b. Secure UTD mounting bracket with screws long enough to pass through the mating fastener and extend a
minimum of two threads.
It may be necessary to replace the four aircraft screws
with longer screws in order to mount the UTD mounting
If the UTD captive mounting bolts are lost or damaged,
use NAS1305-14 bolts of suitable length as temporary
c. Mount UTD (29310700) on bracket, ensuring that the night (red) lens on UTD is below the optical (clear) lens.
d. Connect the UTD cable (29325701) to UTD connector and connect to the DAU receptacle marked TRACKER 1.
e. Ensure that the TRACKER MODE switch on the front of the DAU is in the DAY position.
PROCEDURE 5: NIGHT TIME TRACKING INSTRUCTIONS
The following steps are to be taken if nighttime tracking
is anticipated. If no flights will be performed after dusk,
proceed directly to task 2.
a. Ensure that the TRACKER MODE switch on the front of the DAU is in the NIGHT position.
b. Ensure that the underside, trailing edge of all blades is as clean as possible. This is necessary for optimum
adhesion of the reflective tape.
c. Place a single, 4-ft strip of reflective tape on the underside, trailing edge of each blade as shown in figure 7.
Ensure that the tape is smooth and as straight as possible using the edge of the blade as a reference.
d. If verification of the tape placement is desired, it can be viewed by holding a flashlight near your head and
shining it at the rotating blades. Any misplaced sections of the tape will stand out.
Figure 7. Placement of Reflective Tape on Rotor Blades