Water-air critical aircraft

An aircraft, water and air technology, applied in the field of water and air critical aircraft, can solve the problems of reducing water-to-ship viscous resistance, poor adaptability, poor acceleration performance, etc., and achieves good sonar stealth and good radar stealth. , the effect of high acceleration performance

Pending Publication Date: 2019-08-02
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Strictly speaking, the hydrofoil boat does not belong to the aircraft category. Through a set of hydrofoils, the draft of the boat is reduced during the driving process, the wetted area is reduced, and the viscous resistance of the water to the boat is reduced, thereby improving its performance to a certain extent. Driving speed and efficiency; the ground effect aircraft uses the ground effect to make it glide on the water surface, and takes advantage of the relatively flat water surface driving environment and parking environment, such as the "Caspian Sea Monster" ground effect aircraft of the former Soviet Union, but its acceleration performance is poor and the acceleration process is slow At the same time, the adaptability to special sea conditions is poor; conventional seaplanes are similar to ground-effect aircraft, and only use the good take-off, landing and parking conditions on the water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment is the implementation plan of the water-air critical aircraft of the present application using twin propeller propellers, including a fuselage 1, wings 2, course effect surfaces 3, longitudinal effect surfaces 4, buoys 5, and water propellers 6. The wings 2 are installed on both sides of the fuselage 1, the heading effect surface 3 is installed on the back of the fuselage 1, the longitudinal effect surface 4 is installed on both sides of the tail of the fuselage 1, the buoys 5 are installed on the wings 2 on both sides, and the water propeller 6 Installed on the tail.

[0028] Furthermore, the center of gravity of the water-air critical aircraft is located within the triangle formed by the buoyancy center of the body and the buoyancy centers of the buoys 5 on the left and right sides, so that the aircraft can float stably on the water surface.

[0029] Furthermore, the lift pressure center of the water-air critical aircraft is located behind the center o...

Embodiment 2

[0038] This embodiment is the implementation plan of the water-air critical aircraft of the application using the fishtail swing propeller, and the rest is the same as the first embodiment; the water propeller 6 is a fishtail swing propeller, and the fishtail swing propeller The tail swing is realized by the rod rocker mechanism, and the thrust is obtained through the interaction with the water during the swing.

Embodiment 3

[0039] Embodiment 3: This embodiment is the implementation plan of the water-air critical aircraft of the present application using a ducted water-absorbing propeller, and the rest are the same as in Embodiment 1; the water propeller 6 is a ducted water-absorbing propeller, and the ducted water-absorbing propeller The propeller is provided with a propeller in the duct, and the propeller makes water flow through the duct to obtain power. The wake of the aircraft is reduced through the ducted water-absorbing propeller, and the noise caused by the propeller is reduced at the same time.

[0040] To sum up, the water-air critical aircraft of the present application has the advantages of floating on the sea, hydrodynamic acceleration, and navigating in the air. Its acceleration performance can reach 2-3 times that of ordinary aircraft, and its speed in the cruising stage is about that of an underwater aircraft. 2 times faster than the cruising speed of the aircraft, but it has high ...

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PUM

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Abstract

The invention belongs to the field of aircraft design, and particularly relates to a water-air critical aircraft. The water-air critical aircraft comprises a fuselage, wings, a heading-effect face, longitudinal effect faces, pontoons and a water propeller; the wings are mounted on the two sides of the fuselage, and the heading-effect face is mounted on the back of the fuselage; the longitudinal effect faces are mounted on the two sides of the tail of the fuselage, and the pontoons are mounted on the wings on the two sides; and the water propeller is mounted at the tail. According to the water-air critical aircraft, through matching of the gravity center, the buoyant center and the pneumatic pressure center of the water-air critical aircraft, the water-air critical aircraft can float on water and fly close to the water surface; by using the water power propeller, the water-air critical aircraft has extremely high acceleration performance; by arranging the two pontoons, the water-air critical aircraft keeps stable navigation under the special sea conditions; in the cruising process, only the propeller exists in the water, and thus the water-air critical aircraft has good sonar invisibility; and the water-air critical aircraft gets close to the water surface when berthing and navigating, and thus has good radar invisibility.

Description

technical field [0001] The application belongs to the field of aircraft design, in particular to a water-air critical aircraft. Background technique [0002] In the field of water-air critical aircraft, the current mainstream aircraft in the world include hydrofoil boats, ground-effect aircraft and conventional seaplanes. Strictly speaking, the hydrofoil boat does not belong to the aircraft category. Through a set of hydrofoils, the draft of the boat is reduced during the driving process, the water-stained area is reduced, and the viscous resistance of water to the boat is reduced, thereby improving its performance to a certain extent. Driving speed and efficiency; the ground effect aircraft uses the ground effect to make it glide on the water surface, and takes advantage of the relatively flat water surface driving environment and parking environment, such as the "Caspian Sea Monster" ground effect aircraft of the former Soviet Union, but its acceleration performance is poo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C35/00
CPCB64C35/005B64C35/003
Inventor 王慧薛峰邢蓉
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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