Page 262 - NAVAL SCIENCE 3 TEXTBOOK

268 GLOSSARY OF NAVAL SKILLS TERMS

rotary winged aircraft-aircraft that have two or more rotor blades train (of a gun)-horizontal rotation of a gun or gun mount.
that serve to lift the aircraft into the air.
trajectory-the path of a projectile, missile, or bomb in tlight.
rules of the road-the nautical rules bY'which ships maneuver to
true bearing-a bearing using true north as the reference,
avoid collisions ,vhile under way; traffic rules for vehicles on land,
true wind--direction and speed at which a wind is blowing relative
running rigging-adjustable rigging for handling sails, masts,
to Earth's surface.
booms, and the like.
unmanned aerial vehicle (UAV)-a remotely controlled unmanned
scope of chain-the length of an anchor chain, usually divided
aircraft.
into IS-fathom segments called shots.
variable time fuse-a nlse that is actuated by the rellection of selIC
seamanship-skill in handling a boat or ship, or in doing those
generated radar emissions from the target as a projectile passes
things related to the job of a seaman.
near it.
shoring-process of placing props, usually wooden, against struc-
vertical launch system (VlS)-missile launch tubes mounted verti-
tures or cargo in a ship to prevent breaking, sagging, or movement
call)' within a ship's hull.
in a seaway, or to hold a ship upright in dry dock.
warhead-forward section of a torpedo or missile that carries the
short stay-position of an anchor cable straight up and down, or
explosive charge; the nose cone.
nearl), so, with the anchor barely holding the bottom.
waterline-the line on a vessel's huH to which it sinks in the water,
shot (of anchor chain)-a IS-fathom section of anchor chain,
watertight integrity-the ability of a compartment on a vessel to
joined to the next shot by a detachable link.
withstand flooding.
Shrapnel-shell fragments from a high-explosive shell.
water washdown system-a system of external piping on a ship,
smart bomb-a non-self-propelled air-dropped precision muni-
often temporary, that allows topside external surfaces to be con-
tion that can be guided to impact with a target.
tinually wetted with spray to minimize adhesion of chernical and
solar time-time based on the relationship of the Sun to Earth. biological agents and nuclear fallout.
soundings-<!epth of water. weapons of mass destruction (WMO)-CBR weapons that can
inf1ict mJssiyc destruction over a large area, or mass casualties
special weapons-unconventional CBR 'weapons of any type,
among a population.
especially nuclear weapons.
zone time-time reckoned according to the relationship of the
stadimeter-an optical device used to determine the distance to an
mean Sun with the centralmcridian of each IS-degree-wide time
object of known height.
zone.
standard time-a IS-degree-wide sector or zone of the Earth in
which the same time is kept by all in it; uses as a basis the relation-
ship of the mean Sun with the centralll1eridian of the zone.
standing rigging-heavy metal or 'wire supports for spars, masts, or
booms permanently installed.
stand-on vessel-a vessel obliged to maintain course and speed
during an approach situation with another vessel while under
way; See also give-way vessel.
starboard-seagoing term for right.
star shell-a projectile that detonates in the air and releases an
illuminating parachute flare,

stateroom-an officer's berthing quarters on board ship.
stokes stretcher-a contoured stretcher designed to aid in trans-
porting injured victims up and down stairs and ladders.
sweep-a mine-dearing operation on land or sea; a series of mil-
itary strikes through an area to rid it of enemy torces.
topographic map-a map of terrain showing water, elevations, and
landmarks.