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Required navigation performance-based trial flight method

A technology of required navigation performance and navigation mode, applied in measurement devices, instruments, etc., can solve problems such as inability to meet, and achieve the effect of improving the evaluation and verification system

Active Publication Date: 2018-03-09
CHINESE FLIGHT TEST ESTAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the RNP operation capability test flight has just started in the domestic new aircraft test flight, and there is no mature test flight method and related standards, which is obviously far from meeting the actual needs of our country to vigorously develop civil passenger aircraft and large transport aircraft

Method used

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  • Required navigation performance-based trial flight method
  • Required navigation performance-based trial flight method
  • Required navigation performance-based trial flight method

Examples

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Effect test

Embodiment example

[0075] a) RNP navigation accuracy

[0076] figure 1 with figure 2 It is the navigation accuracy TSE, NSE, FTE and flight trajectory of the RNP flight plan operation test flight, and the RNP operation capability under the RNP go-around and simulated single-engine failure is similar to it;

[0077] b) RNP display logic

[0078] image 3 It is the resolution change of the lateral deviation during the final approach of RNP, and other content can be checked and compared with the recorded video according to the airworthiness requirements.

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Abstract

The invention provides a required navigation performance-based trial flight method. The required navigation performance-based trial flight method is characterized by comprising the following steps: 1,designing a trial flight plan: RNP trial flight comprises terminal zone RNP-1 trial flight and approach zone RNP APCH trial flight and specifically comprises the following several aspects: RNP flightplan operation function check and flight management system navigation mode selection ability assessment, wherein in the RNP flight plan operation function check, under the condition that RNP RAIM prediction meets an RNP operation condition, complete RNP approach operation consistent with a given state point is performed and a VOR / DME navigation mode is suppressed in the whole process, RAIM is satellite reliability prediction, AP is automatic piloting, FD is flight direction, VOR is vor, DME is precision distance measurement and FMS is a flight management system; in the flight management system navigation mode selection ability assessment, under the condition that the RNP RAIM prediction meets the RNP operation condition, the RNP approach operation consistent with the given state point isperformed, GPS and DME / DME are sequentially suppressed, and an automatic conversion logic of the navigation mode is observed.

Description

technical field [0001] The invention belongs to the airworthiness certification flight test technology of civil aircraft and transport aircraft navigation systems, and in particular relates to a navigation system terminal area RNP-1 and approach area RNP APCH flight test method. Background technique [0002] RNP refers to the navigation performance accuracy required for an aircraft to operate within a defined route, airspace or area. It is a new technology that uses the aircraft's own onboard navigation equipment and global positioning system to guide the aircraft. It is a recognized trend of future navigation development in the international civil aviation industry. It is also a technology vigorously promoted by the Civil Aviation Administration of my country. It is also of great significance to the airworthiness of our military aircraft. It is one of the key subjects for civil aircraft navigation system test flight and military aircraft airworthiness test flight. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/00G01C25/005
Inventor 张少莉汤恒仁李超田琳阮先丽
Owner CHINESE FLIGHT TEST ESTAB
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