All ships carry various types of survival
equipment in addition to boats and life rafts. One
of these items of survival gear is the life preserver.
The Navy uses two types of life preserversthe
inherently buoyant type and the inflatable type.
Most ships carry both types. They are stowed in
various locations around the ship so that all
personnel have access to them.
Another item along the same line is the life
ring. It is inherently buoyant and has a strobe
light attached to it. Often located near the life ring
is a smoke float. In the event of a man overboard,
both the life ring and the smoke float should be
thrown near the person.
The bridge is the primary control station
aboard ship. Located on the bridge are the items
used to control the movement of the ship. Other
items used to ensure the safe navigation of the
ship, such as the compass, radar repeaters, and
status boards, are also located on the bridge.
The helm on a ship (fig. 18-4) is the equivalent
of the steering wheel on a car. The helmsman
turns the helm to keep the ship on a desired
course or to turn the ship. When the helm is
turned, the mechanical input of turning the helm
Figure 18-4.-A typical helm console.