Cockpit vision field evaluation test flight method suitable for troposphere manned airship

Abstract

The invention belongs to the technical field of flight test, and discloses a cockpit vision field evaluation test flight method suitable for a troposphere manned airship, which comprises the following steps: selecting an airship test condition; the airship climbs to a preset field height and keeps level flight; a preset flight test action is completed; and commenting by a flight tester, and filling in a cockpit vision field commenting card. According to the method, the blank of the flight test method for evaluating the visual field of the cockpit of the troposphere manned airship with the vector propulsion system is filled, and the flight test efficiency and the flight test quality of the manned airship are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of flight test, and particularly relates to a cockpit view evaluation test flight method suitable for a troposphere manned airship. BACKGROUND

[0002] The present application aims to provide a cockpit view evaluation test flight method for a troposphere manned airship with a vector propulsion system. The test flight of the airship needs to meet the requirements of repeatability and standardization, and the test flight weight gravity center, test flight program and test flight method need to be regulated to form unified verification requirements, improve the test flight efficiency and quality of the manned airship, and ensure the safety of the test flight. SUMMARY

[0003] The present application aims to provide a cockpit view evaluation test flight method suitable for a troposphere manned airship, which fills the blank of the cockpit view evaluation test flight method for a troposphere manned airship with a vector propulsion system, and improves the test flight efficiency and quality of the manned airship.

[0004] The technical solution of the present application is as follows: A cockpit view evaluation test flight method suitable for a troposphere manned airship, comprising the following steps: Step 1: selecting airship test conditions; Step 2: the airship climbs to a preset field height and keeps level flight; Step 3: the engine vector angle is 0°, the throttle is adjusted to the preset airspeed of the airship, the airship keeps level flight for a preset time; Step 4: the engine power is kept, the left pressure rod is adjusted to full stroke to make the airship left circle; the left circle is changed, the airship keeps level flight for a preset time; the right pressure rod is adjusted to full stroke to make the airship right circle; the right circle is changed, and the airship keeps level flight for adjustment; Step 5: the double-engine is pushed to the maximum continuous power and kept, the pull rod controls the elevator to make the airship continuously climb, when the pitch angle reaches a preset angle, the state is kept for a preset time; the push rod changes the state of lifting the head, and the airship keeps level flight at a height; Step 6: the double-engine maximum continuous power is kept, the push rod controls the elevator to make the airship continuously descend, when the pitch angle reaches a preset angle, the state is kept for a preset time; the pull rod changes the state of lifting the head, and the action is completed; Step 7: the test pilot makes comments, and fills in the cockpit view evaluation comment card.

[0005] As a further scheme of the present application, it is required to carry out test flight at least once in the morning, noon and dusk. As a further scheme of the present application, it further comprises the following steps: According to the cockpit view evaluation comment card, it is judged whether the cockpit view of the manned airship model is qualified. When the options on the cockpit view comment card are all "yes", the cockpit view evaluation flight test is completed; When the options on the cockpit view comment card appear at least once "no", repeat the first step to the seventh step of the flight test.

[0006] As a further scheme of the present application: the maximum static weight and normal center of gravity of the airship are selected in the first step as the test conditions.

[0007] As a further scheme of the present application: the preset field height in the second step is 500m-1000m.

[0008] As a further scheme of the present application: the preset air speed in the third step is 70km / h-V H left and right, and the preset time is about 30s.

[0009] As a further scheme of the present application: the left circle / right circle angle in the fourth step is 360°, and the preset time is about 30s.

[0010] As a further scheme of the present application: the preset angle in the fifth step is +30°, and the preset time is about 20s.

[0011] As a further scheme of the present application: the preset angle in the sixth step is -30°, and the preset time is about 20s.

[0012] The present application has the following beneficial effects: 1. The present application fills in the method for type qualification flight test of the cockpit view evaluation of the troposphere manned airship with a vector propulsion system, realizes a repeatable and standardized flight test scheme.

[0013] 2. The present application standardizes the test weight center of gravity, test procedure and test method, and forms unified verification requirements.

[0014] 3. The present application improves the flight test efficiency and quality of the cockpit view evaluation of the troposphere manned airship with a vector propulsion system, and ensures the safety of the flight test.

[0015] The present application will be described in further detail below in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a flowchart of the cockpit view evaluation flight test method for the troposphere manned airship according to the present application; Figure 2 Fig. 2 is a schematic diagram of the flight test comment card according to the present application. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be described in more detail below with reference to the accompanying drawings.

[0018] In the accompanying drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present invention.

[0019] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] The following is in conjunction with the appendix Figures 1-2 The embodiments of the present invention will be described in detail below.

[0021] Example 1 The following is the test flight process for assessing the cockpit visibility of a certain manned airship in the morning: 1) Before the test, set the weight, center of gravity position, etc. according to the test requirements; 2) The airship took off normally and climbed to an altitude of approximately 850m. 3) With the engine vector angle at 0°, push the throttle, and the airship reaches an airspeed of 70 km / h, maintaining level flight for 30 seconds; 4) Keep the throttle constant, push the stick to the left all the way, the airship will turn left 360°, then recover from the left turn and fly level for 32 seconds; push the stick to the right all the way, the airship will turn right 360°; recover from the right turn and fly level for about 60 seconds. 5) Push the throttle to the maximum, slowly pull back the stick to maintain the airship's climb, and hold the airship's pitch angle at +30° for about 20 seconds; after the airship recovers from the climb and enters level flight for about 30 seconds, slowly push the stick to maintain the airship's descent, and hold the airship's pitch angle at -30° for about 20 seconds. 6) The test pilot pulls back on the stick to recover from the glide to level flight, reduces the throttle to the indicated airspeed of about 60 km / h, adjusts the airship's status, and proceeds to the landing site according to the normal procedure. The test flight is now complete.

[0022] 7) The test pilot provides a qualitative assessment of the pilot's field of vision during flight and completes the cockpit field of vision assessment card.

[0023] Example 2 The following is the test flight process for assessing the cockpit visibility of a certain manned airship at noon: 1) Before the test, set the weight, center of gravity position, etc. according to the test requirements; 2) The airship took off normally and climbed to an altitude of approximately 1000m. 3) Engine vector angle 0°, push throttle, airship airspeed reaches 73 km / h, level flight for 30 s; 4) Keep throttle unchanged, bottom left pressure lever, airship left circles 360°, then change to left circle out, airship level flight for 30 s; bottom right pressure lever, airship right circles 360°; change to right circle out, airship keeps height, level flight for about 60 s; 5) Push maximum throttle, slowly pull lever to keep airship climbing, airship pitch angle reaches +30° and keeps for about 22 s; airship changes to climb out to level flight for about 30 s, slowly push lever to keep airship descending, airship pitch angle reaches -30° and keeps for about 21 s; 6) Test pilot changes to level flight by pulling lever, throttle is collected to about 60 km / h, airship state is adjusted, and landing is approached according to normal procedure, and test flight is completed.

[0024] 7) Test pilot qualitatively comments on the pilot's view during flight, and fills in the cockpit view comment card.

[0025] Example 3 The process of the evening (dusk) cockpit view assessment test flight of the manned airship is as follows: 1) Before the test, weight, center of gravity position and the like are set according to the test requirements; 2) The airship normally takes off and climbs to about 550 m; 3) Engine vector angle 0°, push throttle, airship airspeed reaches 72 km / h, level flight for 30 s; 4) Keep throttle unchanged, bottom left pressure lever, airship left circles 360°, then change to left circle out, airship level flight for 35 s; bottom right pressure lever, airship right circles 360°; change to right circle out, airship keeps height, level flight for about 60 s; 5) Push maximum throttle, slowly pull lever to keep airship climbing, airship pitch angle reaches +30° and keeps for about 22 s; airship changes to climb out to level flight for about 30 s, slowly push lever to keep airship descending, airship pitch angle reaches -30° and keeps for about 19 s; 6) Test pilot changes to level flight by pulling lever, throttle is collected to about 60 km / h, airship state is adjusted, and landing is approached according to normal procedure, and test flight is completed.

[0026] 7) Test pilot qualitatively comments on the pilot's view during flight, and fills in the cockpit view comment card, such as Figure 2 .

[0027] Thus, the purpose of the application is achieved.

[0028] The above merely preferred embodiments of the present application are not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for flight test of cockpit view assessment for tropospheric manned airship, characterized in that, The method comprises the following steps: Step 1: Selecting the test conditions of the airship; Step 2: The airship climbs to a preset field height and keeps flying horizontally; Step 3: The engine vector angle is 0°, the throttle is adjusted to the preset airspeed, and the airship keeps flying horizontally for a preset time; Step 4: The engine power is kept, the left pressure rod is adjusted to full stroke to make the airship left circle, the left circle is changed, the airship keeps flying horizontally for a preset time, the right pressure rod is adjusted to full stroke to make the airship right circle, and the airship keeps flying horizontally for adjustment; Step 5: The double-engine thrust is adjusted to the maximum continuous power and kept, the pull rod is adjusted to control the elevator, the airship continuously climbs, when the pitch angle reaches a preset angle, the state is kept for a preset time, the push rod is changed to the lifting state, and the airship keeps flying horizontally at a preset height; Step 6: The double-engine maximum continuous power is kept, the push rod is adjusted to control the elevator, the airship continuously slides, when the pitch angle reaches a preset angle, the state is kept for a preset time, and the pull rod is changed to the lifting state, and the action is completed; Step 7: The test pilot makes comments, and fills in the cockpit view comment card.

2. The method for flight test evaluation of the cockpit view of a stratospheric manned airship according to claim 1, characterized in that, It is required to carry out test flights at least once in the morning, noon and dusk.

3. The method for flight test evaluation of the cockpit field of view of a stratospheric passenger-carrying airship according to claim 2, characterized in that, The method further comprises the following steps: According to the cockpit view comment card, it is judged whether the cockpit view of the manned airship type is completed and qualified; When all the options on the cockpit view comment card are "Yes", the cockpit view evaluation test flight is completed; When at least one of the options on the cockpit view comment card is "No", the test flight steps 1-7 are repeated.

4. The method for flight test evaluation of the cockpit view of a stratospheric manned airship according to claim 2, characterized in that, In step 1, the maximum static weight and normal center of gravity of the airship are selected as the test conditions.

5. The method for flight test evaluation of the cockpit view of a stratospheric manned airship according to claim 2, characterized in that, In step 2, the preset field height is 500-1000 m.

6. The method for flight test evaluation of the cockpit view of a stratospheric manned airship according to claim 2, characterized in that, The preset airspeed in the third step is 70 km / h ~ V H The preset time is about 30 s.

7. The method for flight test evaluation of the cockpit view of the stratospheric passenger-carrying airship according to claim 2, characterized in that, In step 4, the left circle / right circle angle is 360°, and the preset time is about 30 s.

8. The method for flight test evaluation of the cockpit field of view of a stratospheric manned airship according to claim 2, characterized in that, In step 5, the preset angle is +30°, and the preset time is about 20 s.

9. The method for flight test evaluation of the cockpit view of a stratospheric passenger-carrying airship according to claim 2, characterized in that, In step 6, the preset angle is-30°, and the preset time is about 20 s.

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