about synchros, servos, and gyros, you should
provides pitch and bank attitude references for
refer to Navy Electricity and Electronics Training
the AFCS. It can also provide pitch and bank
attitude references for servo indicators and other
Series (NEETS), module 15, Principles of
systems of the aircraft. It has enough signal load
Synchros, Servos, and Gyros.
capacity to sustain several systems at the same
GYROS. --There are several different gyros
time.
used with the AFCS. You have already learned
The vertical gyro is a two-degree-of-freedom
about most of them earlier in the TRAMAN. The
gyro. This gyro is termed the vertical gyro because
following paragraphs provide a review of gyros
it is continuously erect with its spin axis vertical
and how they specifically affect the AFCS.
to the surface of the earth. The spin axis provides
Vertical Gyro. --The vertical gyroscope
a vertical reference for measurement of aircraft
(fig. 8-17) is an electrically driven gyro that
bank angle and pitch angle. Pitch and roll gimbals
Figure 8-17.-Vertical gyro components.
8-15
