JOINT ADVANCED MULTI-ENGINE T-44A
Top arc has light shading.
Mode Wx ALERT
Confirm test pattern center band alternates dark/bright 4 times per scan.
Mode Wx GAIN MAX
Confirm strobe line (antenna position) moves across screen a full 90º without jumping.
Confirm strobe line disappears and display freezes.
Prior to moving from TEST position, P scans for any large metal objects within 50 feet, personnel within 18 feet,
or in the vicinity of refueling operations. If personnel, vehicles, or aircraft approach, P immediately selects TEST
m. Tilt/BRTVary brightness and tilt (0-15 degrees) and confirm that ground clutter appears at
lower settings and weather (if any) appears at higher settings. Re-attempt using 5 or 10 if a
satisfactory check is not obtained on 20-mile scale.
FunctionOFF or STBY
NOTE: Full operation of this radar system is possible approximately 2 minutes after turn-on. Because of the fast
warm-up capability, if no significant weather is in the immediate area, the P should elect to leave the function
switch OFF after system warm-up and test rather than in STBY to prolong the life of the magnetron transmitting
NOTE: Radar checks cannot be practiced in the simulator.
13. FLIGHT INSTRUMENTS
"CHECKED" (P, CP)
P and CP check flight instruments for proper indications:
Airspeed Less than 40 kts.
RMI/HIS Report headings (should be within 5 ° of each other); no abnormal flags.
Turn/slip Needle erect, ball centered, no flag.
Press and hold TEST. Note indication of 10º (+3) of:
ATT and HEADING flags displayed.
(2) Release TEST and note attitude gyro returns to wings level, on the horizon, no abnormal flags,
and headings are correct.
IVSI/VSI Approximately zero.
A typical response would be: (P) "Airspeed less than 40, my RMI, your HSI 130, my HSI, your
RMI 128, turn needle erect, ball centered, 10, 10, 10, and 2, VSI zero." CP reports any