A fixed-wing vertical take-off detection and operation drone
By installing a temperature and humidity pressure wind sensor and microwave rain radar on the back of the middle wing of the drone and setting up a holographic cloud drop spectrometer on the nose, the problem of difficulty in performing operation effect inspection by drones in the existing technology is solved, real-time data acquisition and accurate inspection of operation effect is achieved.
Patent Information
- Application Number
- CN202410548010.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2044-05-06
AI Technical Summary
The existing human shadow operation drones cannot mount other weather detection equipment because they have a flame splash spreader under the middle wing, making it difficult to conduct operation effect inspection during operation.
The temperature and humidity pressure wind sensor and microwave rain radar are installed on the back of the middle wing of the drone, and a holographic cloud drop spectrometer is installed on the nose to realize real-time cloud micro-physical state detection, and the operation effect inspection is achieved through the comparison before and after operation.
Without other drones equipped with meteorological detection equipment, more accurate real-time data can be obtained, accurate inspection of operation results, and improved data acquisition efficiency during operation.
Smart Images

Figure CN118457957B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of unmanned aerial vehicles (UAVs), in particular to a fixed-wing vertical take-off detection and operation UAV. Background Art
[0002] Weather modification drones can use airborne catalytic equipment to carry out artificial rain (snow) catalytic operations on typical cloud systems, thereby improving the service guarantee capabilities for rain (snow) enhancement in key ecological areas, forest fire prevention and control, greening projects, agricultural drought resistance and rain enhancement, and large-scale activities.
[0003] Among the existing artificial weather modification technologies, most aircraft used for shadow operations are manned aircraft. The spreaders are mostly placed at the lower part of the middle wing of the aircraft. Shadow aircraft can fly into the clouds to spread refrigerants, crystallizers, desiccant and water mist according to different cloud types.
[0004] Combining the existing technology of human shadow operation with aircraft, with the rapid development of drones today, for the above-mentioned related technologies, the existing human shadow drones have a flame spreader mounted under the middle wing of the aircraft, which occupies the mounting space under the middle wing. Therefore, other meteorological detection equipment is often not mounted. The evaluation of the artificial rain (snow) effect requires a wingman to fly with or be evaluated by ground detection equipment. Therefore, it is not easy for the existing human shadow operation drones to test the operation effect during the operation process. Summary of the invention
[0005] Based on this, the purpose of the present invention is to provide a fixed-wing vertical take-off detection and operation UAV to solve the technical problem that the existing human shadow operation UAV is not easy to perform operation effect inspection during the operation process.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixed-wing vertical detection and operation UAV, comprising a nose, a front end of the nose is connected to a canopy, and a middle wing is installed on the back, a holographic cloud drop spectrometer is slidably arranged inside the front end of the nose, a notch is arranged at the front end of the canopy for the detection part of the holographic cloud drop spectrometer to extend out, two parallel mounting racks are fixedly connected in the middle of the back of the middle wing, a first mounting bar is fixedly connected to the mounting rack, and a second mounting bar parallel to the first mounting bar is slidably connected along the length direction, a mounting plate is fixedly connected between the first mounting bar and the second mounting bar, and a temperature, humidity, pressure and wind sensor and a microwave rain radar are installed on the mounting plate.
[0007] By adopting the above technical solution, a temperature, humidity, pressure and wind sensor and a microwave rain radar are installed on the back of the UAV's mid-wing, and a holographic cloud droplet spectrometer is set on the nose of the UAV. Real-time cloud microphysical state detection can be performed during the flight of the UAV, and the operation effect can be verified by comparing before and after the operation. More accurate real-time data can be obtained without the need for other UAVs equipped with meteorological detection equipment to accompany the flight.
[0008] The present invention is further configured such that a slide groove is provided inside the front end of the machine head, a slide table is provided in the slide groove for sliding along the length direction of the machine head, a holographic cloud droplet spectrometer is fixedly connected to the slide table, the detection part of the holographic cloud droplet spectrometer faces the gap of the machine cover, and a sealing plate for closing the gap is fixedly connected to the detection part, and a limit block for preventing the sealing plate from sliding out of the machine head is fixedly connected to the front end of the machine head.
[0009] By adopting the above technical solution, the sliding of the holographic cloud droplet spectrometer is realized by utilizing the slide table sliding in the slide groove. When the holographic cloud droplet spectrometer needs to slide out for data measurement, the slide table is driven by the driving structure to slide toward the outside of the machine head.
[0010] The present invention is further configured such that the sealing plate is fixedly connected with two first connecting rods in the direction of the notch, the first connecting rod is rotatably connected to one end of the second connecting rod, the other end of the second connecting rod is fixedly connected with a baffle, the baffle is used to close the notch when the holographic cloud droplet spectrometer has not slid out, and the baffle is limited by a limiting block and cannot slide into the inside of the machine head.
[0011] By adopting the above technical solution, when the holographic cloud droplet spectrometer does not need to slide out, the baffle can play a good role in closing the gap, thereby maintaining a good aerodynamic shape at the front end of the UAV nose, effectively reducing the flight resistance of the UAV and increasing the UAV's hovering time.
[0012] The present invention is further configured such that waist holes are provided on both sides of the mounting plate at positions connected to the second mounting strips along the length direction of the mounting frame.
[0013] By adopting the above technical solution, the mounting plate can better adapt to the curvature of the drone's mid-wing while the second mounting bar slides to adjust its position, thereby obtaining a more stable mounting effect.
[0014] The present invention is further configured such that the belly of the middle wing is fixedly connected with fixed hanging points on both sides of the nose, and an adjustment hanging point is fixedly connected with one end of the fixed hanging point facing the tail of the nose, a rack structure is provided on the bottom surface of the adjustment hanging point, and a positioning block matching the rack structure is connected to the adjustment hanging point.
[0015] By adopting the above technical solution, the connection position of the hanging point is adjusted by using the positioning block on the adjustment hanging point, thereby achieving the effect of adjusting the installation center of gravity of the flame strip spreader.
[0016] The present invention is further configured such that the fixed hanging point is connected to the flame strip spreader via an oblique hanging rod, and the adjustable hanging point is connected to the flame strip spreader via a straight hanging rod at the positioning block.
[0017] By adopting the above technical solution, the head and tail ends of the flame strip spreader are connected by using an oblique hanging rod and a straight hanging rod respectively, so as to realize the smooth installation of the flame strip spreader.
[0018] The present invention is further configured such that side wings are connected to both sides of the middle wing, a frame is fixedly connected below the connection between the side wings and the middle wing, and a triangular tail wing is commonly connected to the rear end of the frame.
[0019] By adopting the above technical solution, the tail wing connected to the rear end of the frame and the middle wing and side wings of the UAV together form a stable fixed-wing structure, and stable flight of the fixed-wing is achieved under the impetus of the airflow generated by the propeller.
[0020] The present invention is further configured such that the frame is hollow and is provided with an openable hatch structure at the top, and the interior of the frame is used to accommodate batteries.
[0021] By adopting the above technical solution, the space inside the frame is effectively utilized, thereby providing more equipment installation space in the head for installing other meteorological observation equipment.
[0022] The present invention is further configured such that the bolts connecting the middle wing and the nose pass through both ends of the mounting frame at the same time, and the bolts connecting the middle wing and the side wings pass through the frame at the same time.
[0023] By adopting the above technical solution, while stably connecting the body structure of the drone, a further stable connection between the mounting frame and the frame is achieved. At the same time, the connecting bolts between the mounting frame and the frame on the drone can be saved, which can effectively reduce the weight of the drone.
[0024] The present invention is further configured such that a propeller is provided at the tail of the nose, and rotors are provided at both ends of the frame.
[0025] By adopting the above technical solution, the propellers arranged at the tail end of the nose are used to propel the UAV to fly, and the four sets of rotors arranged on the two frames enable the UAV to take off and land vertically.
[0026] In summary, the present invention mainly has the following beneficial effects:
[0027] 1. The present invention installs a temperature, humidity, pressure and wind sensor and a microwave rain radar on the back of the mid-wing of the UAV, and sets a holographic cloud droplet spectrometer on the nose of the UAV, so as to perform real-time cloud microphysical state detection during the flight of the UAV, and realize the inspection of the operation effect by comparing before and after the operation, and can obtain more accurate real-time data without the need for other UAVs equipped with meteorological detection equipment to accompany the flight;
[0028] 2. The present invention provides a notch at the front end of the drone's canopy and a holographic cloud drop spectrometer that can be extended in the nose. When the holographic cloud drop spectrometer is extended, the sealing plate provided at the front end of the holographic cloud drop spectrometer can seal the notch at the nose. During other flights of the drone, the holographic cloud drop spectrometer can be stored inside the nose, effectively reducing the resistance of the drone's flight, thereby enabling the drone to better complete the human shadow and detection tasks at the same time.
[0029] 3. The present invention provides fixed hanging points and adjustable hanging points on both sides of the mid-wing belly of the UAV, so that the mounting position of the flame spreader can be adjusted according to the actual center of gravity of the flame spreader when performing the human shadow mission, which can effectively improve the flight stability of the UAV;
[0030] 4. The present invention fixes two parallel mounting frames on the back of the mid-wing of the drone, fixes a mounting bar on the mounting frames, and slides another mounting bar along the length direction to adapt to mounting plates of different sizes by adjusting the position of the other mounting bar, thereby better meeting the installation requirements of different types of detection devices. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 A perspective view of the present invention;
[0032] Figure 2 Another perspective view of the present invention;
[0033] Figure 3 For the present invention Figure 2 A magnified view of middle;
[0034] Figure 4 An exploded view of the present invention;
[0035] Figure 5 For the present invention Figure 4 Enlarged view of middle B;
[0036] Figure 6 A three-dimensional diagram of the machine head of the present invention with the machine cover opened;
[0037] Figure 7 For the present invention Figure 6 Enlarged view of middle C;
[0038] Figure 8 It is a three-dimensional diagram of the internal structure of the machine head of the present invention;
[0039] Fig. 9 For the present invention Figure 8 Enlarged view of D in the middle.
[0040] In the figure: 1. nose; 2. mid-wing; 3. side wing; 4. frame; 5. tail wing; 6. rotor; 7. propeller; 8. cover; 9. notch; 10. baffle; 11. slide; 12. slide; 13. holographic cloud droplet spectrometer; 14. sealing plate; 15. first connecting rod; 16. second connecting rod; 17. limit block; 18. fixing frame; 19. mounting frame; 20. first mounting strip; 21. second mounting strip; 22. mounting plate; 23. waist hole; 24. microwave rain radar; 25. temperature, humidity and pressure wind sensor; 26. flame strip spreader; 27. fixed hanging point; 28. adjustable hanging point; 29. inclined hanging rod; 30. positioning block; 31. straight hanging rod. DETAILED DESCRIPTION
[0041] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0042] The following describes an embodiment of the present invention based on its overall structure.
[0043] Embodiment 1
[0044] A fixed-wing vertical take-off detection and operation drone, such as Figure 1-9 As shown, it includes a nose 1, in which a fixing frame 18 for installing a meteorological monitoring device is arranged, the front end of the nose 1 is connected with a cover 8, and a middle wing 2 is installed on the back. Specifically, in order to reduce wind resistance, the top surface of the cover 8 is an arc-shaped structure, and is connected to the nose 1 by a buckle, and a holographic cloud droplet spectrometer 13 is slidingly arranged inside the front end of the nose 1, and a notch 9 is arranged at the front end of the cover 8 for the detection part of the holographic cloud droplet spectrometer 13 to extend out.
[0045] See also Figure 1-4 , side wings 3 are connected to both sides of the middle wing 2, and a frame 4 is fixedly connected to the lower part of the connection between the side wings 3 and the middle wing 2, and a triangular tail 5 is commonly connected to the tail end of the frame 4. The tail 5 connected to the tail end of the frame 4 and the middle wing 2 and side wings 3 of the UAV together form a stable fixed-wing structure. Under the impetus of the airflow generated by the propeller 7, the stable flight of the fixed wing is achieved. A propeller 7 is arranged at the tail of the nose 1, and rotors 6 are arranged at both ends of the frame 4. Specifically, there are four groups of rotors 6. The propeller 7 arranged at the tail end of the nose 1 is used to drive the UAV to fly, and the four groups of rotors 6 arranged on the two frames 4 can enable the UAV to take off and land vertically.
[0046] See also Figure 4-7Two parallel mounting frames 19 are fixedly connected in the middle of the back of the middle wing 2. Specifically, the bottom surface of the mounting frame 19 fits with the back of the middle wing 2. A first mounting bar 20 is fixedly connected to the mounting frame 19, and a second mounting bar 21 parallel to the first mounting bar 20 is slidably connected along the length direction. A mounting plate 22 is fixedly connected between the first mounting bar 20 and the second mounting bar 21. A temperature, humidity, pressure and wind sensor 25 and a microwave rain radar 24 are installed on the mounting plate 22. Both sides of the mounting plate 22 are provided with waist holes 23 along the length direction of the mounting frame 19 at the position connected with the second mounting bar 21. The second mounting bar 21 slides to a suitable position on the mounting frame 19, and the connecting bolt passes through the waist hole 23 on the mounting plate 22 and is connected to the second mounting bar 21, so that the mounting plate 22 can better adapt to the curvature of the UAV middle wing 2 while the second mounting bar 21 slides to adjust its position, thereby obtaining a more stable installation effect.
[0047] See also Figure 1-4 The bolts connecting the middle wing 2 and the nose 1 pass through both ends of the mounting frame 19 at the same time, so that the mounting frame 19 can be stably fixedly connected to the back of the middle wing 2, and the bolts connecting the middle wing 2 and the side wings 3 pass through the frame 4 at the same time. Specifically, a plug-in structure is provided at the connection between the side wings 3 and the middle wing 2, and the bolts pass through the top of the middle wing 2, the plug-in structure of the middle wing 2 and the side wings 3, and the bottom of the middle wing 2 in sequence to complete the stable connection between the middle wing 2 and the side wings 3, saving the use of bolts, while stably connecting the body structure of the UAV, achieving further stable connection between the mounting frame 19 and the frame 4, and also saving the connecting bolts between the mounting frame 19 and the frame 4 connected to the UAV, which can effectively reduce the dead weight of the UAV. The frame 4 is hollow, and a hatch structure that can be opened is provided at the top. The interior of the frame 4 is used to accommodate batteries, which effectively utilizes the space inside the frame 4, thereby providing more equipment installation space in the nose 1 for installing other meteorological observation equipment.
[0048] Embodiment 2
[0049] A fixed-wing vertical take-off detection and operation drone, such as Figure 1-9As shown, on the basis of Example 1, the difference from Example 1 lies in that a slide groove 11 is provided inside the front end of the machine head 1, and a slide table 12 is slidably provided in the slide groove 11 along the length direction of the machine head 1. Specifically, a driving structure for driving the slide table 12 to move in the slide groove 11 is provided at one end of the slide table 12, which is specifically a linear guide structure in this embodiment, and a holographic cloud droplet spectrometer 13 is fixedly connected to the slide table 12, and the detection part of the holographic cloud droplet spectrometer 13 faces the gap 9 of the machine cover 8, and a sealing plate 14 for closing the gap 9 is fixedly connected to the detection part, and a limit block 17 for preventing the sealing plate 14 from sliding out of the machine head 1 is fixedly connected to the front end of the machine head 1, and the sliding of the holographic cloud droplet spectrometer 13 is realized by using the slide table 12 sliding in the slide groove 11, and when the holographic cloud droplet spectrometer 13 needs to slide out for data measurement, the slide table 12 is driven by the driving structure to slide toward the outside of the machine head 1.
[0050] See also Figure 6-9 The sealing plate 14 is fixedly connected with two first connecting rods 15 in the direction of the notch 9. The first connecting rod 15 is rotatably connected to one end of the second connecting rod 16. The other end of the second connecting rod 16 is fixedly connected with a baffle 10. The baffle 10 is used to close the notch 9 when the holographic cloud droplet spectrometer 13 has not slid out. The baffle 10 is limited by the limiting block 17 and cannot slide into the inside of the nose 1. When the holographic cloud droplet spectrometer 13 does not need to slide out, the baffle 10 can play a good role in closing the notch 9, thereby maintaining a good aerodynamic shape at the front end of the nose 1 of the UAV, effectively reducing the flight resistance of the UAV, and increasing the hovering time of the UAV.
[0051] Embodiment 3
[0052] A fixed-wing vertical take-off detection and operation drone, such as Figure 1-9 As shown, on the basis of embodiment 1, the difference from embodiment 1 is that the belly of the middle wing 2 is fixedly connected with fixed hanging points 27 on both sides of the nose 1, and an adjustment hanging point 28 is fixedly connected to the end of the fixed hanging point 27 facing the tail of the nose 1, and a rack structure is arranged on the bottom surface of the adjustment hanging point 28, and a positioning block 30 matching the rack structure is connected to the adjustment hanging point 28. Specifically, a rack is also arranged on the top surface of the positioning block 30 facing the direction of the adjustment hanging point 28, and the rack of the positioning block 30 can cooperate with the rack of the adjustment hanging point 28 to engage with each other, and a hole for the bolt to pass through is arranged at the center of the positioning block 30, and the adjustment hanging point 28 is provided with a long strip opening with a width equal to the opening diameter of the positioning block 30 along the length direction. The positioning block 30 on the adjustment hanging point 28 is used to adjust the connection position of the adjustment hanging point 28, thereby playing the effect of adjusting the installation center of gravity of the flame strip spreader 26. Specifically, the further back the position of the positioning block 30 is, the further back the center of gravity of the flame strip spreader 26 connected to the drone is.
[0053] See also Figure 1-4The fixed hanging point 27 is connected to the flame strip spreader 26 through the oblique hanging rod 29, and the adjustable hanging point 28 is connected to the flame strip spreader 26 through the straight hanging rod 31 at the positioning block 30. The oblique hanging rod 29 and the straight hanging rod 31 are respectively used to connect the head and tail ends of the flame strip spreader 26 to achieve the smooth installation of the flame strip spreader 26. Specifically, the flame strip spreader 26 is composed of a catalyst flame strip, an ignition controller, a flame strip generator and a connecting cable, wherein the catalyst flame strip is an effective consumable for artificial rainfall; the ignition controller is used to detect the resistance value of the flame strip and control the ignition; the flame strip generator is fixed to the wing of the rainfall-enhancing aircraft with a special clamp, which is used for loading and spreading the flame strip. After receiving the electrical signal from the ignition controller, the flame strip effectively spreads the catalyst to complete its rainfall-enhancing function.
[0054] The working principle of the present invention is as follows: after the UAV takes off and before the cloud data measurement is needed, the holographic cloud droplet spectrometer 13 arranged in the nose 1 does not need to move. At this time, the baffle 10 closes the gap 9. When the operation effect needs to be evaluated after the human shadow operation, the driving structure of the slide 12 drives the slide 12 to slide in the slide groove 11 toward the gap 9. Specifically, the driving structure of the slide 12 adopts the mature linear guide rail and linear slide structure in the prior art. The first connecting rod 15 pushes the second connecting rod 16 and the baffle 10 to slide outside the UAV until the sealing plate 14 contacts the limit block 17. At this time, the sealing plate 14 closes the gap 9, and the detection of the holographic cloud droplet spectrometer 13 The measuring part has been extended out of the nose 1 to carry out real-time data measurement. The temperature, humidity, pressure and wind sensor 25 and the microwave rain radar 24 on the back of the drone can collect data at any time during the flight of the drone. The second connecting rod 16 extending out of the nose 1 rotates around the rotating shaft connected to the first connecting rod 15 under the action of the airflow during flight to avoid blocking the detection part of the holographic cloud droplet spectrometer 13. When the holographic cloud droplet spectrometer 13 is used, the slide 12 slides in the opposite direction to reset, and the second connecting rod 16 slides into the nose 1 and rotates and resets under the obstruction of the cover 8 until the baffle 10 contacts the limit block 17. At this time, the recovery of the holographic cloud droplet spectrometer 13 is completed.
[0055] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A fixed-wing vertical detection and operation UAV, comprising a nose (1), a cover (8) connected to the front end of the nose (1), and a middle wing (2) installed on the back, characterized in that: A holographic cloud drop spectrometer (13) is slidably arranged inside the front end of the nose (1), a notch (9) is arranged at the front end of the cover (8) for the detection part of the holographic cloud drop spectrometer (13) to extend out, two mutually parallel mounting frames (19) are fixedly connected in the middle of the back of the middle wing (2), a first mounting bar (20) is fixedly connected to the mounting frame (19), and a second mounting bar (21) parallel to the first mounting bar (20) is slidably connected along the length direction, a mounting plate (22) is fixedly connected between the first mounting bar (20) and the second mounting bar (21), and a temperature, humidity, pressure and wind sensor (25) and a microwave rain radar (24) are installed on the mounting plate (22).
2. The fixed-wing vertical take-off detection and operation UAV according to claim 1, characterized in that: A slide groove (11) is provided inside the front end of the machine head (1), a slide table (12) is slidably provided in the slide groove (11) along the length direction of the machine head (1), a holographic cloud drop spectrometer (13) is fixedly connected to the slide table (12), a detection part of the holographic cloud drop spectrometer (13) faces the notch (9) of the machine cover (8), and a sealing plate (14) for closing the notch (9) is fixedly connected to the detection part, and a limit block (17) for preventing the sealing plate (14) from sliding out of the machine head (1) is fixedly connected to the front end of the machine head (1).
3. The fixed-wing vertical take-off detection and operation UAV according to claim 2, characterized in that: The sealing plate (14) is fixedly connected to two first connecting rods (15) in the direction of the notch (9); the first connecting rod (15) is rotatably connected to one end of a second connecting rod (16); the other end of the second connecting rod (16) is fixedly connected to a baffle (10); the baffle (10) is used to close the notch (9) when the holographic cloud droplet spectrometer (13) has not slid out; the baffle (10) is limited by a limiting block (17) and cannot slide into the interior of the machine head (1).
4. The fixed-wing vertical take-off detection and operation UAV according to claim 1, characterized in that: Both sides of the mounting plate (22) are provided with waist holes (23) at positions connected to the second mounting strip (21) along the length direction of the mounting frame (19).
5. The fixed-wing vertical take-off detection and operation UAV according to claim 1, characterized in that: The belly of the middle wing (2) is fixedly connected to fixed hanging points (27) on both sides of the nose (1), and an adjustment hanging point (28) is fixedly connected to one end of the fixed hanging point (27) facing the tail of the nose (1), and a rack structure is arranged on the bottom surface of the adjustment hanging point (28), and a positioning block (30) matched with the rack structure is connected to the adjustment hanging point (28).
6. The fixed-wing vertical take-off detection and operation UAV according to claim 5, characterized in that: The fixed hanging point (27) is connected to the flame spreader (26) via an oblique hanging rod (29), and the adjustable hanging point (28) is connected to the flame spreader (26) at the positioning block (30) via a straight hanging rod (31).
7. The fixed-wing vertical take-off detection and operation UAV according to claim 1, characterized in that: Both sides of the middle wing (2) are connected to side wings (3), and a frame (4) is fixedly connected below the connection between the side wings (3) and the middle wing (2), and the rear end of the frame (4) is commonly connected to a triangular tail wing (5).
8. The fixed-wing vertical take-off detection and operation UAV according to claim 7, characterized in that: The frame (4) is hollow and is provided with an openable hatch structure at the top; the interior of the frame (4) is used to accommodate batteries.
9. The fixed-wing vertical take-off detection and operation UAV according to claim 1, characterized in that: The bolts connecting the middle wing (2) and the machine head (1) pass through both ends of the mounting frame (19) at the same time, and the bolts connecting the middle wing (2) and the side wings (3) pass through the frame (4) at the same time.
10. The fixed-wing vertical take-off detection and operation UAV according to claim 9, characterized in that: A propeller (7) is arranged at the tail of the machine head (1), and rotors (6) are arranged at both ends of the frame (4).
Citation Information
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Unmanned precipitation increase airplane
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A Lightweight Vertical Take-Off Fixed-Wing Unmanned Aerial Vehicle (UAV) Aeromagnetic Total Field and Horizontal Gradient Measurement System
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