Laying is the act of making equipment level. It usually involves moving equipment in small motions so that
spirit levels are centralised in all
plane
Plane(s) most often refers to:
* Aero- or airplane, a powered, fixed-wing aircraft
* Plane (geometry), a flat, 2-dimensional surface
Plane or planes may also refer to:
Biology
* Plane (tree) or ''Platanus'', wetland native plant
* ''Planes' ...
s. Movement is usually done by small
worm gears or other fine setting devices for accurate small movements, together with coarser gears to allow large swings in motion for quick movement between different settings.
Equipment that requires laying before it can be used accurately includes:
*
theodolite
A theodolite () is a precision optical instrument for measuring angles between designated visible points in the horizontal and vertical planes. The traditional use has been for land surveying, but it is also used extensively for building and ...
s
* guns and howitzers in
indirect fire (
gun laying
A gun is a ranged weapon designed to use a shooting tube (gun barrel) to launch projectiles. The projectiles are typically solid, but can also be pressurized liquid (e.g. in water guns/cannons, spray guns for painting or pressure washing, p ...
)
Artillery operation
Machines
{{Industry-stub