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A Flight Test Method for Required Navigation Performance

A technology of required navigation performance and navigation mode, applied in the direction of measuring devices, instruments, etc., can solve problems such as unsatisfactory, and achieve the effect of improving the evaluation and verification system

Active Publication Date: 2021-07-16
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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  • A Flight Test Method for Required Navigation Performance
  • A Flight Test Method for Required Navigation Performance
  • A Flight Test Method for Required Navigation Performance

Examples

Experimental program
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Effect test

Embodiment example

[0074] a) RNP navigation accuracy

[0075] figure 1 and figure 2 is the navigation accuracy TSE, NSE, FTE and flight trajectory of the RNP flight plan operation test flight;

[0076] b) RNP display logic

[0077] 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 kind of test flight method of required navigation performance, it is characterized in that, comprises the following steps: the first step, design flight test scheme, RNP test flight comprises terminal area RNP-1 and approach area RNP APCH test flight, specifically comprises following several Aspect: RNP flight plan operation function check, in the case that the RNP RAIM prediction meets the RNP operating conditions, perform a complete RNP approach operation consistent with the given state point, and suppress the VOR / DME navigation mode throughout the process, where: RAIM is satellite reliable AP is autopilot, FD is flight guidance, VOR is Vohr, DME is precision ranging, and FMS is flight management system; the flight management system navigation mode selection ability assessment is under the condition that the RNP RAIM prediction meets the RNP operating conditions. Execute the RNP approach operation consistent with the given status point, and suppress GPS, DME / DME in sequence, and observe the automatic transition logic of the navigation mode.

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 Patents(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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