TM 1-1510-223-10
3-44 Change 3
Table 3-5. Digital Flight Control System Limits (Sheet 2 of 3)
Mode
Control or
Sensor
Parameter
Value
Radio Altimeter
Capture Point
Function of beam rate and
course error.
Maximum trip point is 200 mV.
Minimum trip point is 60 mV.
LOC or
APR or
BC (cont)
NAV On Course
Roll Angle Limit
Crosswind
Correction Limit
13° of roll
30° of course error
Gain Programming
Starts at 1200 ft radio altitude,
gain reduction = 1 to 0.4
GS Receiver,
Air Data Computer
and
Radio Altimeter
Glideslope Capture
Beam Capture
Pitch Command Limit
Glideslope Damping
Pitch Rate Limit
Gain Programming
Function of beam and beam
rate.
10°
Vertical Acceleration
f (TAS)
Starts at 1200 ft radio altitude,
gain reduction = 1 to 0.08.
GA
Control Switch on Wheel
Fixed Pitch-Up Command,
Wings Level
7° pitch up
Pitch Sync
TCS Switch on Wheel
Pitch Altitude Command
20° maximum
ALT Hold
AIR Data Computer
ALT Hold Engage Range
0 to 41,000 ft
ALT Hold Engage Error
30 ft
Pitch Limit
20°
Pitch Rate Limit
f (TAS)
VS Hold
AIR Data Computer
VERT Speed Engage Range
0 to 6,000 ft/min
VERT Speed Hold Engage
Error
100 ft/min
Pitch Limit
20°
Pitch Rate Limit
f (TAS)
IAS Hold
AIR Data Computer
IAS Engage Range
80 to 400 knots
IAS Hold Engage Error
5 knots
Pitch Limit
20°
Pitch Rate Limit
f (TAS)