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A headland or stretch of cliff having a broad nearly perpendicular face



Related Terms

ICE FRONT

The vertical cliff forming the seaward face of an ice shelf or other floating glacier varying in height from 2 to 50 meters above sea level. See also ICE WALL.

BUTTRESS THREAD

A screw thread whose forward face is perpendicular to the screw axis and whose back face is at an angle to the axis, so that the thread is both efficient in transmitting power and strong.

FACING

  1. A covering or casting of some material applied to the outer face of embankments, buildings, and other structures. 2. Machining the end of a flat rotating surface by applying a tool perpendicular to the axis of rotation in a spiral planar path.

TAPERED-LAND THRUST BEARING

The babbitt face of a tapered-land thrust bearing has a series of fixed pads divided by radial slots. The leading edge of each sector is tapered, allowing an oil wedge to build up and carry the thrust between the collar and pad.

LPP

The length of a vessel along the waterline from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member. Believed to give a reasonable idea of the vessel's carrying capacity, as it excludes the small, often unusable volume contained in her overhanging ends.

LENGTH BPP

The length of a vessel along the waterline from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member. Believed to give a reasonable idea of the vessel's carrying capacity, as it excludes the small, often unusable volume contained in her overhanging ends.

BROAD

In appearance from the vantage point of a lookout or other person viewing activity in the vicinity of a ship, e.g., another ship off the starboard bow with her side facing the viewer's ship could be described as 'broad on the starboard bow' of the viewer's ship.

SQUARED AWAY

Yards held rigidly perpendicular to their masts and parallel to the deck. This was rarely the best trim of the yards for efficiency but made a pretty sight for inspections and in harbor.

TACTICAL DIAMETER

The perpendicular distance between a ship's course when the helm is put hard over and her course when she has turned through 180 degrees; the ratio of the tactical diameter divided by the ship's length between perpendiculars gives a dimensionless parameter which can be used to compare the manoeuverability of ships.

LOA

The maximum length of a vessel's hull measured parallel to the waterline, usually measured on the hull alone, and including overhanging ends that extend beyond the main bow and main stern perpendicular members. For sailing vessels, this may exclude the bowsprit and other fittings added to the hull, but sometimes bowsprits are included.

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