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SLOP allows aircraft to offset the centreline of an airway or flight route by a small amount, normally to the right, so that collision with opposite direction aircraft becomes unlikely. In the North Atlantic Region pilots are expected to fly along the oceanic track center-line or 1 or 2 nautical miles to its right, randomly choosing one of ...
Escarpment – Steep slope or cliff separating two relatively level regions (scarp) Esker – Long, winding ridge of stratified sand and gravel associated with former glaciers; Estuary – Partially enclosed coastal body of brackish water; Exhumed river channel – Ridge of sandstone that remains when the softer flood plain mudstone is eroded away
In US Navy slang, also called a "flat top" or a "bird farm". air draft air draught maximum vertical extent of any part of the vessel above the water surface. Clearance required for passing under a bridge. [12] aka Structural section of a vessel that joins together the hulls of a multihulled vessel. alee 1. On the lee side of a ship. 2. To leeward.
Section through railway track and foundation showing the sub-grade. Grading in civil engineering and landscape architectural construction is the work of ensuring a level base, or one with a specified slope, [1] for a construction work such as a foundation, the base course for a road or a railway, or landscape and garden improvements, or surface drainage.
Display of roof pitches 1:12 through 18:12 A roof made of thatch, one of the oldest roofing materials, needs a steep pitch to drain properly Some types of stone roof have a very restrictive roof pitch, which can lead to leaking Working on roofs with pitches too steep for safety requires a staging of scaffolding boards secured with roof brackets A pitch gauge measuring the slope of an asphalt ...
Once this is done, the slope may be read from the scale. Because the level is typically held at the surveyor's eye-height, it is common to use the face of a second surveyor of similar height as a target. If the second surveyor is not the same height, the approximate location of eye-height must be noted (i.e. chin, nose, top of head).
When "quay" and "wharf" are used as synonyms, the term "quay" is more common in everyday speech in the United Kingdom, many Commonwealth countries, and Ireland, while "wharf" is more commonly used in the United States. 2. To land or tie up at a quay. quayside 1. An area alongside a quay. 2. Being alongside a quay, e.g.
Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not change appreciably over time (meaning there is no high tide or low tide), and around which a tidal crest circulates once per tidal period (approximately every 12 hours). Tidal amplitude increases, though not ...