Task 4. Describe the procedures for boresighting the integrated sight unit (ISU).

The M2/m3 Bradley Fighting Vehicle: Fire Control System
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TASK 4.

Describe the procedures

for

boresighting

the

integrated

sight unit (ISU).

CONDITIONS

Within a self-study environment and given the subcourse text, without

assistance.

STANDARDS

Within one hour

REFERENCES

No supplementary references are needed for this task.

Introduction

Another element of the Bradley fighting vehicle fire control system

which must be boresighted is the integrated sight unit (ISU).

The

ISU is the primary sighting device of the vehicle. The night sight

of the ISU must be boresighted to the day sight to ensure accuracy

during aiming and firing in daylight and at night.

This task

describes the two methods of boresighting the ISU night sight to day

sight.

Boresighting the ISU Night Sight to Day Sight

There are two methods of boresighting the night sight to day sight.

The convenient target method should be used when visibility is good

for 3280 feet (approximately 1000 meters).

The buddy boresighting

method requires a second vehicle, and should be used when the

visibility is poor, but not less than 656 feet (200 meters). The ISU

night