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Patent

Configuration for vertical take-off and landing system for aerial vehicles

Andrei Evulet
TLDR
In this article, a vehicle is coupled to a main body and a fluid generator, and at least one fore and one tail conduit are fluidly coupled to the generator and the primary airfoil element.
Abstract
A vehicle, includes a main body. A fluid generator is coupled to the main body and produces a fluid stream. At least one fore conduit and at least one tail conduit are fluidly coupled to the generator. First and second fore ejectors are fluidly coupled to the fore conduit, coupled to the main body and respectively coupled to a starboard side and port side of the vehicle. The fore ejectors respectively comprise an outlet structure out of which fluid flows. At least one tail ejector is fluidly coupled to the tail conduit. The tail ejector comprises an outlet structure out of which fluid flows. A primary airfoil element is coupled to the tail portion. A surface of the primary airfoil element is located directly downstream of the first and second fore ejectors such that the fluid from the first and second fore ejectors flows over the such surface.

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Citations
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Patent

Fluidic propulsive system

TL;DR: In this article, a propulsion system coupled to a vehicle is described, which consists of a convex surface, a diffusing structure coupled to the convex surfaces, and at least one conduit coupled with the vehicle.
Patent

Ejector and airfoil configurations

TL;DR: In this paper, a propulsion system coupled to a vehicle is described, which includes an ejector having an outlet structure out of which propulsive fluid flows at a predetermined adjustable velocity.
Patent

Propeller-less drone using flow of wind

Jin-Woo Lee, +1 more
TL;DR: In this paper, a drone with a wind guide, including a body, a single central inlet unit accommodated in the body, and configured to introduce wind therein, at least two pairs of wind guides, and at least four connecting ducts.
References
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Thrust vectoring mechanism

TL;DR: In this article, a cascade of four or more vanes (40) mounted across the outlet of a nozzle in a cascade arrangement are used to vector thrust and control discharge throat area.
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Active feedback loop to control body pitch in STOL/VTOL free wing aircraft

TL;DR: In this paper, an aircraft control system for controlling an aircraft, particularly a free wing aircraft in low speed or hover regimes, is described, where a rotational speed sensor measures air speed of the aircraft and outputs an air speed signal to a control processor which processes the air speed signals with a speed control input signal.
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VTOL UAV with lift fans in joined wings

TL;DR: In this article, a vertical takeoff and landing (VTOL) aircraft is described, which includes an elongated fuselage having a pair of forward swept wings and a pair rearward swept canards, the outer tips of which are respectively joined with a respective tip end portion of one of the forward swept wing.
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Propelling nozzle for the thrust vector control for aircraft equipped with jet engines

TL;DR: In this article, the upstream ends of at least two flaps (8, 12) actuated via lever-like adjusters are arranged to pivot simultaneously at different angles of rotation about spindles running across the nozzle axis (20) and between walls (22, 23).
Patent

Manned/unmanned V.T.O.L. flight vehicle

Otis Layton
TL;DR: In this article, the authors proposed a HOVTOL (Vertical Take-Off and Landing) aircraft that incorporates multiple vertical facing ducted fans (shrouded propellers) driven by at least one power plant.