Reason

• This lesson provides an overview of the Precision Gunnery System (PGS) for the BFV by discussing the following:

• System Description

• Safety Regulations

• Provide outline of training course

Training Objective

• In a classroom environment, given TM 9-6920-710-12&P-1 or student handout, you will learn the following:

• Safety regulations

• System description

• Outline of the PGS training course

Purpose of Course

• Train M2/M3 BFV crews to use PGS

• Provide instructors with the knowledge to conduct PGS training

• Train support personnel on PGS

PGS Development

• PGS was developed to train the following without using limited resources and live ammunition:

• Precision gunnery

• Degraded gunnery

• Battle sight gunnery

• Force-on-force exercises

What is PGS?

• Strap-on laser-based training device that allows full crew interaction when conducting gunnery training.

• Allows crew to train with all components of BFV’s fire control system.

PGS Features

• Full fire control interface.• Realistic simulation of ballistics and time of flight for service

AP, HE, and COAX ammunitions.• Simulates TOW Basic, TOW2, and TOW2B.• Visual effects are displayed over the ISU, ISUCE or backup

sight eyepieces.• Simulation of 25 mm and Coax weapon effects.• Simulated ammo transfer from the hull to turret.• Transparent to crew. • Intercom sound effects of firing of TOW, 25 mm gun, COAX,

and of target effects.

PGS Capabilities

• Engage stationary or moving targets from a stationary or moving vehicle.

• Panel gunnery and force-on-force capability. • TOW only training (live fire 25mm and COAX).• Tracking training.• Scaled gunnery training (1/2 and 1/10).• Tamper resistant.• Full AAR capability.• Programmable ammunition loads.

PGS Compatibility

• Tank Weapon Gunnery Simulation System (TWGSS).• Precision Gunnery System (PGS) for LAV. • Cooperative MILES - equipped systems with retro

reflector units installed.• Non-cooperative MILES - equipped systems without

retro reflector units installed.• Panel targets equipped with retro reflector units

and/or LTIDs (Laser Target Interface Device).• Interoperable with Thru-sight Video.

PGS Subsystems

• PGS consists of:

– Firing System (FS)

– Target System (TS)

– Training Data Retrieval System (TDRS)

TRANCEIVER UNIT(ROTOR MOUNT)

TRANCEIVER UNIT(TOW ONLY

MOUNT) VEHICLE INTERFACEASSEMBLY

REMOTE SYSTEMINTERFACE

REMOTE SYSTEM INTERFACEANTENNA

TBOS EYEPIECE(COMMANDER)

TBOS EYEPIECE(GUNNER)

TBOS EYEPIECE (BACKUP SIGHT)

Firing System

RETRO DETECTOR UNITS(2 FRONT)

HULL DEFILADE DETECTOR UNITS(2 FRONT - 2 REAR)

TARGET COMPUTER UNITRETRO DETECTOR UNITS (2 REAR)

Target System

Training Data Retrieval System

AAR Setup

AAR List

AAR Map

Ammo Assignment Ammo Selection Sighting and firing

Projectile Simulation Hit Point Calculation

Information Transmission

Evaluation Retro Reflectors MILES Code Transmission End of Simulation/ TDRS Data Stored

1 2

4 5

3

6

987

Firing System Simulation

*

1 Laser Information Received 2 Determine Impact Point

3 Hit Vulnerability

4 Evaluation of Kill

5 Engagement Results

Target System Simulation

General Safety Regulations

• Mount and dismount over left front or through back ramp.• Maintain three (3) points of contact on top of vehicle.• Follow unit smoking SOP.• Do not go over or under gun barrel.• During installation and removal:

– TURRET TRAVERSE DRIVE SELECT LEVER to MANUAL

– TURRET TRAVEL LOCK to LOCKED

– MASTER POWER switch OFF

– TURRET POWER switch OFF

• Use proper hearing protections at all times.• Cables must be connected by properly trained personnel.• If ATWESS is used, observe all safety regulations.

Laser Safety

• PGS uses a conditionally eye safe laser (Class 3A)

WARNING

Transceiver unit has an eye-safety classification of 3A. During operation, DO NOT view transceiver unit with an unaided eye for an extended period of time. DO NOT AT ANY TIME view transceiver unit with an aided eye, (i.e., optics which magnify) from a distance less than 25 meters.

Course Lessons

• Introduction to PGS• Preparation of BFV• Preparation for Operation (PMCS)• Installation of PGS• Startup and Alignment• Operation of PGS• Post Operational Procedures• Troubleshooting

Course Lessons

• Preparation of Targets

• Operation of Control Gun (CGUN)

• Training Data Retrieval System (TDRS) Computer Unit

• Setup

• After Action Review (AAR) List

• After Action Review (AAR) Map

• PGS/Thru-Sight Video (TSV) Integration

Summary

• Purpose and outline of course

• PGS purpose and benefit

• General safety regulations

Closing Statement

• This block of instruction has prepared you to understand the concepts of PGS and the safety procedures pertaining to its operation.

Reason

• To use PGS to its full potential, the vehicle must be properly prepared for PGS training.

Training Objective

• Given an operational BFV with BII and a 25mm boresight kit, you will demonstrate the following tasks to prepare the vehicle for PGS training:

• Conduct prep-to-fire checks • Boresight vehicle • Prepare the BFV for PGS installation

Prepare Vehicle for PGS Training

• Conduct prep-to-fire checks and services

• Boresight turret weapons

• Prepare vehicle specific equipment

Preparation of Vehicle-SpecificEquipment for Installation

• TURRET TRAVERSE DRIVE SELECT LEVER to MANUAL

• TURRET TRAVEL LOCK to LOCKED• TURRET POWER switch OFF • MASTER POWER switch OFF• Inspect and clean DTP connectors• Remove rear periscope at commander’s position• Remove commander’s and gunner’s browpads• Adjust vehicle load plan

Summary

• Conduct prep-to-fire checks and services

• Boresight turret weapons

• Prepare vehicle specific equipment

Closing Statement

• To get the desired training result from PGS, you must first properly prepare the BFV for PGS installation.

Reason

• Training hours are lost when unit personnel draw training equipment that is incomplete or unserviceable. Many of these hours could be saved if unit personnel know what to look for and how to check the equipment.

Training Objective

• Given a PGS set packed in its storage cases and TM 9-6920-710-12&P-1, you will:

– Demonstrate proper handling of PGS components

– Identify PGS components– Conduct before operation PMCS of PGS

components

Proper Handling Of PGS1. Always use 2 personnel to carry cases

2. Ensure cases are closed during transportation

3. Use care and always transport components in proper container

4. Do not stack storage cases more than 4 high

Summary

• Safety concerns and requirements

• Inspection of PGS:– Initial inspection– Exterior components– Interior components– Cables– Backup Sight TBOS kit (optional)

Closing Statement

• This block of instruction has taught you how to inspect, handle, and identify deficiencies with PGS components before installation

Reason

• To use PGS to its full potential, you must be able to correctly and safely install PGS on vehicle.

Training Objective

• Given an operational BFV with BII, prep-to-fire checks, boresighting, vehicle preparation, and a PGS with PMCS completed, you will perform the following:

– Properly install PGS IAW TM 9-6920-710-12&P-1, Chapter 2.

Summary

• Installation of exterior components

• Installation of interior components

• Installation of interior cables

• Installation of exterior cables

• Verification of installation

Closing Statement

• This block of instruction has taught you how to properly and safely install PGS on the BFV

Reason

• BFV crews must be able to correctly start, align, and verify alignment of PGS to the BFV’s turret weapons.

Training Objective

• Given an operational BFV with PGS installed, prep-to-fire checks and boresighting completed, the crew will demonstrate the following:

– Conduct system start-up – Conduct system alignment – Perform alignment verification

Pushbuttons

LCD Display Screen

CF

SI RM GD

AT PGS

AG M3 TOW2 v3.0

SU PANEL GUNNERY

TE

SIMULATION

Ejection Button

ENTERESC

Memory CardSlot

Control Panel

NOTE: Insert and remove TDRS Memory Card with system power set to OFF.

Control Panel Functions

• Monitor ammunition and ammunition upload

• Presents results: numerical or graphical

• System alignment

• BIT and error presentation

• Controller functions

• Data storage on TDRS memory card

AT PGS

AG M3 TOW2 v 3.0

SU PANEL GUNNERY

TE

SIMULATION

SI RM GD

Selection Title

Text AreaMainFunctionGroup

SubfunctionGroup

CF

Control Panel Menu

ENTER

Access to menusSaves or accepts data

ESCAborts menu

Inhibits function or selection

Moves cursor down or leftDecreases values for data

Moves cursor up or rightIncreases values for data

Pushbutton Functions

“System Error,Check The Control Panel”

Vehicle Intercom

AG NO CONNECTION

SU MEMORY CARD

SIMULATION

SI RM GD

Control Panel Hit Indicators

• To start up PGS, turn on vehicle MASTER POWER SWITCH

• BIT performed at power up and during system operation

AG

AT

CF

TE

SU

SI

Start Up And Bit Indications

Alignment

• Alignment is the process where PGS is aligned to the BFV’s turret weapons.

• Alignments:

• Cant alignment• TOW laser alignment• GUN laser alignment• TBOS gunner alignment• TBOS commander alignment

Vehicle Setting for Alignment

• A boresighted and operational BFV with PGS installed

• Range knob set to 0m• Aiming point of 25mm/coax reticle for the

ISU/ISUCE• Aiming point of TOW reticle• Boresight cross of 25mm/coax reticle of the

backup sight

• Adjustment of the transceiver unit to match the actual trunnion cant of the vehicle.

Cant Alignment

Laser Alignment

• Alignment of the transceiver unit to the TOW, 25 mm, and coax weapon system to vehicle’s fire control system.

• Alignment of the TBOS systems to BFV’s ISU and to the ISUCE or the backup

sight.

Gunner TBOS Commander/ Backup Sight TBOS

AG

SU

TE

TBOS COMMANDER ALIGNMENT

AT

CF

SI LA TG TC TV

AG

SU

TE

TBOS GUNNER ALIGNMENT

AT

CF

SI LA TG TC TV

TBOS Alignment

12

3020

100.5

.

HE

ISU/ISUCE

48

12

16

20

HE AP

614

24

34

Backup Sight

Gun Alignment Point Alignment Point

TOW Alignment Point

TBOS Alignment

Rotation AlignmentTee

TBOS AlignmentDot

TBOS Alignment Pattern

Summary

• Startup procedures

• System alignment

• Alignment verification

Closing Statement

• To achieve the desired training result with PGS, you must be able to correctly conduct startup, system alignment, and alignment verification of PGS to the BFV turret weapons system.