TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
AVIONICS FLIGHT CHECKS (CONT)
*3.
Inertial Navigation System Flight Test - Perform
as follows:
Demonstrate satisfactory performance by flying over three known
checkpoints, and comparing the inertial present position readouts with
the coordinates of the checkpoints. Establish a low altitude, compatible
with aircraft safety and applicable laws and codes of flight, which will
allow accurate sighting of ground landmarks. Fly the aircraft at an
altitude of 1000 feet over waypoints and 10,000 feet or more when
between waypoints whenever possible. Use TACAN updating for the
first half of the flight and GPS updating for the second half. Check the
displays in flight by performing the following procedures.
(a)
Inertial navigation system - Set up, align,
and operate in accordance with TM 1-1510-
224-10.
(b)
B mode selection switch - Depress to select
FPLN mode.
(c)
R5 line selection switch - Depress to select
NAV SETUP page.
(d)
R3 line selection switch - Depress to select
TACAN LIST page.
(e)
Station list numbers to be used in AUTO
MIXING mode - Enter into scratchpad using
keyboard unit (KU).
(f)
R4 line selection switch - Depress to select
scratchpadded stations for AUTO MIXING
mode.
(g)
R5 line selection switch - Depress to select
NAV SETUP page.
4-10
