Draggning

Draggning is a term used to denote the act of pulling or drawing a load along a surface or through a medium. In everyday language it covers actions from moving furniture by hand to towing a vehicle. In technical contexts it describes processes where a force is applied to overcome resistance such as friction, gravity, or fluid drag.

In physics and engineering, the resistive force opposing motion through a fluid is known as drag. Draggning in this sense refers to the practical engagement with drag forces as a design or operational challenge. Drag is commonly modeled by F_d = 1/2 ρ v^2 C_d A, where ρ is fluid density, v velocity, C_d drag coefficient, and A cross-sectional area.

Applications include forestry, where draggning refers to moving logs from harvest sites to a landing using lines, chokers, winches, or ground-based machines; in construction or mining for moving heavy loads along predefined paths; and in transportation for towing or recovering vehicles.

Equipment and methods vary with terrain and load, but common elements include rope or steel cable chokers, winches, skidders, and anchors. Proper technique aims to minimize ground damage, reduce injury risk, and control load sway. Environmental and soil impacts such as compaction and rutting are considered in planning.

History and terminology: The word derives from the general verb drag, and its specialized uses have developed with mechanization, notably in forestry and road recovery.

See also: drag, towing, skidding, logging, winch.