Fire-fighting bomb cabin and aircraft

Abstract

The utility model discloses a fire-fighting bomb cabin and aircraft belongs to aircraft technical field, including a plurality of cabin body, the cabin body of fire-fighting bomb cabin has mutually parallel first ring beam and second ring beam, the both ends of support plate are lapped on the inner side of first ring beam and the inner side of second ring beam respectively, first ring beam and second ring beam are used for providing support for the cabin body, the supporting plates are used for supporting the fire extinguishing bombs, every two adjacent cabins are connected through the connecting tongues and the connecting grooves which are connected in an inserted mode, the connecting tongues and the connecting grooves are formed in the first ring beams and / or the second ring beams, modular splicing of the multiple cabins is achieved, different numbers of cabins are matched according to different fire behaviors, and the fire extinguishing efficiency of the fire-fighting aircraft is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an aircraft technical field especially relates to a fire-fighting bomb cabin and aircraft. BACKGROUND

[0002] The application of fire-fighting unmanned plane brings great convenience to fire fighting work, and the fire-fighting unmanned plane can fly to the upper air of the fire scene to throw fire extinguishing bombs, thereby realizing efficient fire extinguishing operation. However, the existing fire-fighting unmanned plane fire extinguishing bomb hanger has relatively limited fire extinguishing bomb loading capacity, and the number of fire extinguishing bombs carried by single carrying cannot meet the large-scale fire extinguishing demand when facing more serious fire. In this case, the flight frequency of the fire-fighting unmanned plane must be increased to supplement the fire extinguishing bomb throwing amount. However, frequent increase of flight frequency not only consumes a lot of time and energy, reduces the fire extinguishing efficiency, but also increases the risk of equipment failure due to long-time high-intensity work of the unmanned plane, and affects the smooth progress of the whole fire extinguishing action. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a fire-fighting bomb cabin and aircraft to solve the problem that the existing fire extinguishing bomb hanger cannot adapt to various different fire conditions.

[0004] The purpose of the utility model is achieved by adopting the following technical scheme:

[0005] A fire-fighting bomb cabin comprises a plurality of cabin bodies.

[0006] The cabin body comprises a supporting plate and first and second ring beams which are parallel to each other, and the two ends of the supporting plate are respectively overlapped on the inner sides of the first and second ring beams.

[0007] One of the two adjacent cabin bodies is provided with a connecting tongue, and the other is provided with a connecting groove, and the connecting tongue and the connecting groove are connected by insertion.

[0008] The connecting tongue is arranged on the first ring beam and / or the second ring beam, and the connecting groove is arranged on the first ring beam and / or the second ring beam.

[0009] Preferably, the cabin body comprises a plurality of partition plates which are arranged perpendicularly to the supporting plate and abut against each other, and the two ends of the partition plate are respectively connected to the inner sides of the first and second ring beams; the adjacent two partition plates have a bomb storage slide way therebetween.

[0010] Preferably, the cabin body comprises two longitudinal beams which are parallel to each other, the longitudinal beams are arranged perpendicularly to the first ring beam, the two longitudinal beams are respectively located on the two sides of the first ring beam, and the two ends of the longitudinal beam are respectively connected to the first and second ring beams.

[0011] Preferably, the cabin body comprises two connecting beams, which are arranged in parallel with the first ring beam and between the first ring beam and the second ring beam; each of the connecting beams corresponds to one of the longitudinal beams, one end of the connecting beam is connected to the longitudinal beam, and the other end of the connecting beam is connected to the supporting plate.

[0012] Preferably, the cabin body comprises a plurality of supporting columns, which are arranged on the inner side of the first ring beam and / or the second ring beam, and two ends of each of the supporting columns are connected to two inner wall surfaces arranged oppositely in the first ring beam and / or the second ring beam.

[0013] The supporting columns are arranged along the arrangement direction of the plurality of cabin bodies.

[0014] Preferably, the connecting beam of one of the two adjacent cabin bodies is provided with a protruding structure, and the connecting beam of the other cabin body is provided with a recessed structure, and the protruding structure is embedded in the recessed structure.

[0015] Preferably, the middle part of the supporting plate is provided with a bomb-throwing hole, and the two adjacent cabin bodies are connected through the bomb-throwing hole.

[0016] The bomb-throwing hole of the lowermost cabin body is provided with a cylindrical net.

[0017] Preferably, the middle part of the partition plate is provided with a bomb-passing channel, and the two sides of the bomb-passing channel are provided with the bomb-storing slide; the bomb-storing slide and the bomb-passing channel are provided with a bomb-throwing device for blocking or releasing the fire extinguishing bomb.

[0018] Preferably, the cabin body comprises an outer shell, the partition plate, the first ring beam and the second ring beam are arranged in the outer shell, the outer shell is provided with an opening opposite to the bomb-storing slide, and the opening is provided with a door body rotatably connected to the outer shell.

[0019] Preferably, the outer shell is provided with an observation window, the observation window is arranged adjacent to the opening, and the observation window is arranged opposite to the bomb-storing slide.

[0020] In order to solve the same technical problem, the utility model also provides an aircraft, which comprises the fire bomb cabin.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] The cabin body of the fire-fighting bomb cabin has first and second ring beams which are parallel to each other, and the two ends of the supporting plate are respectively overlapped on the inner side of the first ring beam and the inner side of the second ring beam, the first and second ring beams are used for providing support for the cabin body, and the supporting plate is used for supporting the fire extinguishing bomb, and the adjacent two cabin bodies are connected through the connecting tongue and the connecting groove which are arranged on the first and / or second ring beams, so that the modular splicing of multiple cabin bodies is realized, different numbers of cabin bodies are matched according to different fire conditions, and the fire extinguishing efficiency of the fire-fighting aircraft is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is one of the overall structure schematic diagrams of the fire-fighting bomb cabin of the utility model;

[0024] Figure 2 It is the second overall structure schematic diagram of the fire-fighting bomb cabin of the utility model;

[0025] Figure 3 It is the internal structure schematic diagram of the cabin body of the fire-fighting bomb cabin of the utility model;

[0026] Figure 4 It is the second internal structure schematic diagram of the cabin body of the fire-fighting bomb cabin of the utility model;

[0027] Figure 5 It is the third internal structure schematic diagram of the cabin body of the fire-fighting bomb cabin of the utility model;

[0028] Figure 6 It is the first skeleton structure schematic diagram of the cabin body of the fire-fighting bomb cabin of the utility model;

[0029] Figure 7 It is the fourth internal structure schematic diagram of the cabin body of the fire-fighting bomb cabin of the utility model;

[0030] Figure 8 It is the second skeleton structure schematic diagram of the cabin body of the fire-fighting bomb cabin of the utility model;

[0031] Figure 9 It is Figure 3 The enlarged schematic diagram of the A part in the middle;

[0032] Figure 10 It is Figure 7 The enlarged schematic diagram of the B part in the middle;

[0033] Figure 11 It is Figure 1 The enlarged schematic diagram of the C part in the middle;

[0034] In the figure: 10, cabin body; 11, connecting tongue; 12, connecting groove; 13, partition plate; 13a, ammunition storage slide; 13b, ammunition passing channel; 14, bomb launching device; 15, outer shell; 16, door body; 17, observation window; 20, first ring beam; 30, second ring beam; 40, supporting plate; 41, bomb launching hole; 42, net bag; 50, longitudinal beam; 60, connecting beam; 61, protruding structure; 62, recessed structure; 70, supporting column. DETAILED DESCRIPTION

[0035] For the purpose of facilitating the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0036] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments of the present application and is not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0038] Example 1

[0039] In combination Figures 1 to 11 As shown, the fire-fighting bomb cabin of the present application is schematically shown, which includes a plurality of cabin bodies 10, and each cabin body 10 can load existing fire extinguishing bombs.

[0040] Among them, in combination Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, the cabin body 10 comprises a supporting plate 40 and first and second ring beams 20 and 30 which are parallel to each other, the two ends of the supporting plate 40 are respectively overlapped on the inner sides of the first and second ring beams 20 and 30, the supporting plate 40 is used to support a plurality of fire extinguishing bombs, the first and second ring beams 20 and 30 can not only be used to support the supporting plate 40, but also be used to support the entire cabin body 10, so that the cabin body 10 maintains its shape structure, and other force transmission components or load bearing components in the cabin body 10 can be connected to the first and / or second ring beams 20 and 30.

[0041] As shown in combination Figure 3 , Figure 7 , Figure 9 and Figure 10 , one of the two adjacent cabin bodies 10 is provided with a connecting tongue 11, and the other is provided with a connecting groove 12, the connecting tongue 11 and the connecting groove 12 are connected by insertion, thereby quickly connecting the two adjacent cabin bodies 10, at the same time, the connecting tongue 11 and the connecting groove 12 can also prevent the two adjacent cabin bodies 10 from being abnormally misaligned, so as to facilitate quick positioning and connection. The connecting tongue 11 is arranged on the first and / or second ring beams 20 and 30, and the connecting groove 12 is arranged on the first and / or second ring beams 20 and 30, therefore, the two adjacent cabin bodies 10 can transmit force through the connecting tongue 11 and the connecting groove 12 and act on the first and / or second ring beams 20 and 30 of each cabin body 10, the first and second ring beams 20 and 30 are load bearing structures and can transmit force between the cabin bodies 10.

[0042] Especially, when the number of cabin bodies 10 is two, the two cabin bodies 10 are stacked one above the other, the top of the upper cabin body 10 is connected to the fuselage of the aircraft, and the bottom of the lower cabin body 10 is connected to the landing gear of the aircraft, more specifically, the top of the first and second ring beams 20 and 30 of the upper cabin body 10 is connected to the fuselage by existing bolts or similar connecting members, and the bottom of the first and second ring beams 20 and 30 of the lower cabin body 10 is connected to the landing gear by existing bolts, buckles or other connecting members. When the aircraft is placed on the ground, the weight of the aircraft itself and the weight of the cabin body 10 are transmitted to the lowermost landing gear by the first and second ring beams 20 and 30 of the cabin body 10, in other words, the first and second ring beams 20 and 30 of the cabin body 10 not only serve to maintain the shape of the cabin body 10, but also need to support the aircraft above.

[0043] The plurality of cabin bodies 10 can be assembled together, which can be modularly assembled, adapt to different fire conditions, and facilitate disassembly and maintenance of the cabin bodies 10. For example, when the number of cabin bodies 10 is two, the upper and lower cabin bodies 10 can be separated, and the interiors of the two cabin bodies 10 can be maintained and repaired respectively. In the prior art, the existing cabin bodies 10 are of an integral structure, and the shell is difficult to disassemble, which is low in maintenance efficiency. In addition, various sensors and / or control boxes are arranged in the cabin body 10, and maintenance personnel cannot observe the indicator lights on the sensors and / or control boxes through the existing cabin body 10, which is difficult to repair the electrical equipment in the cabin body. The cabin body 10 of the present application is provided with a transparent observation window 17, so that the maintenance personnel can observe the indicator lights on the sensors and / or control boxes through the observation window 17.

[0044] Further, as shown in Figure 6 and Figure 8 The cabin body 10 includes two longitudinal beams 50 and two connecting beams 60, the longitudinal beams 50 are arranged perpendicular to the first ring beam 20, of course, the longitudinal beams 50 are also arranged perpendicular to the second ring beam 30, the two longitudinal beams 50 are respectively located on both sides of the first ring beam 20 (the second ring beam 30), and the two ends of the longitudinal beams 50 are respectively connected to the first ring beam 20 and the second ring beam 30. The longitudinal beams 50 are arranged to connect the first ring beam 20 and the second ring beam 30, and the longitudinal beams 50, the first ring beam 20 and the second ring beam 30 jointly constitute the framework of the cabin body 10. The longitudinal beams 50 can also improve the torsional resistance of the cabin body 10 to prevent the first ring beam 20 and the second ring beam 30 from relative torsion.

[0045] In some optional embodiments, the connecting beams 60 are arranged parallel to the first ring beam 20, and the connecting beams 60 are located between the first ring beam 20 and the second ring beam 30. Each connecting beam 60 corresponds to a longitudinal beam 50, one end of the connecting beam 60 is connected to the longitudinal beam 50, and the other end of the connecting beam 60 is connected to the supporting plate 40. The connecting beams 60, the longitudinal beams 50, the first ring beam 20 and the second ring beam 30 jointly constitute the framework of the cabin body 10, and the connecting beams 60 can connect the supporting plate 40 and the longitudinal beams 50, so that the supporting plate 40 can support a larger number or heavier fire extinguishing bombs. In other optional embodiments, as shown in Figure 6 and Figure 8The cabin body 10 can also have four longitudinal beams 50 parallel to each other, two of which are arranged on one side of the first ring beam 20, and the other two are arranged on the other side of the first ring beam 20, and the two ends of the connecting beam 60 are connected to the two longitudinal beams 50 on one side of the first ring beam 20. In this case, the arrangement of the connecting beam 60 can improve the stability of the two longitudinal beams 50, thereby improving the rigidity of the framework of the cabin body 10. Among them, the connecting beam 60 of one of the two adjacent cabin bodies 10 is provided with a protruding structure 61, and the connecting beam 60 of the other is provided with a recessed structure 62, and the protruding structure 61 is embedded in the recessed structure 62. For example, when the two cabin bodies 10 are stacked one above the other, the protruding structure 61 of the connecting beam 60 of the cabin body 10 located above is embedded in the recessed structure 62 of the connecting beam 60 of the cabin body 10 located below. The protruding structure 61 and the recessed structure 62 can prevent the connecting beams 60 of the two cabin bodies 10 stacked one above the other from being misaligned, and at the same time, the connecting beams 60 of the two cabin bodies 10 stacked one above the other can be detachably connected by existing bolts and other connecting members.

[0046] In combination with Figure 6 and Figure 8 As shown in the drawings, in order to improve the load-bearing performance of each cabin body 10 when a plurality of cabin bodies 10 are connected by stacking one above the other, the cabin body 10 comprises a plurality of support columns 70, which are located on the inner side of the first ring beam 20 and / or the second ring beam 30, and the two ends of the support column 70 are connected to the two inner walls of the first ring beam 20 and / or the second ring beam 30 arranged opposite to each other, and the support column 70 is arranged along the arrangement direction of the plurality of cabin bodies 10. In this embodiment, each cabin body 10 is provided with four support columns 70, two of which are located on the inner side of the first ring beam 20, and the other two are located on the inner side of the second ring beam 30. Taking the first ring beam 20 as an example (the second ring beam 30 is similar), the end of the support column 70 is connected to the inner wall of the first ring beam 20. The support column 70 can prevent the first ring beam 20 from collapsing inward. When a plurality of cabin bodies 10 are connected by stacking one above the other, the support columns 70 of the cabin body 10 located above are aligned with the support columns 70 of the cabin body 10 located below. The support column 70 can transmit the force of the two cabin bodies 10 stacked one above the other, so as to reduce the load of the first ring beam 20 or the second ring beam 30, and improve the load-bearing performance of the entire cabin body 10.

[0047] Embodiment 2

[0048] In combination with Figure 4 , Figure 5 and Figure 7The difference between the present embodiment and embodiment 1 is that the cabin 10 comprises an outer shell 15 and a plurality of partition plates 13, which are arranged perpendicularly to the supporting plate 40 and abut against each other. In the present embodiment, the bottom of the partition plate 13 is connected to the supporting plate 40 by a magic tape, which makes the two parts easier to separate for the purpose of maintenance or replacement of the partition plate 13. The two ends of the partition plate 13 are connected to the inner side of the first ring beam 20 and the inner side of the second ring beam 30, respectively. Between two adjacent partition plates 13, there is a bullet storage slide 13a. The gravity of the partition plate 13 can be transmitted to the first ring beam 20 and the second ring beam 30, which support the partition plate 13. A plurality of fire extinguishing bullets can be stored in the bullet storage slide 13a. The middle part of the supporting plate 40 is provided with a bullet launching hole 41. The middle part of the supporting plate 40 is lower than the two sides, which makes the fire extinguishing bullets slide to the bullet launching hole 41 in the middle part of the supporting plate 40 under the action of gravity, so as to achieve bullet launching. In the prior art, the fire extinguishing bullets are hung in the cabin 10. The vibration generated during the flight of the aircraft can cause the fire extinguishing bullets to shake in the cabin 10, which affects the flight stability and even easily damages the fire extinguishing bullets. The arrangement of the bullet storage slide 13a makes the fire extinguishing bullets only slide in the bullet storage slide 13a. The bullet storage slide 13a limits the freedom of the fire extinguishing bullets. When the bullet storage slide 13a is full of fire extinguishing bullets, the fire extinguishing bullets will not shake or knock due to the flight bumping, so as to enable the aircraft to fly stably.

[0049] When a plurality of cabins 10 are stacked one above another, two adjacent cabins 10 are connected through the bullet launching hole 41. The fire extinguishing bullets in the upper cabin 10 can fall into the lower cabin 10 through the bullet launching hole 41 of the upper cabin 10 and be launched to the outside through the bullet launching hole 41 of the lower cabin 10. The bullet launching hole 41 of the lowermost cabin 10 is provided with a cylindrical net 42. The arrangement of the net 42 can correct the posture of the fire extinguishing bullets that roll into the bullet launching hole 41, so as to reduce the kinetic energy accumulated by the fire extinguishing bullets when they slide in the bullet storage slide 13a, and further reduce the deviation of the fire extinguishing bullets when they fall from the bullet launching hole 41, thereby improving the bullet launching precision.

[0050] Further, the partition plate 13, the first ring beam 20 and the second ring beam 30 are all located in the shell 15, the shell 15 is provided with an opening opposite to the bullet storage slide 13a, the opening is provided with a door body 16 rotationally connected with the shell 15, and the maintenance personnel can open the door body 16 and supplement the fire extinguishing bullets into the cabin 10 through the opening. The middle part of the partition plate 13 is provided with a bullet passing channel 13b, and the bullet passing channel 13b is provided with the bullet storage slide 13a on both sides. The bullet passing channel 13b and the bullet storage slide 13a are vertically arranged. The bullet passing channel 13b and the bullet storage slide 13a are provided with a bullet launching device 14 for blocking or releasing the fire extinguishing bullets. The bullet launching device 14 can move to prevent or release the fire extinguishing bullets. When the bullet launching device 14 releases the fire extinguishing bullets, the fire extinguishing bullets fall in the bullet storage slide 13a under the action of gravity, and then fall into the bullet passing channel 13b and then fall into the bullet launching hole 41.

[0051] The observation window 17 is arranged on the shell 15, the shape of the observation window 17 is preferably rectangular, and the observation window 17 is arranged adjacent to the door body 16 (the opening of the shell 15). The number of the observation window 17 can be multiple, each observation window 17 corresponds to a bullet storage slide 13a and is arranged opposite to the bullet storage slide 13a. This allows the maintenance personnel to observe the indicator light on the electrical equipment (the electrical equipment can be a control box arranged in the cabin 10, can be a bullet storage amount sensor for detecting the number of fire extinguishing bullets, or can be the bullet launching device 14) in the bullet storage slide 13a through the observation window 17.

[0052] Embodiment 3

[0053] The embodiment discloses an aircraft, which comprises a fuselage, a landing gear and a fire bomb cabin as described above. The fire bomb cabin has a plurality of cabin bodies 10, the plurality of cabin bodies 10 are connected in a stacked manner, the cabin body 10 at the top is connected to the fuselage through the first ring beam 20 and the second ring beam 30 thereof, and the cabin body 10 at the bottom is connected to the landing gear through the first ring beam 20 and the second ring beam 30 thereof.

[0054] In summary, the cabin body 10 of the fire bomb cabin has the first ring beam 20 and the second ring beam 30 which are parallel to each other, the two ends of the supporting plate 40 are respectively overlapped on the inner side of the first ring beam 20 and the inner side of the second ring beam 30, the first ring beam 20 and the second ring beam 30 are used for providing support for the cabin body 10, and the supporting plate 40 is used for supporting the fire extinguishing bullets. The adjacent two cabin bodies 10 are connected through the connecting tongue 11 and the connecting groove 12 which are connected in a plug-in manner, the connecting tongue 11 and the connecting groove 12 are arranged on the first ring beam 20 and / or the second ring beam 30, the modular splicing of the plurality of cabin bodies 10 is realized, different numbers of cabin bodies 10 are matched according to different fire conditions, and the fire extinguishing efficiency of the fire fighting aircraft is improved.

[0055] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made according to the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A fire-fighting capsule, characterized in that, The cabin body comprises a plurality of support plates and a first ring beam and a second ring beam which are parallel to each other, and the two ends of the support plate are respectively overlapped on the inner side of the first ring beam and the inner side of the second ring beam. One of the two adjacent cabin bodies is provided with a connecting tongue, and the other is provided with a connecting groove, and the connecting tongue and the connecting groove are connected by insertion. The connecting tongue is arranged on the first ring beam and / or the second ring beam, and the connecting groove is arranged on the first ring beam and / or the second ring beam. The cabin body comprises a plurality of partition plates which are arranged perpendicular to the support plate and abut against each other, and the two ends of the partition plate are respectively connected to the inner side of the first ring beam and the inner side of the second ring beam.

2. The fire bomb capsule of claim 1, wherein, The cabin body comprises two longitudinal beams which are arranged perpendicular to the first ring beam, and the two longitudinal beams are respectively located on the two sides of the first ring beam, and the two ends of the longitudinal beam are respectively connected to the first ring beam and the second ring beam.

3. The fire bomb capsule of claim 1, wherein, The cabin body comprises two connecting beams which are arranged parallel to the first ring beam, and the connecting beam is located between the first ring beam and the second ring beam; each connecting beam corresponds to a longitudinal beam, one end of the connecting beam is connected to the longitudinal beam, and the other end of the connecting beam is connected to the support plate.

4. The fire bomb capsule of claim 3, wherein, The cabin body comprises a plurality of support columns which are located on the inner side of the first ring beam and / or the second ring beam, and the two ends of the support column are respectively connected to the two inner wall surfaces arranged opposite to each other in the first ring beam and / or the second ring beam.

5. The fire bomb capsule of claim 1, wherein, The support column is arranged along the arrangement direction of the plurality of cabin bodies. One of the two adjacent cabin bodies is provided with a protruding structure, and the other is provided with a recessed structure, and the protruding structure is embedded in the recessed structure.

6. The fire bomb capsule of claim 4, wherein, The middle part of the support plate is provided with a bomb throwing hole, and the two adjacent cabin bodies are connected through the bomb throwing hole.

7. The fire bomb capsule of claim 1, wherein, The bomb throwing hole of the lowermost cabin body is provided with a cylindrical net. The middle part of the partition plate is provided with a bomb passing channel, and the two sides of the bomb passing channel are provided with the bomb storage slide; the bomb storage slide and the bomb passing channel are provided with a bomb throwing device for blocking or releasing fire extinguishing bombs.

8. The fire bomb capsule of claim 2, wherein, The cabin body comprises an outer shell, and the partition plate, the first ring beam and the second ring beam are located in the outer shell, and the outer shell is provided with an opening which is arranged opposite to the bomb storage slide, and the opening is provided with a door body which is rotatably connected to the outer shell.

9. The fire bomb capsule of claim 2, wherein, The outer shell is provided with an observation window which is arranged adjacent to the opening and opposite to the bomb storage slide.

10. The fire bomb capsule of claim 9, wherein, The fire-fighting bomb cabin comprises the fire-fighting bomb cabin according to any one of claims 1 to 9.

11. An aircraft characterized by, ​

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