood was placed in a drum cut in half lengthwise and ignited. The firewood was allowed to burn vigorously, and when the firewood was burning vigorously as shown in Figure 3, six air-dropped fire extinguishing bombs were lifted by a crane to a height of 6 m above the ground as shown in Figure 4 and dropped onto the burning firewood.

[0049] Figure 3 is a photograph (used as a substitute for a drawing) of firewood burning vigorously inside a drum used in a mock fire test using an air-dropped fire extinguishing grenade, and Figure 4 is a photograph (used as a substitute for a drawing) of a crane truck used in a mock fire test using an air-dropped fire extinguishing grenade.

[0050] The state after six air-dropped fire extinguishing bombs were dropped on the burning firewood is shown in the photo in Figure 5. Figure 5 is a photo of the firewood in a drum after a mock fire test was conducted using air-dropped fire extinguishing bombs.

[0051] As shown in Figure 5, it was confirmed that when an air-dropped fire extinguishing bomb was dropped on burning firewood, the firewood could be quickly put out. The cylindrical object in the lower left of Figure 5 is an air-dropped fire extinguishing bomb dropped from a crane truck, and it can be seen that cracks have appeared in the wall of the hollow body, destroying it.

[0052] As described above, the air-dropped fire extinguishing bomb of the present invention can effectively extinguish a fire even when dropped from 6 m above the ground. Therefore, if the air-dropped fire extinguishing bomb of the present invention is dropped from even higher in the sky by a helicopter or the like, the strong impact force when it reaches the ground will make the walls of the hollow body even more likely to be destroyed, thereby enabling the fire to be efficiently extinguished at the fire scene.

[0053] Therefore, the air-dropped fire extinguishing bomb of the present invention can efficiently and accurately spray extinguishing agent at the scene of a fire such as a forest fire, is unlikely to have a negative impact on the global environment even if it falls on a forest, and is unlikely to be affected by weather conditions such as strong winds.When it collides with a fallen object such as a forest at the scene of a fire, the wall of the hollow body is destroyed, and the extinguishing agent filled inside the hollow body can be efficiently and accurately sprayed on the ground's surface.Therefore, it is expected that this will make a significant contribution to the early extinguishing of fires such as forest fires that are thought to occur due to global warming in recent years, and to the reduction of the scope of the fires. [Explanation of symbols]

[0054] 1. Air-dropped fire extinguishing grenades 2 hollow body 2a Wall of hollow body 3. Fire extinguishing agents 11 Female mold 12 mixture 13 Male type 14 Molded object A 15 Molded object B 16 Through hole

Claims

1. An air-dropped fire extinguishing bomb that is dropped from the air, comprising a hollow body and an extinguishing agent filled inside the hollow body, the hollow body having a wall made of diatomaceous earth, and the extinguishing agent being a powdered inorganic extinguishing agent.

2. 13. A method for extinguishing a fire using an air-dropped fire extinguishing bomb, comprising loading the air-dropped fire extinguishing bomb according to claim 1 onto an air transport aircraft and dropping the air-dropped fire extinguishing bomb toward the fire site from above the fire site.

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