Honeywell SPZ-8000 - Altitude Hold Mode

SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
8-45
Modes of Operation
ALTITUDE HOLD MODE
The altitude hold mode is a vertical flight director mode that maintains
a barometric altitude reference. The vertical command for altitude hold
is displayed with the flight director pitch command cue on the EADI.
Refer to Table 8--6 for the procedure for using the altitude hold mode.
Step
Procedure
1 Select any lateral flight director mode.
2 Push the ALT button on the flight guidance controller .
3 The ALT annunciator is displayed on the EADI while
altitude hold is active, as shown in Figure 8--36. The
vertical axis of the flight director maintains the barometric
altitude established in Step 2.
AD--58157@
Altitude Hold Mode
Figure 8--36
4 Change the reference altitude by pushing the TCS button
on the control wheel and maneuvering the aircraft to a new
altitude and then releasing the TCS button. Selecting the
altitude hold mode cancels any previously selected vertical
mode.
Altitude Hold Mode Procedure
Table 8- -6