Navigation (NAV) switch or approach (APPR) switch
(autopilot mode controller) - Press on.
(d) When the aircraft is within 10 degrees of the selected
radial, it should begin a gradual interception of the
radial or glideslope signal.
Go-around mode - Check as follows:
Flight director (FD) switch (autopilot mode controller) -
Autopilot (AP) switch (autopilot mode controller) - ON.
With aircraft flying straight and level on autopilot,
depress go round switch on left power lever.
command bars on the flight director control-indicator
commands an 8° nose up attitude and that the GO
AROUND annunciator on the autopilot annunciator
*I. INS Flight Test. A triangle test flight shall be performed.
Satisfactory navigation shall be demonstrated by flying over three
known checkpoints, and comparing the inertial present position
readouts with the coordinates of the checkpoints. Figure 5 shows
allowable position error. The aircraft shall establish a low
altitude, compatible with aircraft safety and applicable Laws and
Codes of Flight which will allow accurate sighting of ground
landmarks. An altitude of 1000 feet is recommended whenever
INS - Align in accordance with TM 55-1510-215-10-2.