A Review on Vertical Take-Off and Landing (VTOL) Tilt-Rotor and Tilt Wing Unmanned Aerial Vehicles (UAVs)

Preliminary Design of a Tandem-Wing Tail-Sitter UAV Using Multi-Disciplinary Design Optimisation

The optimisation of a tail-sitter UAV (Unmanned Aerial Vehicle) that uses a stall-tumble manoeuvre to transition from vertical to horizontal flight and a pull-up manoeuvre to regain the vertical is investigated. The tandem wing vehicle is controlled in the hover and vertical flight phases by prop-wash over wing mounted control surfaces. It represents an innovative and potentially simple solutio...

Market Overview of the Vertical Take-Off and Landing Vehicles

Vertical Take-Off and Landing (VTOL) vehicles is a special class of Unmanned Aerial Vehicles (UAVs). This paper summarizes the current stage of VTOL design and market, and discusses VTOL growth and technical performance comparison. A database is presented to provide information concerning VTOL technical characteristics (maximum speed, payload, range, endurance, propulsion configurations), and V...

Quad Tilt Wing VTOL UAV: Aerodynamic Characteristics and Prototype Flight

A QTW VTOL UAV, featured tandem tilt wings and propellers mounted at the mid-span of each wing, is one of the most promising UAV configurations having both a VTOL capability and high cruise performance. A small prototype QTW UAV has been constructed to prove the concept and full transition between vertical and horizontal flight has been successfully demonstrated under remote manual control. The...

Autonomous Vertical Recovery of Fixed Wing Unmanned Aerial Vehicles

Dynamic Model and Control of a New Quadrotor Unmanned Aerial Vehicle with Tilt-Wing Mechanism

Abstract—In this work a dynamic model of a new quadrotor aerial vehicle that is equipped with a tilt-wing mechanism is presented. The vehicle has the capabilities of vertical take-off/landing (VTOL) like a helicopter and flying horizontal like an airplane. Dynamic model of the vehicle is derived both for vertical and horizontal flight modes using Newton-Euler formulation. An LQR controller for ...