is mounted horizontally below the center of the dial, as
shown in figure 7-18.
When the pilot is executing a properly banked turn,
the ball stays in the center position. If the ball moves
from the center position, it shows the aircraft is slipping
to the inside or the outside of the turn. Centrifugal force
and gravity determine the position in which the ball
The following navigational instruments direct,
plot, and control the course or position of aircraft.
Magnetic (Standby) Compass
A direct-reading magnetic compass (fig. 7-19) is
mounted on the instrument panel. The face of the
compass is read like the dial of a gauge.
The gyro compass is used in many naval aircraft.
The system provides an accurate indication of aircraft
headings through 360E of azimuth.
Horizontal Situation Indicator
The newest naval aircraft use the horizontal
situation indicator (fig. 7-20). It shows the pilot the
navigational situation of the aircraft.
Generators that produce alternating current
(ac) for aircraft are known as what type of
Most naval aircraft use what type of system as
their primary source of power?
What is the purpose of airborne auxiliary
power units (APUs)?
The pitot-static consists of a pitot-static tube
and three indicators. What are the three
What is the function of the altimeter?
Define the Mach number of any moving body.
What information does the attitude indicator
provide to the pilot?
What information does the turn and bank
indicator provide to the pilot?
What are the three navigational instruments
that direct, plot, and control the course or
position of an aircraft?
LEARNING OBJECTIVES: Recognize the
communications and navigation equipment.
Identify the basic purposes of navigational
systems and equipment to include TACAN,
navigation computer systems.
This section presents information on airborne uses
of radio communications and navigation. Radio
equipment does not require interconnecting wires
between the sending and receiving stations. It is the
Figure 7-19.Magnetic (standby) compass.
Figure 7-20.Horizontal situation indicator.