Vertical Take Off and Landing (VTOL) Aircraft with Vectored Thrust for Control and Continuously Variable Pitch Attitude in Hover

aerospace
Vertical Take Off and Landing (VTOL) Aircraft with Vectored Thrust for Control and Continuously Variable Pitch Attitude in Hover (LAR-TOPS-283)
A new type of VTOL aircraft that can change its hovering orientation
Overview
Most fixed wing VTOL UAVs takeoff vertically, then transition to horizontal flight. This is new type of UAV which has unique capability. It can vary its hover position from "nose up" (tailsitter) to "nose forward" (non-tailsitter) incrementally and continuously, and even hold a position at any angle in between.

The Technology
The aircraft operates by vectoring the thrust of three independent rotors (propellers). In addition, the vehicle can operate with only thrust vectoring and motor speed control to maintain vehicle attitude in hover and forward (wing born) flight. No other means of vehicle attitude control is required (i.e. ailerons, elevators, rudder), however these additional control surfaces could be added if vehicle control is desired in gliding (non-thrust) conditions.
CAD Model of Prototype Flight Vehicle View of Rotor Blade Tilt Range
Benefits
  • The vehicle airframe can be changed in hovering mode
  • The ability of the vehicle to hover in two or more orientations
  • The vehicle can maintain a constant altitude during flight the transitions

Applications
  • Landing / takeoff from an oscillating or sloped site
  • Pointing the fuselage at angles to augment the range of motion of an onboard camera
  • VTOL takeoff/landing in windy conditions
Technology Details

aerospace
LAR-TOPS-283
LAR-19157-1 LAR-19157-1-CON
11,014,664
Stay up to date, follow NASA's Technology Transfer Program on:
facebook twitter linkedin youtube
Facebook Logo Twitter Logo Linkedin Logo Youtube Logo