Mar 8, 2022 · The drag of a body moving through a fluid is a force, acting in the opposite direction to the motion of the body, and causing a decrease in the velocity of the body. Like lift, drag acts on the center of pressure and is dependent on the shape and size of …

Jan 3, 2023 · The aim of this study was first to investigate the influence of mass and shape on the drag of a quadrotor, and second to propose a method to estimate this drag coefficient from flight data. This parameter is crucial for wind estimation, but …

Jan 5, 2025 · Key factors influencing energy efficiency include the drone’s weight, with heavier drones requiring more lift and, consequently, more energy; propeller efficiency, where optimized blade designs minimize energy loss; and aerodynamics, as streamlined frames help reduce drag.

Jun 10, 2021 · It is used to initially size an unmanned aircraft for a typical reconnaissance mission. The improved parasitic drag estimation yields a much heavier unmanned aircraft when compared to the sizing results using available drag data of manned aircraft.

Drag is the resistance a drone encounters from the air as it flies; minimizing drag is crucial for enhancing efficiency. Drones manipulate these forces through sophisticated propulsion systems and agile design: Fixed-Wing Drones: These drones generate lift through static wings and thrust via propellers or jet engines.

Jul 27, 2023 · An electric consumer drone designed for a very simple mission, with a fixed and constant payload, can probably be brought to market without a profound understanding of its lift and drag curves; after all, its range and endurance could be established simply by flying the vehicle to battery exhaustion in a range of conditions, which would place a ...

Light-weight models to represent accuratly the physics of forward flight are proposed. One significant finding is that the design opti-mization code enables to rapidly obtain a design for a given set of requirements and has been validated on the Parrot ANAFI USA.

Apr 1, 2020 · The drag due to lift depends on the lift coefficient and consists of the change in parasitic drag when an aerial vehicle produces lift, plus the induced drag from the wings and other lifting surfaces.

Jun 10, 2021 · The paper presents the derivation of a new equivalent skin friction coefficient for estimating the parasitic drag of short-to-medium range fixed-wing unmanned aircraft. The new coefficient is...

Nov 23, 2017 · While the drag of aircraft cruising at low reynolds numbers is relatively well understood, the dramatic increase in popularity of drones has lead to a variety of novel, multifunctional...