Patent Abstract:
This invention relates to sports and leisure structures. An Aquatir comprising a water-filled pool formed by walls, an above-water fencing, at least one shooting position with weapon and at least one underwater target. The pool is equipped with a transversal partition that separates the pool swimming area with the shooting position from the underwater target, wherein the partition in front of each shooting position has at least one underwater embrasure and located behind the targets above-water part of the pool wall and above-water fencing are equipped with bullet-traps 
     containing swimming pools and can be used for teaching, training and carrying out of sporting competitions in shooting under the water and from the air into the water from pneumatic and missile weapons and fire-arms, where it is also possible to combine shooting with speed swimming.

Full Description:
TECHNICAL FIELD 
       [0001]    This invention relates to sports and leisure structures containing swimming pools and can be used for teaching, training and carrying out of sporting competitions in shooting under the water and from the air into the water from pneumatic and missile weapons and fire-arms, where it is also possible to combine shooting with speed swimming. 
       PRIOR ART 
       [0002]    The mass popularity of underwater sports and underwater hunting, has led to the designing of underwater ammunitions for available fire-arms (see Description to patent RU 2268455, Int. Cl. 7  F42B 10/38, published 20 Jan. 2006; Ardashev A. N., Fedoseev S. L., “Orudgie specialnoye, neobychnoye, exoticheskoye”, Moscow, Voennaya Technika, 2001, pages 172-177) providing safe training in shooting under the water and from the air into the water against underwater targets, possible in underwater shooting galleries called Aquatirs where participants could train and carry out sports competitions for underwater hunters, military divers and sportsmen. 
         [0003]    Existing shooting galleries and shooting stands are intended for firing into targets in the air. Under the water light refraction affects targeting so that in reality the underwater target is not located in the place where it is seen; therefore it is impossible to learn effective shooting under the water and from the air into the water against underwater targets in existing shooting galleries. 
         [0004]    It is well known that competitions in underwater shooting from harpoon guns are carried out in swimming pools where targets are installed at the range of 4 m and the shooting line is confined by floating buoys. In the course of competition the score of a sportsman that breaches that line is cancelled. Defining such a breach is rather difficult to register, especially while shooting in the centre of the swimming pool, and that often results in subjective referees&#39; decisions. The sportsman shoots with one harpoon attached to a line and after shot the sportsman pulls the line and extracts the harpoon from the target; this procedure doesn&#39;t raise staginess of competitions (see International Rules on target shooting of &lt;&lt;Confederation Mondiale des Activites Subaquatiques&gt;&gt;, published May, 2002). 
         [0005]    The closest analog of this claimed invention is a shooting gallery having a water-filled area where adjacent shooting sections with targets are partitioned off by floating protective shields and an area of fencing comprises a protective screen (see Description to patent RU 2119144, Int. Cl. 6  F 41J 1/18, published on 20.09.1998). 
         [0006]    Disadvantage of that known structure is a lack of common safety for a shooter. Shooting sections are partitioned off and fenced by protective shields that prevent the instructor from watching actions of shooter in the section, and the shooter from watching actions in the section next to him; besides, shooting position is not separated from the target and does not allow control of a shooter&#39;s motion in the direction of the target. In the case when the shooter is near his target and shooting takes place in the next section, protective shields floating with gaps cannot provide safety of the shooter near the target, as harpoon or bullet can ricochet from targets, bottom or firm protective shields. 
         [0007]    Moreover, in that known structure it is suggested that shooting take place in opposite directions in adjacent sections, as well as to mount upper protective cover on the floats or to use for this purpose a diving-bell. Counter-shooting in opposite directions is prohibited in all shooting galleries under any circumstances, and in that known structure protective shields floating with gaps cannot provide safety of the shooter in his own position. Besides, harpoons and bullets that may fly out of the water can ricochet from the upper cover and get into the adjacent section. 
         [0008]    In that known structure of underwater shooting gallery it is suggested to make supports for underwater shooters in the form of pads with negative flotation capabilities. It is well known that under the water a swimmer equipped with ballast weight has zero flotation ability and he could not lie on pads. To retain orientation while making an underwater shot the shooter should move forward or rest against an obstacle due to imitation of forward motion by use of feet (flippers). 
         [0009]    In Description to patent RU No. 2119144 it is stated that this underwater shooting gallery could be assembled and disassembled in several minutes that is quite impossible, if protective shields are adequately durable and safe. That means that this underwater shooting gallery structure from the very beginning does not expect safe shooting conditions. 
         [0010]    It is necessary to note that the known structure of underwater shooting gallery does not enable training and sports competitions in speed swimming combined with shooting against underwater targets. 
       SUMMARY OF THE INVENTION 
       [0011]    The purpose and the technical result of given invention is the provision of safety and increase of effectiveness of teaching and training in shooting against underwater targets, as well as increase of staginess of sports competitions in swimming and shooting against underwater targets. 
         [0012]    The mentioned technical result is provided by the fact that in Aqua shooting range (Aquatir) according to the first variant which comprises a water-filled pool formed by walls, an above-water fencing, at least one shooting position with weapon and at least one underwater target, where the pool is equipped with transverse partitioning that separates the pool swimming area with the shooting position from the underwater target, and where the partition in front of each shooting position has at least one underwater embrasure and above-water part of the pool wall and above-water fencing are equipped with bullet-traps. 
         [0013]    Moreover, it is equipped with at least one additional shooting position for shooting from the air into the water located on the partition and the underwater target is installed with the capability of restriction to the vertical pointing angle of weapon that is not less then 100 relative to horizon. 
         [0014]    Moreover, the partition has at least one ladder to climb out from the swimming part of the pool. 
         [0015]    Moreover, the partition is made of transparent material, partially or completely. 
         [0016]    Moreover, the underwater target is installed with capability of restriction as to vertical pointing angle of weapon from the underwater embrasure that is not less than 1° relative to horizon. 
         [0017]    Moreover, the underwater target is made of metal as a plane figure and is installed with capability of horizontal rotation from shooting position in the window of metal frame with upper shield. 
         [0018]    Moreover, the underwater target is made of fragile material as a plane figure and is installed in the window of metal frame with upper shield. 
         [0019]    Moreover, the underwater target is made as an inflatable figure and is equipped with an anchor. 
         [0020]    Moreover, the underwater target is made as a transparent inflatable figure with source of light of permanent or periodic effect inside and is equipped with an anchor. 
         [0021]    Moreover, the underwater target is made as an inflatable figure, is equipped with weight and is suspended on floating buoy with capability of motion in horizontal and/or vertical plane. 
         [0022]    Moreover, the underwater target is made as a transparent inflatable figure with source of light of permanent or periodic effect inside, is equipped with weight and is suspended on floating buoy with capability of motion in horizontal and/or vertical plane. 
         [0023]    Moreover, the underwater target is made as an inflatable figure, is equipped with weight and is suspended on mechanical drive with capability of motion in horizontal and/or vertical plane. 
         [0024]    Moreover, the underwater target is made as a transparent inflatable figure with source of light of permanent or periodic effect inside, is equipped with weight and is suspended on mechanical drive with capability of motion in horizontal and/or vertical plane. 
         [0025]    Moreover, as a target is used captured live fish that swims in enclosed by net area. 
         [0026]    Moreover, as a weapon are used harpoon guns with harpoons having weighted head and light-weight aft part, and the wall of swimming pool behind the target has a protective screen. 
         [0027]    Moreover, as a weapon are used bows and/or arbalests with arrows having weighted arrow-head and light-weight aft part without empennage, and the wall of swimming pool behind the target has a protective screen. 
         [0028]    Moreover, as weapon are used firearms, and the wall of swimming pool behind the target is equipped with a bullet-trap and the bottom and side walls of the pool have protective screens. 
         [0029]    Moreover, behind and on the sides of shooting position are mounted sound-absorbing shields. 
         [0030]    Moreover, the weapon is installed in a mount with restriction of weapon rotation in horizontal and vertical plane. 
         [0031]    Moreover, on the weapon there is a laser target designator in sealed casing. 
         [0032]    Moreover, on the bullet-trap there is a changeable decorative coating. 
         [0033]    Aquatir according to the second variant comprises a water-filled pool formed by walls, an above-water fencing, at least one shooting position with weapon and at least one underwater target, where according to the invention the shooting position is located above the water on one side of the pool and the underwater target is installed with capability of restriction as to vertical pointing angle of weapon that is not less then 100 relative to horizon and located behind the underwater target above-water part of the pool wall and above-water fencing are equipped with bullet-traps. 
         [0034]    Moreover, the pool is equipped with a transverse partition that separates the pool swimming area from the underwater target, and where shooting position is located on the partition having at least one ladder to climb out from the swimming part of the pool. 
         [0035]    Moreover, the underwater target is made of metal as a plane figure and is installed with capability of rotation from shooting position in the window of metal frame with upper shield. 
         [0036]    Moreover, the underwater target is made of fragile material as a plane figure and is installed in the window of metal frame with upper shield. 
         [0037]    Moreover, the underwater target is made as an inflatable figure and is equipped with an anchor. 
         [0038]    Moreover, the underwater target is made as a transparent inflatable figure with source of light of permanent or periodic effect inside and is equipped with an anchor. 
         [0039]    Moreover, the underwater target is made as an inflatable figure, is equipped with weight and is suspended on floating buoy with capability of motion in horizontal and/or vertical plane. 
         [0040]    Moreover, the underwater target is made as a transparent inflatable figure with source of light of permanent or periodic effect inside, is equipped with weight and is suspended on floating buoy with capability of motion in horizontal and/or vertical plane. 
         [0041]    Moreover, the underwater target is made as an inflatable figure, is equipped with weight and is suspended on mechanical drive with capability of motion in horizontal and/or vertical plane. 
         [0042]    Moreover, the underwater target is made as a transparent inflatable figure with source of light of permanent or periodic effect inside, is equipped with weight and is suspended on mechanical drive with capability of motion in horizontal and/or vertical plane. 
         [0043]    Moreover, as a target is used captured live fish that swim in area enclosed by net. 
         [0044]    Moreover, as a weapon are used harpoon guns with harpoons having weighted head and light-weight aft part, and the wall of swimming pool behind the target has protective screen. 
         [0045]    Moreover, as a weapon are used bows and/or arbalests with arrows having weighted arrow-head and light-weight aft part without empennage, and the wall of swimming pool behind the target has protective screen. 
         [0046]    Moreover, as a weapon are used fire-arms, and the wall of swimming pool behind the target is equipped with a bullet-trap and the bottom and side walls of the pool have protective screens. 
         [0047]    Moreover, the weapon is installed in a mount with restriction of weapon rotation in horizontal and vertical plane. 
         [0048]    Moreover, on the weapon there is a laser target designator in sealed casing. 
         [0049]    Moreover, on the bullet-trap there is a changeable decorative coating. 
         [0050]    That stated totality of inventive features specified in the first independent and in dependent patent claims allows to perform effective teaching and training and to carry out sports competitions in underwater shooting in stationary pool. Safety of shooting is provided by the fact that shooting positions are partitioned from targets, but are not separated into sections, shooters see actions of each other, shoot through embrasures, are watched by trainers and could not get into shooting zone near the targets. For trapping of harpoons and bullets that accidentally fly out of the water the above-water part of Aquatir behind the targets is covered by bullet-trap, while the pool is not divided into sections by longitudinal screens from which harpoons and bullets can ricochet. 
         [0051]    Shooters can be comfortably placed at shooting positions even in pools of minimal length. 
         [0052]    If the length of the swimming part exceeds dimensions of standard sporting pool, training and competitions in swimming and underwater shooting could be carried out in Aquatir simultaneously that makes possible creation of a new aquatic sport—underwater biathlon that includes both speed swimming and underwater shooting. 
         [0053]    In preferable embodiment of the invention on the partition with underwater embrasures are located above-water shooting positions with mounted ladders to climb out from the swimming part of the pool. Having a pool of minimal length it is possible simultaneously to shoot under the water and from the air into the water and to carry out competitions in these events of sports shooting. If the length of the swimming part exceeds dimensions of standard sports pool, Aquatir design makes possible creation of a new aquatic sport—underwater triathlon including speed swimming and shooting against underwater targets under the water and from the air into the water. 
         [0054]    That stated totality of inventive features specified in the second independent patent claim allows to perform effective teaching and training and to carry out sports competitions in shooting against underwater targets from the air into the water. Safety of shooting is provided by the fact that shooting positions are located in one part of the pool, but are not divided into sections, shooters see actions of each other, are watched by trainers and could not accidentally get into shooting zone near the targets. For specified minimal shooting angle relative to horizon ricochet of bullet or harpoon from water surface is eliminated. Angle of shooting into the water without ricochet was determined by the invention authors experimentally and comprises 7° relative to horizon for firing from smooth-bore weapon with finned underwater bullets or 100 relative to horizon for firing from rifled weapon with underwater rotating bullets. For trapping of harpoons and bullets that ricochet from the water above-water part of Aquatir behind the targets is covered by the bullet-trap. 
         [0055]    Such design of Aquatir makes possible creation of a new aquatic sport—hitting of underwater targets in course of shooting from the air into the water. 
         [0056]    In one of the invention embodiments Aquatir comprises partition that separates the swimming part of the pool from the targets, while shooting positions are located on the partition with mounted ladders to climb out from the swimming part of the pool. In such structure of Aquatir it is possible simultaneously to swim and to shoot from the air into the water, for example from smooth-bore weapon or long-barreled rifles that are not intended for underwater shooting. 
         [0057]    If the length of the swimming part exceeds dimensions of standard sports pool, Aquatir design makes possible creation of a new aquatic sport—underwater biathlon including both speed swimming and shooting against underwater targets from the air into the water. 
         [0058]    As an underwater weapon for Aquatir could be used harpoon guns with set of exchangeable harpoons having weighted head and light-weight aft part. Shift of center of harpoon mass to its head part increases stability and shooting accuracy both in the water and in the air. Moreover, as an underwater weapon could be used bows and arbalests with set of exchangeable arrows that should be equipped with weighted head and should have no tail empennage that distorts underwater trajectory. In this case underwater range to targets can make up 4-6 meters and the length of the ballistic part of the pool—7 meters. 
         [0059]    For protection of the pool inner lining could be used white 3-5 mm polyethylene screens that are mounted behind the targets on underwater part of the wall and on bottom of the pool. 
         [0060]    As fire-arms for Aquatir could be used 4.5 mm special underwater pistols SPP-1M and 5.66 mm special underwater submachine guns APS (see for example Ardashev A. N., Fedoseev S. L., “Orudgie specialnoye, neobychnoye, exoticheskoye”, Moscow, Voennaya Technika, 2001, pages 172 . . . 177) with multiple-purpose bullets (see Description to patent RU 2112205, Int. Cl. 6  F42 B 30/02, published on 27.08.1998). Moreover, here could be used Kalashnikov submachine guns and 7.62 mm sporting/hunting rifled carbines of “Saiga” series, smooth-bore guns of “Saiga-410” series made according to Kalashnikov submachine gun technology and underwater ammunitions with cavitating bullet-core (see for example Description to patent RU 2268455, Int. Cl. 7  F42B 10/38, published on 20.01.2006). For firing from the air into the water could be used any small arms or sporting/hunting weapons. Besides, for firing in Aquatir could be designed special sporting weapon, for example revolvers, short-barreled rifles and revolver guns. 
         [0061]    In the case of fire-arms use the underwater range to targets and length of the ballistic part of the pool are restricted by water transparency and can comprise 15-20 meters. The wall of the pool behind the targets should be covered by bullet-trap. As necessary for protection of pool inner lining could be used 4-6 mm steel shields that are mounted behind the targets on underwater part of the wall and on bottom of the pool. 
         [0062]    In particular case of this invention for teaching in shooting under the water and from the air into the water the weapon is installed in a mount which provides rigid weapon fixation and restriction of weapon rotation angle. For example, in case of rigid weapon fixation aiming into target is carried out by trainer who takes into account optical refraction in the water, trainee memorizes correction value, shoots himself and estimates a result of shooting. This variant increases teaching efficiency and provides safety of other people in course of training shooting. 
         [0063]    For increase of effectiveness of teaching and training on the weapon can be installed laser target designator. 
         [0064]    For safety underwater shooting the arrangement of the target relative to shooting position must provide negative angle of weapon pointing comprising not less then 10 from horizon. That variant reduces probability of accidental flight of cavitating bullet out of the water and is successfully applied by the invention authors for underwater shooting in practice. 
         [0065]    In particular case of this invention for underwater shooting from firearms behind and on both sides of the shooting position are mounted sound-absorbing screens. That variant reduces the effect on the shooter of shock wave reflected from the pool walls. 
         [0066]    In accordance with one of the invention embodiments it is reasonable to install on the bullet-trap a decoration coating that could be changed after deterioration of its appearance. 
         [0067]    For firing from firearms it is preferable to use flat steel targets attached with capability of rotation from shooting position in the window of metal frame with upper shield. After impact of bullet the target turns round in horizontal plane, the fact of target hitting is instantly obvious and ricochet upwards is eliminated, besides deformable bullet does not form a cavity and quickly stops in the water. In case of hitting steel frame the bullet is deformed and at once stops, and in case of ricochet the upper shield prevents its flight out of the water. This structure has long lifetime and the targets are easily arranged into initial position. 
         [0068]    In one of particular cases of the invention flat targets are made of fragile material, for example of ceramics, and are installed in windows of steel frame. This variant allows for certain to determine the fact of hitting of the target which is crashed after hitting that raises staginess of competitions. 
         [0069]    In particular case of this invention the underwater target is made in form of inflatable sphere that is prevented from emergence by an anchor attached with a line. That inflatable sphere could be transparent and illuminated by inner source of light whose sealed battery is installed in the anchor and the line comprises a conductive wire. This variant allows for certain to determine the fact of hitting of the target which bursts after hitting that raises staginess of competitions and eliminates possibility of core deformation and ricochet after impact with the target. 
         [0070]    For further raise of competition staginess in the inflatable target could be placed a floating object, for example a hollow ball. In case when several inflatable targets are used for limited number of shots floating balls could be marked with figures (letters) indicating score points. 
         [0071]    In particular case of this invention inflatable spheres with inner illumination are attached to one anchor and are illuminated for short time period in definite order. Shooting is performed against illuminated targets that raises training effectiveness and competition staginess. 
         [0072]    In the other particular case of this invention an inflatable and illuminated target is suspended on radio-controlled buoy having its own engine, while the anchor with power supply does not touch the pool bottom that allows to move target in horizontal plane. That raises staginess of team events where one team controls target and the other tries to hit it. 
         [0073]    In the other particular case of this invention underwater inflatable and illuminated targets with anchors are suspended on above-water mechanical drive that moves targets in vertical and horizontal planes. Shooting against mobile targets raises training effectiveness and competition staginess. 
         [0074]    In Aquatirs for shooting are used arrows, harpoons and cavitating bullets intended for underwater hunting, therefore in the particular case of this invention embodiment as moving targets could be used captured live fish that swims in an area enclosed by net. That variant of the invention allows to carry out practical trainings in underwater hunting and besides killed fish could be cooked on demand. 
         [0075]    Aquatir should comprise all features of shooting gallery including room for storage of weapons and ammunitions, as well as all features of swimming pool where could be offered different entertaining and health-improving services. 
         [0076]    It is better to carry out competitions and trainings in underwater shooting galleries with artificial pool having water of standard transparency and temperature. As necessary Aquatir with the above-water fencing could be placed on the shore of open water area. Sportsmen could use equipment of military divers, competitions in speed swimming can be carried out under the water and competitors can wear outfit of underwater hunters (without aqualung). To provide safety the audience should be placed around the swimming part of the pool and could be protected by transparent bullet-proof partition. 
         [0077]    The invention is explained in more detail on actual examples that in no way cut down the volume of claims and are only intended for better understanding of invention gist by experts. 
     
    
     
       BRIEF DESCRIPTIONS OF THE DRAWINGS 
         [0078]    In description of specific embodiments of the invention there are reference to the accompanying drawings that show the following: 
           [0079]      FIG. 1  and  FIG. 2  show the first variant of Aquatir embodiment according to the invention with stationary partition; 
           [0080]      FIG. 3  and  FIG. 4  show the second variant of Aquatir embodiment according to the invention with removable partition. 
       
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0081]      FIG. 1  shows longitudinal cross-section of Aquatir pool intended for swimming and shooting under the water and from the air into the water, and  FIG. 2  shows a top plan view of Aquatir pool. 
         [0082]    Aquatir comprises a water-filled pool  1  with a nosing  3  and above-water walls  2 . A ballistic part  4  of the pool with underwater targets  5  is separated by a transversal partition  6  with starting stands  7  and underwater embrasures  8  through which from shooting positions  9  is performed underwater shooting. The embrasures  8  can have rectangular or round transversal cross-section and straight or conical longitudinal cross-section. 
         [0083]    It is advisable to install the target  5  at the range of 0.5-0.8 m from an underwater bullet-trap  10  that should completely cover the pool wall, while the outer wall behind targets should be covered by an above-water bullet-trap  11  having width more then width of the pool and height more then 2 m. The bullet-traps  10  and  11  could be made of dense rubber or of wood and for better light-reflection and illumination of Aquatir could have bright decorative coating which fragments could be replaced after deterioration of their appearance. 
         [0084]    A swimming part  12  of the pool is divided by ropes  13  into tracks  14  having standard width. Starting stands  7 , underwater embrasures  8 , shooting positions  9  and targets  5  are placed along the axis of tracks  14 . Ladders  15  are intended for exit from water onto transversal partition and are mounted at the end of tracks  14 . 
         [0085]    Depth  16  in the shallow part of the pool could be standard, while the depth  17  near the targets should be more then depth  16  and should allow to install the targets  5  lower then shooting positions  9  that provides negative angle of weapon pointing P relative to horizon and tilt of shooting trajectory  19  downward. 
         [0086]    Shooting from the air against the underwater target  5  is performed from an above-water shooting position  20 , and for better view of the targets  5  this shooting could be performed from the highest place on the partition  6 , for example from the staring stand  7 . To eliminate ricochet during pass of cavitating core from the air into the water the arrangement of targets should provide tilt angle ω of trajectory  21  not less then 10° to horizon taking into account the fact that underwater target is distinctly seen under the water at the angle more then 15° relative to horizon. 
         [0087]    Depending on the power of firearms aiming range of underwater shooting can comprise 15-30 m and is limited by visibility in the water, therefore length  22  of the ballistic part of  4  of the pool is chosen taking into consideration visibility in the water and may comprise 16-21 m. 
         [0088]    To provide equal conditions during sporting competitions in underwater shooting it is advisable to choose single range to the underwater targets  5 , for example 15m, while length  23  of the pool swimming part  12  may be standard and may comprise 25 m or 50 m. For access to the starting stands  7  and for shooting from the air into the water width  24  of the transversal partition  6  may comprise 1.2-2.0 m. 
         [0089]    Lining of pool  1 , nosing  3  and transversal partition  6  is made of standard coating. Walls  2  may have sound-absorbing lining that reduce reflected sound of the shots in the air. 
         [0090]    For teaching in shooting under the water and from the air into the water the weapon can be installed in a mount at the shooting position  9  or in the underwater embrasure  8  or can be installed in a mount in front of the starting stand  7 . 
         [0091]    Training and sports competitions in underwater and above-water shooting can comprise speed swimming: for example competitor from one team with the help of remote control moves a target attached to radio-controlled buoy having its own engine and shooter from the other team tries to hit this target. After hitting the target competitors swim to the buoy trying to reach it first, to bring it to definite place and to score points for their teams, and after that they exchange the roles. 
         [0092]    During the competitions shooting is performed off-hand, and competitions in swimming and shooting can be carried out taking into account the time and shooting results. For example sportsmen in outfit of underwater hunters may carry out competitions in the following succession:
       sportsmen simultaneously dive with weapon from the starting stands  7  into the water and swim specified distance along the tracks  14 ;   after that sportsman holds the breath, dives to underwater embrasure  8  and shoots under the water against the targets  5  trying to hit maximal number of targets in course of one dive;   after underwater shooting sportsman swims specified distance again, then with weapon climbs the ladder  15 , gets onto transversal partition  6  and shoots against the targets  5  trying to hit maximal number of targets with one allowance of ammunition (cartridge clip);   after shooting in the air sportsman reloads his weapon, dives into the water and continues competition.       
 
         [0097]    Sportsmen in equipment of military divers can carry out competitions in the same succession, and an aqualung allows to hit more targets during underwater shooting. 
         [0098]    The total length of full-size pool intended for speed swimming and shooting may comprise 65-70 m. For this purpose to 50 m pool should be attached the ballistic part  4  with length of 15-20 m. If in 50 m pool the ballistic part  4  is separated by the partition  6 , then length of the swimming part  12  comprises 30-35 m. If speed swimming is excluded, then for the underwater shooting gallery could be used 25 m pool, where the ballistic part  4  is separated by the partition  6  and the swimming part  12  that comprises 4-9 m is used for the shooting positions  9 . 
         [0099]      FIG. 3  shows longitudinal cross-section of 25 m pool of the underwater shooting gallery intended for shooting under the water and from the air into the water, and  FIG. 4  shows a top plan view of Aquatir pool. 
         [0100]    Aquatir comprises a water-filled pool  1  with a nosing  3 , ladders  25  and above-water walls  2 . A ballistic part  26  of the pool is separated by partitions  27  with underwater embrasures  28  through which from shooting positions  9  is performed underwater shooting. For access to above-water shooting positions  29  on the partition  27  is mounted a ladder  30 . For teaching in above-water shooting a weapon  31  could be installed by trainer on a mount  32 . To eliminate ricochet during pass of cavitating bullet or harpoon from the air into the water the arrangement of a target  33  should provide tilt angle ω of a trajectory  21  not less then 10° to horizon. As a target could be used an inflatable sphere  33  that is prevented from emergence by an anchor  34  and is suspended on a buoy  35  with radio-controlled engine that can move the target in horizontal plane. After hitting the sphere  33  bursts and all other target components are assembled with a new sphere. 
         [0101]    Walls of Aquatir behind the targets are covered with an underwater bullet-trap  10  and an above-water bullet-trap  11 . Depth  16  in the shallow part of the pool could be standard, while the standard depth  17  near the starting stands  7  should be more then depth  16  and should allow to install the targets  33  lower then the shooting positions  9  that provides negative angle of weapon pointing β relative to horizon  18  and tilt of shooting the trajectory  19  downward. For protection of inner lining of the pool in region of targets are mounted side screen  36  and bottom screens  37 , material of which depends on the kind of underwater weapons. 
         [0102]    The pool could be divided by standard ropes  13  attached to brackets  38 . Width of tracks  39  could be standard and shooting line  40  could coincide with track axis. 
         [0103]    To reduce effect on the shooter of reflected shock wave from underwater shot behind the shooting positions  9  are mounted sound-absorbing screens  41  that could be made as inflatable mattresses or could be made of sheet rubber and be attached under the water at the distance of 5-10 cm from a pool wall  42 . 
         [0104]    In the side tracks along side walls of the pool near shooting positions  9  are mounted sound-absorbing screens  43  that reduce effect on the shooter of reflected shock wave from underwater shot. 
         [0105]    Length  44  of the pool ballistic part  26  may comprise 16 m and is chosen taking into account that the underwater distance from the embrasure  28  to the target  33  is 15 m. Then length of the swimming part of the pool with shooting position  9  comprises 9 m. 
         [0106]    During teaching in underwater shooting the weapon could be installed in the embrasure  28  of the partition  27 . Shooting is performed with trainer who is located in the water in zone  46 . 
         [0107]    After completion of shooting the partitions  27  could be removed, and on the full length of the pool could be carried out trainings in swimming. 
         [0108]    Aquatir could be also arranged in 8-10 m pool. In this case the partitions  27  should be mounted at the distance of 2 meters from the pool wall  42  and thickness of the bullet-traps  10  and  11  should be increased. It is advisable to carry out shooting from the air into the water from the shooting position  29  equipped with a rubber coating. 
       INDUSTRIAL APPLICABILITY 
       [0109]    The invention will find its application in design of Aquatirs (shooting galleries-pools) intended for teaching, training and carrying out of sporting competitions in shooting under the water and from the air into the water from pneumatic and missile weapons and fire-arms, where also is possible combining of shooting with speed swimming. 
         [0110]    Structure of Aquatirs allows to create new aquatic sports:
       underwater biathlon that includes both speed swimming and underwater shooting against underwater targets;   underwater double-event that includes speed swimming and shooting against underwater targets under the water and from the air into the water;   competition in marksmanship for shooting against underwater targets under the water and from the air into the water.

Technology Classification (CPC): 5