l has various meanings in the Aviation category. Discover the full forms, definitions, and usage contexts of l in Aviation.
Intercepted arc of Equator, or angle at Pole, between the prime meridian and the meridian passing through a named position
AviationA unit of measure for lumber equal to 1 inch thick by 12 inches wide by 12 inches long. Examples: 1" x 12" x 16' = 16 board feet, 2" x 12" x 16' = 32 board feet. Space in a window sash for a single pane of glass. Also, a pane of glass. A factor used in calculating luminance after a given period of time and under given conditions. It takes into account temperature and voltage variations, dirt accumulation on luminaire and lit surfaces, lamp depreciation, maintenance procedures and atmos.
AviationAn area of low barometric pressure, with its attendant system of winds. Also called a depression or cyclone. Said of gyro compass when its indications are lower than the normal
AviationHorizontal; the instrument used for checking whether things are horizontal. Levels on a drawing are heights above a recognised datum which might either be the Ordnance Datum or a local datum for the job, whose location and value has to be specified on the drawings. Horizontal, oran optical/mechanical device that allows determination of horizontal. OR The version of a software application program.
AviationWhen referring to the side of a unit, the left side is always from the perspective of operation. In other words, when sitting in the driver's seat or when pushing a mower, the left side is the operator's left side.
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