Installation method of light helicopter fuel tank

Abstract

The invention relates to the technical field of helicopter part installation, in particular to an installation method of a light helicopter fuel tank, which comprises the following steps of: determining a gravity center position A of the fuel tank in a full oil state and a gravity center position B of the fuel tank in a vacant state; measuring an offset distance a between the gravity center position A and the gravity center position B in the same vertical plane, measuring an offset distance b between the gravity center position A and the gravity center position B in the same horizontal plane, and enabling the offset distance a to be smaller than the offset distance b; and determining a gravity center limit space, installing the fuel tank in the truss, and positioning the gravity center position A and the gravity center position B in the conical space measured in the step 3. The installation method of the light helicopter fuel tank is used for improving control over the gravity center of the whole helicopter body and the gravity center position of the fuel tank when the fuel tank and the truss are installed in a combined mode, reducing the influence of gravity center change of the fuel tank in the full oil or vacant state on the gravity center of the helicopter body, and improving the stability of a helicopter in the flying state.

Description

technical field [0001] The invention relates to the technical field of helicopter component installation, in particular to a method for installing a light helicopter fuel tank. Background technique [0002] A fuel tank is a container used to store liquid fuel (gasoline, kerosene, diesel) on a helicopter. It receives energy directly from the liquid fuel internal combustion engine. Usually, the fuel tank is installed on the side of the helicopter. It consists of a sealed box. The surface has a filler port and a filler cap, in addition, if necessary, an opening can be provided in the tank for the introduction of a sensor for monitoring the fuel level and its pressure. [0003] Currently, in light engine aircraft with piston engines, using high-octane gasoline, the fuel tanks are usually located outside the passenger cabin in an area of ​​minimal deformation in an emergency, and all fuel tanks must be able to withstand vibrations that may be affected by operating conditions, In...

AI Technical Summary

Problems solved by technology

Existing light helicopter fuel tanks are placed on one side of the fuselage using a traditional installation structure. During the flight of the helicopter, it is often accompanied by shaking and collision, which is not convenient for the stability of the center of gravity of the fuselage, and there are certain potential safety hazards

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