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Comparison of Vertical and Bird Take-off Methods of Quad-Plane Miniature Aerial Vehicles
  • Sudath Munasinghe ,
  • A. A. J. K. Gunarathna
Sudath Munasinghe
University of Moratuwa

Corresponding Author:[email protected]

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A. A. J. K. Gunarathna
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Abstract

This paper compares the two take-off methods; vertical take-off and bird take-off for quad-plane unmanned aerial vehicles. Energy consumption and flying quality of the two methods are assessed. Often, the quad-plane aerial vehicles take off vertically using the quad mode, and when the reference altitude is reached the plane mode kicks in. The rarely used bird take-off mode, uses both quad and plane modes kick in together at the take-off so that the UAV gains the altitude and airspeed symultaneously lower energy. The experiments were carried out with a 1.35kg quad-plane on a two short flights conducted back-to-back under similar environmental conditions. It has been found from the flight data that the bird take-off helps quad-plane to fly 10.8\% more distance for a unit of energy than with the vertical take-off. It was also observed that the VTO method shows sudden altitude drop during the quad to plane control transition.