Q16-11. Full throw of a pilot's control stick raises the
BACKUP SYSTEM
inboard flaperons how far?
Q16-12. Full throw of the pilot's control stick raises the
LEARNING OBJECTIVE: Identify
outboard flaperons how far?
components of the backup system for primary
Q16-13. All four flaperons will automatically pop up
flight controls.
approximately how many degrees when the
aircraft has weight on wheels and the throttles
Despite the dual system design requirement for
are retarded?
flight control systems, a complete hydraulic system
failure is possible. System failure could be a result of
Q16-14. What combined flight control system achieves
component or plumbing failure or as a result of
an increased roll rate about the longitudinal
enemy-inflicted damage. The backup flight control
axis?
system, shown in figure 16-17, provides for an
Q16-15. What causes the spoiler deflectors to open?
additional measure of flight control safety. The system
Q16-16. What control system provides a means of
activates whenever a partial or complete hydraulic
system failure occurs.
controlling an aircraft about its vertical axis?
1.
Rudder return port
6.
Pump
11.
Check valve
2.
Case drain (reservoir)
7.
Seal drain port
12.
Filter assembly
3.
Suction port
8.
Motor
13.
Reservoir assembly
4.
Case drain (pump)
9.
Electrical receptacle
5.
Suction and pressure ports
10.
Pressure switch
Figure 16-17.--Backup flight control hydraulic system.
16-19
