MIL-HDBK-1025/5
Rub Strake. A longitudinal rib or protective strip running along the hull of
a craft to function as a bumper.
Rubble Mound. A mound of random-shaped and randomly-placed stones protected
with a cover layer of selected stones or specially shaped concrete armor
units.
Runup. The rush of water up a structure or beach on the breaking of a wave.
The magnitude of runup is the vertical height above still-water level that the
rush of water reaches.
Scend.
The sinkage of a craft in the trough of a wave.
Screw.
A propeller on any type of craft.
Sheet pile. A pile with a generally flat cross-section to be driven into the
ground or seabed and meshed or interlocked with like members to form a
diaphragm, wall, or bulkhead.
Shoreline.
The intersection of a specified plane of water with the shore or
beach.
Shoal. Become shallow gradually (v.). A detached elevation of the sea bottom
comprising any material except rock or coral, and which may endanger surface
navigation (n.).
Slip.
A space between two piers for craft berthing.
Small Craft. Shallow draft vessels such as work boats, rescue boats, harbor
and pilot launches, special service craft, and survey boats.
Squat. The vertical downward displacement of a craft under power with respect
to its position in the water when not underway.
Stringer. The relatively long, main horizontal beam that supports the deck of
a fixed pier or dock between bearing points. In a floating structure, the
continuous beam (usually, along the sides) that joins a series of floating
modules.
Surge. Wave motion with a period intermediate between that of a ordinary
wind- generated wave and wave caused by tide, say, from 30 seconds to 60
minutes. It is of low height, usually less than 0.3 feet.
Swell. Wind-generated waves that have traveled out of their generating area;
characteristically represents a more regular and long period and has flatter
crests than waves within their fetch.
Difference in height between consecutive high and low waters.
Tidal Range.
Periodic rise and fall of the water that results from gravitational
Tide.
attraction of the moon and sun, and other astronomical bodies acting upon the
floating earth.
Trailing Floating Slips. Floating (usually, multiboat) slips that align
themselves with the prevailing river current. They do not require guide
piles.
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