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Test method for ditching towing tank of fixed-wing airplane model

A technology of aircraft model and test method, which is applied in the direction of fluid dynamic test, machine/structural component test, measuring device, etc., to achieve the effect of simple operation, reliable test result and wide application range

Active Publication Date: 2015-05-06
CHINA SPECIAL TYPE FLIER RES INST
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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of test method for the towing pool of a fixed-wing aircraft model ditc

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  • Test method for ditching towing tank of fixed-wing airplane model

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Abstract

The invention provides a test method for a ditching towing tank of a fixed-wing airplane model. The method is characterized by comprising the steps of a, testing and mounting a testing device and the fixed-wing airplane model; b, testing by the steps of recording the movement posture, the acceleration change condition of the head, middle and tail part, and the pressure change after the bottom is in contact with water, of the model through a gyro, an acceleration sensor and a pressure sensor in the model during the test, recording the movement of the fixed-wing airplane model (9) separated from the testing device through a video type recorder, including the change condition of water lines of the model after entering water, reachwater sliding condition, and static floating in water. The method has the advantages of being practical, feasible, simple to operate, reliable in test result, and wide in applicable scope.

Description

technical field [0001] The invention specifically relates to a test method for a towed pool of a fixed-wing aircraft model ditching on water. Background technique [0002] Due to the relatively long coastline of our country, for the large civil aircraft under development in our country, cross-sea flight is an essential capability, and it is inevitable to apply for airworthiness for ditching. According to the content of airworthiness certification stipulated in §25.801 ditching regulations in Part 25 of China Civil Aviation Regulations: Airworthiness Standards for Transport Aircraft CCAR25, all aircraft applying for ditching must meet the requirements of the regulations. Among them, regulation (C) requires that "the probable motion and state of the aircraft during ditching must be checked by model tests or comparison with an aircraft of similar configuration in which ditching characteristics are known." In our country, the research and development of large civil aircraft has...

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Application Information

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IPC IPC(8): G01M10/00
Inventor 何超许靖锋张家旭周奇李徐张科
Owner CHINA SPECIAL TYPE FLIER RES INST
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