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Method for installing standby magnetic compass of airplane

An installation method and magnetic compass technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of installation error compensation correction, cumbersome error calibration method, easy failure, etc., achieve high precision calibration, reduce error calibration time, and simplify steps Effect

Pending Publication Date: 2021-11-19
中航西飞民用飞机有限责任公司
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AI Technical Summary

Problems solved by technology

It is difficult to accurately compensate and correct the installation error when the aircraft is calibrated before leaving the factory, resulting in cumbersome and prone to failure calibration methods

Method used

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  • Method for installing standby magnetic compass of airplane
  • Method for installing standby magnetic compass of airplane

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Embodiment Construction

[0010] The present embodiment is the installation method of the spare magnetic compass of certain aircraft, selects the installation plane 1 of spare magnetic compass 3 on the aircraft body as the calibration plane, if the installation plane of spare magnetic compass cannot place measuring equipment, can use auxiliary plate 10, The auxiliary flat plate 10 is parallel to the installation plane 1, and the auxiliary flat plate 10 is used as a horizontal calibration plane. Carry out horizontal calibration on the installation plane 1 of the spare magnetic compass again. First, level the aircraft; secondly, use an electronic protractor or a spirit level to perform horizontal and vertical horizontal calibration on the horizontal calibration plane. When the horizontal calibration plane is not horizontal, the The mounting plane 1 of the spare magnetic compass is fixed with the aircraft structure by increasing or decreasing the connection materials, such as peelable gaskets, etc., and ad...

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Abstract

The invention belongs to the field of aircraft aeronautical manufacturing, and relates to a method for installing a standby magnetic compass of an aircraft. The method is characterized in that aninstallation plane is selected as a horizontal calibration plane, and when a measuring tool cannot be placed on the installation plane, an auxiliary flat plate larger than the installation plane is placed on the installation plane to serve as the horizontal calibration plane for horizontal calibration. An installation datum line is manufactured by means of an airplane symmetrical structure near an installation plane, a scribed line mark is manufactured according to the installation datum line, and a standby magnetic compass is installed according to the scribed line mark. According to the method, the horizontal installation precision and the course installation precision of the standby magnetic compass can be effectively ensured, the subsequent compass error calibration step can be simplified, and the calibration time is shortened.

Description

technical field [0001] The invention relates to the field of aviation manufacturing, in particular to a method for installing an aircraft spare magnetic compass. Background technique [0002] The backup magnetic compass provides the pilot with magnetic heading information. In an emergency, the pilot relies on the heading information provided by the backup magnetic compass to fly. If the heading error is large, it is very likely to cause deviation and fail to reach the destination. At present, when the spare magnetic compass is installed on the aircraft, it is usually installed visually, and there is a large installation error. When the aircraft is calibrated before leaving the factory, it is difficult to accurately compensate and correct the installation error, which makes the method of differential calibration cumbersome and prone to failure. The method for installing the spare magnetic compass in the present invention can effectively ensure the installation accuracy of th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 王永鑫陈雷刘丽蓉付京龙杨高
Owner 中航西飞民用飞机有限责任公司
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