ST 3-22.7 US Army Infantry School Special Text Fort Benning, GA18 February 2009 No. 3-22.7 Stryker Mortar Platoon and Section Leaders’ Handbook Contents Page PREFACE ..................................................................................................................... i Chapter 1 M1129A1 STRYKER MORTAR CARRIER VEHICLE ............................................. 1-1 Section I — OVERVIEW ........................................................................................... 1-1 Organization .............................................................................................................. 1-1 Section II — MCV CHARACTERISTICS AND CAPABILITIES ............................. 1-1 Stryker Variant ........................................................................................................... 1-1 Crew Configuration .................................................................................................... 1-2 Weapons Systems ..................................................................................................... 1-3 MCV Configurations .................................................................................................. 1-5 Secondary Weapon ................................................................................................... 1-6 RMS6-L 120-mm Mortar System ............................................................................... 1-6 M95 Mortar Fire Control System ............................................................................... 1-7 Mortar Ammunition Stowage ..................................................................................... 1-8 SECTION III — UNIT MORTAR TRAINING ............................................................. 1-9 Training Priority ......................................................................................................... 1-9 Mortar Training at Training Base ............................................................................... 1-9 Unit Training ............................................................................................................ 1-11 Training Evaluation .................................................................................................. 1-14 Chapter 2 OPERATIONAL PROCEDURES .............................................................................. 2-1 Section I — MORTAR AMMUNITION...................................................................... 2-1 Mortar Storage Space, 60-mm/81-mm ...................................................................... 2-1 Ammunition Storage Space ....................................................................................... 2-1 120-mm Ammunition ................................................................................................. 2-2 81-mm Ammunition ................................................................................................... 2-9 60-mm Ammunition ................................................................................................. 2-12 Section II — BORESIGHT AND SIGHT CALIBRATION OF 120-MM MORTAR . 2-16 Manual Boresight ..................................................................................................... 2-16 Digital Boresight ...................................................................................................... 2-21 Distribution Restriction: Approved for public release; distribution is unlimited. 18 February 2009 ST 3-22.7 i Table of Contents Section III — NAVIGATION AND EMPLACING THE PLATOON OR SECTION. 2-24 Emplacing the Platoon/Section Using Waypoint Method ....................................... 2-24 Emplacing the Section Using Fire Area Method ..................................................... 2-26 Chapter 3 FIRE MISSIONS USING THE MORTAR FIRE CONTROL SYSTEM...................... 3-1 Section I — STANDARD FIRE MISSIONS ............................................................. 3-1 Standard Fire Mission Features ................................................................................ 3-1 Example Mission Data Screen .................................................................................. 3-2 Common Actions ....................................................................................................... 3-4 Section II — BASIC FIRE MISSIONS ..................................................................... 3-5 Basic Digital Missions ............................................................................................... 3-5 Manual Missions ..................................................................................................... 3-16 Section III — SPECIAL MISSIONS ...................................................................... 3-20 Registration Point .................................................................................................... 3-20 Target/Known Point ................................................................................................ 3-22 Illumination Mission ................................................................................................. 3-24 Coordinated Illumination Mission ............................................................................ 3-31 Final Protective Fires .............................................................................................. 3-33 Smoke Missions ...................................................................................................... 3-43 Chapter 4 STRYKER MCV CREW AND BATTLE DRILLS ..................................................... 4-1 Section I — TRAINING ............................................................................................ 4-1 Drill Training .............................................................................................................. 4-1 Training Guidance ..................................................................................................... 4-2 Force Protection (Safety) .......................................................................................... 4-3 Section II — MCV CREW DRILLS .......................................................................... 4-4 Crew and Squad Drills .............................................................................................. 4-4 React to a Rollover While Mounted on a MCV ......................................................... 4-5 Evacuate a Stryker Mortar Carrier Vehicle ............................................................... 4-6 Extinguish a Fire on a MCV ...................................................................................... 4-7 Place a 120-mm Stryker Mortar into Action ............................................................ 4-10 Perform Small Deflection and Elevation Changes on a Stryker Mounted 120-mm Mortar System .................................................................................................. 4-12 Perform Large Deflection and Elevation Changes on a Stryker Mounted 120-mm Mortar System .................................................................................................. 4-13 Reciprocal Lay a Stryker Mounted 120-mm Mortar ................................................ 4-14 Conduct Misfire Procedures on a Stryker 120-mm Mortar System ........................ 4-15 Section III — MCV BATTLE DRILLS .................................................................... 4-19 React to a Biological or Chemical Attack ................................................................ 4-20 React to a Nuclear Attack ....................................................................................... 4-22 React to an Ambush (Mounted) .............................................................................. 4-24 React to Direct Fire (Mounted) ............................................................................... 4-25 React to Indirect Fire (Mounted) ............................................................................. 4-25 Chapter 5 GUNNER’S EXAMINATION ..................................................................................... 5-1 Section I — PREPARATION ................................................................................... 5-1 Methods of Instruction ............................................................................................... 5-1 Prior Training ............................................................................................................. 5-1 ii ST 3-22.7 18 February 2009 Table of Contents Preparation Exercises ............................................................................................... 5-1 Examining Board ....................................................................................................... 5-1 Location and Date ..................................................................................................... 5-3 Eligible Personnel ...................................................................................................... 5-3 Qualification Scores................................................................................................... 5-3 General Rules ............................................................................................................ 5-3 Section II — GUNNER’S EXAMINATION RMS-6L ................................................. 5-4 Subjects and Credits ................................................................................................. 5-4 Equipment ................................................................................................................. 5-4 Procedure .................................................................................................................. 5-4 Place a 120-mm Stryker Mortar into Action .............................................................. 5-4 Scoring ...................................................................................................................... 5-5 Perform Small Deflection and Elevation Changes on a Stryker 120-mm Mortar System (Manual) ................................................................................................. 5-6 Perform Large Deflection and Elevation Changes on a Stryker 120-mm Mortar System (Digital) ................................................................................................... 5-7 Chapter 6 EXAMPLE STRYKER MCV LOAD PLAN ................................................................ 6-1 General ...................................................................................................................... 6-1 Standard Loading Plan .............................................................................................. 6-1 Inspection of Equipment ............................................................................................ 6-1 Stryker Loading ......................................................................................................... 6-1 Loading ...................................................................................................................... 6-1 MCV Basic Issue Items ............................................................................................. 6-2 Recommended Stowage Locations .......................................................................... 6-6 Appendix A STRYKER MCV TRANSPORT OPERATIONS ....................................................... A-1 Section I — UNIT TRANSPORTATION .................................................................. A-1 References ................................................................................................................A-1 Responsibilities ..........................................................................................................A-1 Movement Operations SOP ......................................................................................A-2 Section II — AIR TRANSPORTATION ................................................................... A-5 Prepare the MCV for Air Transport ............................................................................A-6 Prepare the MCV After Air Transport ........................................................................A-7 Section III — TRANSPORT BY LAND ................................................................... A-7 Rail Movement ...........................................................................................................A-8 Prepare the MCV for Truck Transport .......................................................................A-9 Prepare the MCV After truck Transport .................................................................. A-10 Section IV — SEA TRANSPORTATION ............................................................. A-11 Prepare the MCV for Sea Transport....................................................................... A-11 Prepare the MCV After Sea Transport ................................................................... A-11 Appendix B STRYKER PROTECTIVE ARMOR .......................................................................... B-1 Background ...............................................................................................................B-1 Slat Armor ..................................................................................................................B-1 Vehicle Preparation ...................................................................................................B-2 Slat Armor Installation ...............................................................................................B-2 Slat Armor PMCS ......................................................................................................B-3 Safety Precautions ....................................................................................................B-3 18 February 2009 ST 3-22.7 iii Table of Contents Unexploded Ordnance (UXO) Procedures ............................................................... B-4 Appendix C RANGE SAFETY PROECEDURES AND RISK MANAGEMENT ........................... C-1 Section I — SAFETY OFFICER DUTIES ................................................................ C-1 Mortar Range Safety Checklist ................................................................................. C-1 Safety Diagram and Safety “T” ................................................................................. C-4 Surface Danger Zones .............................................................................................. C-8 Ammunition Care and Handling ................................................................................ C-9 Ammunition Color Codes ........................................................................................ C-10 Field Storage of Ammunition ................................................................................... C-11 Section II — RISK MANAGEMENT ...................................................................... C-13 Risk Management ................................................................................................... C-13 Required Publications ................................................................................................... 1 GLOSSARY ................................................................................................. Glossary-1 REFERENCES ......................................................................................... References-1 INDEX ................................................................................................................ Index-1 Figures Figure 1-1. The Stryker mortar carrier vehicle. ................................................................................... 1-2 Figure 1-2. Crew configuration. ........................................................................................................... 1-2 Figure 1-3. Mortar doors. .................................................................................................................... 1-4 Figure 1-4. Horizontal ammunition rack. ............................................................................................. 1-5 Figure 1-5. Right side ammunition rack. ............................................................................................. 1-8 Figure 1-6. Integrated mortar platoon training strategy. ................................................................... 1-12 Figure 2-1. Left side 120-mm ammunition horizontal rack (stowage). ............................................... 2-3 Figure 2-2. Left side 120-mm ammunition horizontal rack (removal). ................................................ 2-4 Figure 2-3. Left side 120-mm ammunition vertical rack (stowage). .................................................... 2-5 Figure 2-4. Left side 120-mm ammunition vertical rack (removal). .................................................... 2-6 Figure 2-5. Right side 120-mm ammunition vertical rack (stowage). ................................................. 2-7 Figure 2-6. Right side 120-mm ammunition vertical rack (removal). .................................................. 2-8 Figure 2-7. Right side 81-mm ammunition vertical/horizontal rack (stowage).................................... 2-9 Figure 2-8. Right side 81-mm ammunition vertical/horizontal rack (removal). ................................. 2-11 Figure 2-9. Right side 60-mm ammunition vertical/horizontal rack (stowage).................................. 2-13 Figure 2-10. Right side 60-mm ammunition vertical/horizontal rack (stowage). .............................. 2-14 Figure 2-11. Right side 60-mm ammunition vertical/horizontal rack (removal). ............................... 2-15 Figure 2-12. Example distant aiming point for boresight. ................................................................. 2-16 Figure 2-13. M67 Sight unit. .............................................................................................................. 2-17 Figure 2-14. Cant correction (cross-level knob). .............................................................................. 2-17 Figure 2-15. Blast attenuator device. ................................................................................................ 2-18 Figure 2-16. M45 Boresight on cannon. ........................................................................................... 2-18 Figure 2-17. M45 Boresight elevation bubble. .................................................................................. 2-19 Figure 2-18. Turntable azimuth lock. ................................................................................................ 2-20 Figure 2-19. Gunner’s quadrant sight. .............................................................................................. 2-22 iv ST 3-22.7 18 February 2009 Table of Contents Figure 2-20. Navigation screen. ........................................................................................................ 2-25 Figure 2-21. Start navigation. ............................................................................................................ 2-25 Figure 2-22. Navigation instructions on driver’s display. ................................................................... 2-26 Figure 2-23. Navigation to fire area. .................................................................................................. 2-27 Figure 2-24. Driver’s display during navigation. ................................................................................ 2-28 Figure 3-1. Mortar Fire Control System (MFCS) example mission data screen. ................................ 3-3 Figure 3-2. MFCS new call for fire screen. .......................................................................................... 3-6 Figure 3-3. MFCS mission data view screen. ..................................................................................... 3-7 Figure 3-4. MFCS solution view screen. ............................................................................................. 3-8 Figure 3-5. MFCS safety data screen. ................................................................................................ 3-9 Figure 3-6. MFCS plot view screen. .................................................................................................. 3-10 Figure 3-7. MFCS solution view screen. ........................................................................................... 3-11 Figure 3-8. MFCS mission status screen. ......................................................................................... 3-12 Figure 3-9. MFCS messages screen. ................................................................................................ 3-13 Figure 3-10. MFCS mission data view screen. ................................................................................. 3-14 Figure 3-11. MFCS end of mission message screen view. ............................................................... 3-15 Figure 3-12. MFCS save data screen. .............................................................................................. 3-16 Figure 3-13. MFCS manual call for fire screen. ................................................................................ 3-18 Figure 3-14. MCFS manual adjust fire screen. ................................................................................. 3-19 Figure 3-15. MFCS manual end of mission screen. .......................................................................... 3-20 Figure 3-16. MFCS save registration screen. ................................................................................... 3-21 Figure 3-17. MFCS registration screen. ............................................................................................ 3-22 Figure 3-18. MCFS targets screen. ................................................................................................... 3-23 Figure 3-19. MFCS known points screen. ......................................................................................... 3-24 Figure 3-20. MFCS new call for fire screen. ...................................................................................... 3-25 Figure 3-21. MFCS mission data view screen. ................................................................................. 3-26 Figure 3-22. MFCS solution view screen. ......................................................................................... 3-27 Figure 3-23. MFCS safety data view screen. .................................................................................... 3-28 Figure 3-24. MFCS solution view screen. ......................................................................................... 3-29 Figure 3-25. MFCS mission status screen. ....................................................................................... 3-30 Figure 3-26. MCFS message view screen. ....................................................................................... 3-31 Figure 3-27. MCFS new call for fire view screen. ............................................................................. 3-34 Figure 3-28. MFCS final protective fire data view screen. ................................................................ 3-35 Figure 3-29. MCFS final protective fire solution view screen. ........................................................... 3-36 Figure 3-30. MFCS safety data view screen. .................................................................................... 3-37 Figure 3-31. MFCS solution view screen. ......................................................................................... 3-38 Figure 3-32. MCFS mission status view screen. ............................................................................... 3-39 Figure 3-33. MFCS mission data status view screen. ....................................................................... 3-40 Figure 3-34. MFCS solution end of mission view screen. ................................................................ 3-41 Figure 3-35. MFCS mission status view screen. ............................................................................... 3-42 Figure 3-36. MFCS mission status view screen. ............................................................................... 3-43 18 February 2009 ST 3-22.7 v Table of Contents Figure 5-1. Example of completed RTMS6-L 120-mm MCV gunner’s exam. .................................... 5-2 Figure 6-1. Exterior MCV stowage – front and rear. ........................................................................... 6-6 Figure 6-2. Exterior MCV stowage–top. .............................................................................................. 6-7 Figure 6-3. Exterior MCV stowage – right side. .................................................................................. 6-8 Figure 6-4. Exterior MCV stowage – left side. .................................................................................... 6-9 Figure 6-5. Interior MCV stowage – driver's compartment ................................................................. 6-9 Figure 6-6. Interior MCV stowage – commander's station................................................................ 6-10 Figure 6-7. Interior MCV stowage – troop compartment (right side). ............................................... 6-10 Figure 6-8. Interior MCV stowage – troop compartment (behind vehicle commander's seat) ......... 6-11 Figure 6-9. Interior MCV stowage – troop compartment (left side)................................................... 6-12 Figure 6-10. Interior MCV stowage – troop compartment (gun turntable). ....................................... 6-13 Figure 6-11. Interior MCV stowage – troop compartment (gun turntable). ....................................... 6-13 Figure A-1. Stryker vehicle C-130, C-17, C-5 aircraft lift comparison. ............................................... A-6 Figure A-2. Stryker on railcar (front view). .......................................................................................... A-8 Figure A-3. Stryker on railcar (rear-view). ........................................................................................... A-8 Figure A-4. Stryker secured on heavy equipment transporter (HET) front view. .............................. A-10 Figure A-5. Stryker secured on heavy equipment transporter (HET) rear view. .............................. A-10 Figure B-1. Stryker MCV with slat armor. ........................................................................................... B-2 Figure C-1. Safety diagram for M8221 HE and M835A1 ILLUM. ....................................................... C-7 Figure C-2. Safety "T" for M821 HE. ................................................................................................... C-7 Figure C-3. Safety "T" for M852A1 ILLUM. ......................................................................................... C-7 Figure C-4. Stacked ammunition. ..................................................................................................... C-12 Figure C-5. Example risk management worksheet for squad/platoon. ............................................. C-19 Tables Table 1-1. Institution mortar training skill level focus. ....................................................................... 1-10 Table 3-1. MFCS steps, sequence of screens, and operator actions. ............................................... 3-2 Table 3-2. Example mission data screen. ........................................................................................... 3-4 Table 5-1. Gunner’s examination maximum credit scores. ................................................................ 5-4 Table 6-1. Stryker load area responsibilities. ...................................................................................... 6-2 Table 6-2. Stryker MCV basic issue items. ......................................................................................... 6-2 Table 6-3. BII for 120-mm, 81-mm, and 60-mm mortars. ................................................................... 6-5 Table A-1. Unit movement operations SOP ........................................................................................ A-2 Table C-1. Example completed safety record or card. ....................................................................... C-4 Table C-2. DOF calculation. ................................................................................................................ C-5 Table C-3. DOF or mounting azimuth round off calculation. .............................................................. C-5 Table C-4. Left limit deflection calculation. ......................................................................................... C-5 Table C-5. Mils from the mounting azimuth to the right limit calculation. ........................................... C-6 Table C-6. Right limit deflection calculation. ....................................................................................... C-6 Table C-7. Minimum and maximum charges and elevations calculation. .......................................... C-6 Table C-8. Maximum and minimum charges, elevations, and time setting calculations. ................... C-6 Table C-9. Mortar ammunition color codes. ...................................................................................... C-11 vi ST 3-22.7 18 February 2009 Table of Contents Table C-10. DA Form 7566 worksheet instructions. ........................................................................ C-15 Table C-11. Risk assessment matrix. ............................................................................................... C-17 Table C-12. Risk examples. ............................................................................................................. C-18 18 February 2009 ST 3-22.7 vii Preface The purpose of this handbook is to provide M1129A1 Stryker mortar carrier vehicle (MCV) mortarmen with operational knowledge of the tactics, techniques, and procedures associated with the MCV. Special emphasis is placed on operational features of the Mortar Fire Control System (MFCS). Though the MCV has multimortar capability, the primary focus of this handbook is 120-mm mortar operations. Subjects include:  MFCS operational knowledge and fire missions  120-mm mortar boresight and sight calibration  MCV unit training  MCV drills  MCV basic issue items, inspection, and load plan  MCV equipment limitations and use during training and deployment  MCV mortar ammunition storage  MCV navigation and mortar platoon/section placement  MCV gunner's examination Unless otherwise stated, whenever the masculine gender is used, both men and women are included. The proponent for this publication is the U.S. Army Infantry School. You may send comments and recommendations by any means, US mail, e-mail, fax, or telephone, as long as you use the format of DA Form 2028, Recommended Changes to Publications and Blank Forms. E mail [email protected] Office/Fax COM 706 545 1619/6138 (DSN 835) US Mail Commandant, USAIS ATTN: ATSH-OTY 7602 Chesney Street Fort Benning, GA 31905-5593 18 February 2009 ST 3-22.7 i