Delta wing coaxial contra-rotating ducted fan aircraft

Abstract

The invention relates to a delta wing coaxial contra-rotating ducted fan aircraft. The delta wing coaxial contra-rotating ducted fan aircraft is mainly composed of a coaxial contra-rotating ducted fanaircraft, a delta wing and an acceleration propulsion wing, wherein the coaxial contra-rotating ducted fan aircraft is characterized in that an engine, a variable speed pulley, a transmission belt and a console are arranged in a flight cabin, a landing gear is arranged at the lower side outside the flight cabin, a buffer device is arranged between the landing gear and the flight cabin, a circularcontrol flap disc is concentrically arranged below a coaxial contra-rotating ducted fan propeller system, the coaxial contra-rotating ducted fan propeller system and the control flap disc respectively fixedly sheathe the periphery of the middle upper part of a shell of the flight cabin up and down by virtue of a support, and axes of the coaxial contra-rotating ducted fan propeller system, the control flap disc and the flight cabin are longitudinally coincided; the delta wing sheathes the periphery of the coaxial contra-rotating ducted fan propeller system and the control flap disc of a coaxial contra-rotating ducted fan aircraft, so that the coaxial contra-rotating ducted fan aircraft is built in the delta wing; and the acceleration propulsion wing is arranged directly behind the delta wing opposite to the advancing direction of the aircraft.

Description

technical field [0001] The invention relates to the technical field of aircraft structure design and application, in particular to a delta-wing coaxial counter-rotating ducted aircraft. Background technique [0002] At present, fixed-wing aircraft need a runway to take off and land, and cannot stop in the air and stare at the theater environment during battlefield surveillance. Compared with fixed-wing aircraft, helicopters have the advantage of vertical take-off and landing and can hover, but the aerodynamic efficiency of helicopters is low, and the noise is loud when flying. It is easy to be found by the enemy during battlefield surveillance, and the wingtips are easy to hit when searching in the forest. The upper branches cause damage to the machine body, and the high-speed rotating propeller will cause injury to personnel. The motion of the propeller is decomposed into horizontal motion and rotational motion. When the propeller moves, the main resistances are air frict...

AI Technical Summary

Problems solved by technology

[0004] There have been many ducted aircrafts, but they are widely used as ducted tail rotors, and in some ducted aircrafts, the ducted fan is used as a lift fan, and an additional fan is required for thrust, so the current ducted aircraft Road aircraft are relatively large and complex in size, and the lift and thrust are derived from different fan systems.

The larger the diameter of the ducted fan, the greater its power. However, due to its structural characteristics, the diameter of the ducted fan is limited, so when the aircraft needs high-power lift, it is necessary to install more than two ducted fans. There is a problem of flight balance in aircraft with multiple ducts or multiple ducts

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