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TRAINING SUPPORT PACKAGE (TSP)

TSP Number 052-12B30-B02052-12C30-A02052-12B30-B02-CET-02

Title Calculate Steel-Cutting Charges

Task Number(s) 052-193-3023

/Title(s) Calculate Steel-Cutting Charges

Effective

Date 010201

Supersedes

TSP(s) All previous TSPs and LPs on this subject dated prior to 010201

TSP User UNITED STATES ARMY ENGINEER SCHOOLFORT LEONARD WOOD, MO 65473-8929AND TASS SCHOOL BATTALIONS

Proponent UNITED STATES ARMY MANEUVER SUPPORT CENTERDIRECTORATE OF TRAINING DEVELOPMENTFORT LEONARD WOOD, MO 65473-8929

Comments/ Send comments and recommendations directly to

Recommen COMMANDER, UNITED STATES ARMY MANEUVER SUPPORT CENTER

dations DIRECTORATE OF TRAINING DEVELOPMENTATTN: ATZT-DT-WR-E

FORT LEONARD WOOD, MO 65473-8929

Foreign This product has been reviewed by the product developers in coordination with the Fort

Disclosure Leonard Wood foreign disclosure authority. This product is releasable to military

Restrictions students from foreign countries on a case-by-case basis.

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PREFACE

Purpose This training support package provides the instructor with a standard lesson planfor presenting instruction for:

Task number: 052-193-3023

Task title: Calculate Steel-Cutting Charges

Conditions: In a classroom, given a hand-held calculator and the information

needed to calculate charges with a formula and FM 5-250.Standard: Calculate Steel Cutting Charges, without error using the six stepproblem solving format and steel cutting formulas in accordancewith FM 5-250.

This TSP

Contains

TABLE OF CONTENTS

Page

Preface 2

Lesson 1 Section I - Administrative Data 3

Section II - Introduction 5

Terminal Learning Objective 5Section III - Presentation 6

A - Enabling Learning Objective 1 6

Section IV - Summary 13

Section V - Student Evaluation 14

Appendixes A - Slides Master 15

B - Test and Test Solutions (Not Applicable) 16

C - Practical Exercise and Solutions 17

D - Student Handout/Advance Sheet 21

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Calculate Steel-Cutting Charges

010201

SECTION I. ADMINISTRATIVE DATA

All Courses COURSE NUMBER(S) COURSE TITLE(S)

Including 030-12B30 Combat Engineer (BNCOC)

This Lesson 030-12C30 Bridge Crewmember (BNCOC)TATS CET SL30 Common Engineer Training (BNCOC)

Task(s) TASK NUMBER TASK TITLE

Taught or

Supported 052-193-3022 Calculate Steel-Cutting Charges

Reinforced TASK NUMBER TASK TITLE

Tasks None

Academic The Academic hours required to teach this course are as follows:

Hours:PEACETIME MOBILIZATION DL ADT IDTHRS/METH HRS/METH HRS/METH HRS/METH HRS/METH5.0/CO 5.0 /CO 0.0 5.0/CO 0.02.0/PE 2.0 /PE 2.0/PE

*Test 0.0 0.0 0.0

*Test Review 0.0 0.0 0.0

Total Hours 7.0 7.0 7.0

Test Lesson

Number HOURS LESSON NUMBERTesting: 4.0 052-12B30-B07

2.5 052-12C30-A053.0 052-12B30-B07-CET-13

Review of test results: 1.0 052-12B30-B070.5 052-12C30-A051.0 052-12B30-B07-CET-13

Prerequisite LESSON NUMBER LESSON TITLE

Lesson(s) 052-12B30-B01 Calculate Timber-Cutting Charges052-12C30-A01 Calculate Timber-Cutting Charges

Clearance

and Access Unclassified

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References

NUMBER TITLE DATE PARA. NO. ADDITIONALINFORMATION

FM 5-250 Explosives and Demolitions July1998

pages 3-10through 3-18,and Tableson 6-6through 6-9

Student Handout/Advance sheet

Study

Assignments Read FM 5-250 page 3-10, through 3-18 and review the safe distance tables onpages 6-6 through 6-9 prior to class.

Instructor

Requirements 1 ITC/SGI Certified Instructor, per classroom.

Additional

Support

Personnel

Requirements None

Equipment

Required Calculator / Overhead Projector / Chalkboard or Dry Erase Board.Computerized Instructor Machine, ANDEV-COM-CIM

Materials INSTRUCTOR MATERIALS: TSP, FM 5-250.

RequiredSTUDENT MATERIALS: FM 5-250, Student notes and handouts

Classroom,

Training

Area, and

Range

Requirements 16 Students per classroom

Ammunition

Requirements None

Instructional Before presenting this lesson, instructors must thoroughly prepare by

Guidance studying this lesson and identified reference material.

Proponent Name Rank Position Date

Lesson RALPH TURNER SFC 12B30 COURSE MANAGER 010201

Plan HAROLD DROSSEL CIV Chief, CMF 12 DOTD 010201

Approvals OLLIE JACKSON CIV Chief Warrior Eng. Div. 010201

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SECTION II. INTRODUCTION

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 0.1Media used : None

Motivator In steel cutting charges, the type, size, and placement of the explosive areimportant for success. Confinement or tamping of the charge is rarely practical orpossible. Formulas for computing the size of the charge vary with the typeof steel such as structural or high-carbon. placement of the charge indirect contact with the target is more important with steel than other materials.

Terminal Note: Inform the students of the following terminal learning objective requirements.

Learning

Objective At the completion of this lesson you (the student) will:

Action: Calculate Steel-Cutting Charges

Conditions: In a classroom, given a hand held calculator, information neededto calculate charges with a formula and FM 5-250.

Standard: Calculate all steel cutting charges without error, using the six step

problem solving format, and steel-cutting formulas, in accordancewith FM 5-250.

Safety

Requirements None

Risk

Assessment

Level Low

Environmental

Considerations None

Evaluation The student will demonstrate skills/knowledge by scoring 70% or higher onthe end of annex examination.

Instructional

Lead-in Ask the students: What are some of the steel-cutting missions that CombatEngineers may encounter?Expected response: Bridge demolitions, steel bars/rods, reinforcement forconcrete, etc

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SECTION III - PRESENTATION

A. Enabling Learning Objective A

NOTE: Inform the students of the Enabling Learning Objectives requirements.


Conditions: In a classroom, given a hand-held calculator, information

needed to calculate charges with a formula and FM 5-250.

Standard: Calculate steel-cutting charges, without error using the six stepproblem solving format, and steel cutting formulas, inaccordance with FM 5-250.

1. Learning Step/Activity 1: Types of steel cutting charges.

NOTE: Before beginning the lesson make the student aware of the minimum safe distance requirementfor demolitions by reviewing the safe distance tables on pages 6-6 through 6-9. Safe distances formulafor the amounts not listed in tables will be explained at the end of annex After Action Review.

Method of instruction : Conference

Instructor to student ratio is : 1:16Time of instruction : 0.6Media used : Slide

a. Types of steel cutting charges

(1) Considerations.

(a) Type of steel.(Target factors) pg. 3-10 PARA (3-21 through 3-23)

(b) Types of explosives.(Explosive factors) used. pg. 3-11 PARA (3-24 through 2-26)

(c) Size of charge. pg. 3-11PARA (3-27)

NOTE: Show Slide # 1. reference FM 5-250 pg. 3-12 PARA 3-28/3-33

(2) Block charges.

(3) Special charges.

NOTE: Show Slide # 2. reference FM 5-250 pg. 3-12

b. Block charges.

(1) Formula P=3/8A or P=0.375A

(2) Hasty calculation.

NOTE: Conduct a check on learning and summarize the learning activity.

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2. Learning Step/Activity 2: Formula to calculate steel-cutting charges.

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 0.8Media used : Slide

NOTE: Show Slide # 3

a. Formula used to cut mild or structured steel. (P = 3/8A or constant 0.375A)


NOTE: Show actual I-beam if available and visually explain each section of the beam.b. Parts of I-Beams.

(1) Flange.

(2) Web.


c. Determine area of a steel I-Beam.

(1) Determine area of flanges.

(2) Determine area of web.

(3) Determine total area in square inches.

NOTE: Make up several examples of determining area, have the class work them out, and

discuss / review, walk students through first problem.


d. Determine amount of explosives.

(1) Multiply area of target by 3/8. Or 0.375

(2) Answer is in pounds of TNT.

NOTE: Inform the class that the remainder of the six-step problem solving format is the same as fortimber-cutting.

NOTE: Walk students through the first problem on the board to help in understanding.


e. Problem: How much C-4(M112) for 4 steel I beams that have a web of 12 x 1 and

flanges that are 15 x 1?


f. Solution: Clarify any misunderstanding before moving on to next problem.

NOTE: Show Slide # 9. (allow students 3 minutes to work problem).

g. Problem: How much C-4(M112) for 12 steel I beams that have a web of 9.5 x 1 and flangesthat are 9 x 3/4?


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h. Solution: Clarify any misunderstanding before moving on to next problem

NOTE: Give example problems (made up by instructor) to clarify understanding.


3. Learning Step/Activity 3: Hasty method to calculate steel-cutting charges.

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 0.8Media used : Slide

NOTE: Show Slide # 11. FM 5-250 pg. 3-12 Table 3-3

a. Calculating for TNT.

(1) Used to determine amount of TNT.

(2) Explain how to use.

NOTE: Show Slide # 12. FM 5-250 pg. 3-13 Table 3-4

b. Calculating for C-4.

(1) Explain chart.

(2) Explain notes.

NOTE: Walk students through the first problem on the board to help in understanding


c. Problem: Using the hasty method how much TNT is needed for a steel I beam that has a

web of 10 x 3/8 and flanges that are 5 x 1?


d. Solution: Clarify any misunderstanding before moving on to next problem.

NOTE: Show Slide # 15. (allow students 3 minutes to solve problem)

e. Problem: Using the hasty method how many packages of C-4(M112) are required to cut 5,I beams with dimensions of 8 x 1/2 for the flanges, and 10 x 1 for the web?


f. Solution. Clarify any misunderstanding before moving on to next problem.

NOTE: Make up problems for the group to work out and review the results to clarify understanding.


4. Learning Step/Activity 4: Rule of the thumb (rail, cable ,chain ,rods and bars)

Method of instruction : Conference

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Instructor to student ratio is : 1:16Time of instruction : 0.5Media used : Slide

NOTE: Show Slide # 17 reference FM 5-250 pg. 3-12

a. Destruction of cables, chains, rods, and bars.

(1) Formula: P=D2

High Carbon Alloy Steel

(2) Rule of thumb Structual Steel

* Up to 1 diameter use 1 lb* Over 1 to 2 diameter use 2 lb* Over 2 use P=3/8A

NOTE: Show Slide # 18 reference FM 5-250 pg. 3-13/ Figure 3-10

b. Railroad rail destruction

(1) Rules for Pounds TNT or C-4 per charge.

* Rails less than 5 use 1/2 lb

*Rails 5 or more use 1 lb* Place charges at alternate rail splices for a distance of 500 feet

NOTE: Show Slide # 19 reference FM 5-250 pg. 3-13 / Figure 3-10

(2) Frogs. (2 lb).

(3) Crossovers. (1 lb).

(4) Switches. (1 lb).

NOTE: Conduct a check on learning and summarize the learning activities.

5. Learning Step/Activity 5: Calculate special steel-cutting charges

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 1.1Media: Slide

NOTE: Show Slide # 20. FM 5-250 pg. 3-14 Section III

a. Special charges.

(1) Ribbon.

(2) Saddle.

(3) Diamond.

NOTE: Use C-4 (M112) or Sheet explosive (M118) ONLY.

NOTE: Show Slide # 21 (pg. 3-15)

b. Ribbon Charge(determine volume for M112).

(1) Charge thickness: 1/2 TGT but never less than 1/2 inch.

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(2) Charge width: 3 times the charge thickness.

(3) Charge length: length of TGT to be cut

(4) Volume of charge: TxWxL = volume cubic inches needed

(5) Maximum target thickness: 3 inches


NOTE: Use I-beam and molding clay if available

(6) Determining volume of charge.

(7) Size of target (critical dimensions).

(8) Size of charge.

(9) Volume of charge.


NOTE: Walk students thru this first problem on the board to help in understanding.

c. Problem: How much C-4 (M112) is required to cut a plate with a width 24 and thickness 0f 2using the MINIMUM amount of explosive?


d. Solution, Clarify any misunderstanding before moving on to next problem.

NOTE: Make up problems for the group to work out and review the results to clarify understanding.


e. Sample problem and solution.

* Determine length of charge.

* Determine dimensions of charge.

* Determine volume of charge.

NOTE: Show Slide # 26 (allow soldiers 3 minutes to work problem).

f. Problem: How much C-4 is needed for 15 I beams using a ribbon charge with a web of14 x 2 and flanges that are 19.5 x 2?

NOTE: Show Slide # 27 and # 28

g. Solution. Clarify any misunderstanding before moving on to next problem.

NOTE: Conduct a check on learning and summarize the learning activities

6. Learning Step/Activity 6: Saddle Charge


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NOTE: Show Slide # 29 reference FM 5-250 pg. 3-16

a. Saddle Charge

1. Use on round or rectangular steel up to 8 in diameter .

2. Charge shape: Long axis-distance around target in inches, Base-1/2 distance around targetin inches.

3. Determining charge volume = Long axis x base x 1/2 = vol.cu.in(LAxBx1/2=vol.cu.in.)

4. Charge thickness 1 thick.


NOTE: Walk students thru the first problem on the board to help in understanding.

b. Problem: How much C-4 (M112) is required to cut one mild steel bar with a circumference of16 using a saddle charge?


c Solution, Clarify any misunderstanding before moving on to next problem

NOTE: Show Slide # 32 (allow soldiers 3 minutes to work problem).

d. Problem: How much C-4 (M112) is required to cut a steel bar 8 times with a circumference of15 using the saddle charge?


e. Solution, Clarify any misunderstanding before moving on to next problem


7. Learning Step/Activity 7: Diamond Charge


NOTE: Show Slide # 34 reference FM 2-250 pg. 3-17 PARA 3-36

a. Diamond charge

(1) Use on any steel round or rectangular up to 8 diameter (not pipe).

(2) Charge shape: Long axis=distance around target, Short axis=1/2 distance aroundtarget(3) Determine volume: Long axis x Short axis x .5 (LA x SA x .5= vol.cu.in.)

(4) Charge thickness 1 thick.

NOTE: Walk student thru the first problem on the board to help in understanding.


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b. Problem: How much C-4 (M112) is required to cut one steel plate with a circumference of24 using the diamond charge?


c. Solution, Clarify any misunderstanding before moving on to next problem

NOTE: Show Slide # 37 (allow soldiers 3 minutes to solve problem).

d. Problem: How many packages of sheet explosive (M118) is required to cut 6 bars with acircumference of 14 using the diamond charge?


e. Solution, Clarify any misunderstanding before moving on to next problem


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SECTION IV - SUMMARY

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 0.1Media used : None

Review/ Inform the students that this lesson can be reviewed in FM 5-250; pages 3-10

Summarize through 3-18 and tables 6-6 through 6-9. Restate the action, conditions, and

Lesson restate the learning activities, and then check on learning

Check On Determine if students have learned the material presented by--

Learninga. Soliciting student questions and explanations.

b. Ask questions and getting answers from the students.

c. Correcting students misunderstandings

Transition

To Next

Lesson Inform students the next lesson will be the practical exercise.

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SECTION V STUDENT EVALUATION

Testing Student will be evaluated on a written examination for the POI File number

Requirements 12B30-B02 (Ref TSP 12B30-B07),12C30-A02 (Ref TSP 12C30-A05),12B30-B02-CET-

02(Ref TSP 12B30-B07-CET-13). Student must score 70% or higher to receive a

GO.

A 1 hour After Action Review will be conducted after the examination for 12Bs and

CET. A 30 minute After Action Review will be conducted for the 12Cs.

NOTE: Include this information also in the Student Evaluation Plan which documents coursegraduation requirements. The using school assigns course weight to the evaluation.

NOTE: Rapid, immediate feedback is essential to effective learning. Schedule and providefeedback on the evaluation and any information to help answer students questions aboutthe test. Provide remedial training as needed.

Feedback

Requirement The instructor must forward problems with the TSP to the proponent.

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Appendix A: Slides Master

Lesson Title: Calculate Steel-Cutting Charges

1. Steel-Cutting Charges2. Block Charges3. Formula for Mild or Structural Steel4. Cross Sectional Area of Target = "A"5. Cross Sectional Area of Target = "A"6. Calculate for TNT7. Problem8. Solution9. Problem10. Solution11. Hasty Calculation12. C-4 Needed to Cut Steel Sections13. Problem Using Hasty Calculation14. Solution15. Problem Hasty Calculation16. Solution17. Calculating - Cables-Chains-Rods-Bars "Rule of Thumb"18. Rail Road Destruction "Rule of Thumb"19. Railway Destruction "Rule of Thumb"

20. Special Charges21. Ribbon Charge22. Dimension Calculation (Ribbon Charge)23. Problem24. Solution25. Problem & Solution26. Problem27. Solution28. Solution (Cont.)29. Saddle Charge30. Problem31. Solution32. Problem

33. Solution34. Diamond Charge35. Problem36. Solution37. Problem38. Solution

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Appendix B: Test and Test Solutions

Not Applicable

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Appendix C: Practical Exercise and Solutions

PRACTICAL EXERCISE SHEET NO. 1

Title 052-193-3023 / Calculate Steel-Cutting Charges

Introduction Give detailed instructions on what is expected during the practical exercise.Work each problem using the six-step problem solving format.

Motivator Instructor will include the motivator for this practical exercise.Terminal Inform the students of the following terminal learning objective requirements.

Learning

Objective At the completion of this lesson you (the student) will:



Standard: Calculate all steel cutting charges without error, using the six stepproblem solving format, and the steel-cutting formulas, in

accordance with FM 5-250.

Method of instruction : Practical ExerciseInstructor to student ratio is : 1:16Time of instruction : 2.0Media : Student handout

Safety

Requirements None

Risk

Assessment

Level Low

Environmental

Considerations None

Evaluation The student will accurately calculate all-cutting charges using the six-stepproblem solving format.

Instructional All work must be shown in the six step problem solving format in order for short

Lead-in comings to be identified by the instructor.

Resource

Require-

ments Calculator / Overhead Projector / Chalkboard or Dry Erase Board.

Special Allow students 1 hour to solve problems, then review answers the second hour.

Instructions The student will accurately calculate all steel-cutting charges using the six-stepproblem solving format in order for short comings to be identified by the instructor.Review the solutions to the practical exercise and review any questions and/orshortcomings.

Procedures Students will work the following problems.

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1. How many packages of TNT are required to cut 5 steel I-Beams with dimensions of10" x 1/2" for the flanges, and 12" X 1/2" for the web? Use the formula forstructural steel.

2. How many packages of C-4 (M112) are required to cut 6 steel I-Beams with dimensionof 8" x 5/8" for the flanges, and 10"x 5/8" for the web? Use the C-4 table method forstructural steel.

3. Using a ribbon charge, how many packages of sheet explosives (M118) are requiredto cut 4 steel I-Beams with dimensions of 8" x 1/4" for the flanges and 12" x 1/4" for theweb?

4. Using a saddle charge, how many packages of C-4 (M112) are required to cut 5 steelbars 18" in circumference?

5. Using a diamond charge, how many sheets of M118 (sheet explosives) are required tocut 9 high carbon steel bars 20" in circumference?

NOTE: Students that finish early will be given additional problems made up by theinstructor.

Feedback

Require- Review the solutions to the practical exercise and review any questions and/or

ments shortcoming

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Appendix C: Practical Exercise and Solutions

Lesson Title: Calculate Steel cutting Charges

1. Step 1: 5 steel I-Beams10" x 1/2" - Flanges12" x 1/2" - Web

Step 2: P = 3/8 AP = 3/8 (10 x 1/2) + (10 x 1/2) + (12 x 1/2)P = 3/8 x 16 = 6 lbs TNT

Step 3: OmitStep 4: 6 lbs TNTStep 5: 5 beams = 5 chargesStep 6: 6 x 5 = 30 packages TNT

2. Step 1: 8" x 5/8" - Flange8" x 5/8" - Flange10" x 5/8" - Web6 = I Beams

Step 2: 8" x 5/8" = 1.5 lbs8" x 5/8" = 1.5 lbs10" x 5/8" = 1.8 lbs

Total = 4.8 lbs C-4Step 3: N/A

Step 4: 4.8 1.25=3.4 round up 4 packages C-4 (M112)Step 5: 6 beams = 6 chargesStep 6: 6 x 4 = 24 packages C-4 (M112)

3. Step 1:

Tx Wx L =

TF .5 1.5 7.75 5.81

W .5 1.5 11 8.25

BF .5 1.5 7.75 5.81

19.87

Step 2: N/AStep 3: N/AStep 4: 19.87 cu in = 2.20 o 3 sheets M118

9 cu inStep 5: 4 beams = 4 chargesStep 6: 4 x 3 = 12 sheets M118 (Sheet explosives)

4 = 3 pkgs

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Appendix C: Practical Exercise and Solutions (Continue)

Lesson Title: Calculate Steel cutting Charges

4. Step 1: C = 18"Step 2: Long axis x base x 1/2 = vol. cu. in.

18 x 9 x 1/2 = 81 cu. in.Step 3: N/AStep 4: 81 = 4.05 _ 5 packages C-4 (M112)

20Step 5: 5 bars = 5 chargesStep 6: 5 x 5 = 25 packages C-4 (M112)

5. Step 1: C = 20"Step 2: Long axis x short axis x 1 = vol. cu. in.

220 x 10 x 1 = 100 cu. in.

2Step 3: N/AStep 4: 100 cu in = 11.11 o 12 sheets M118 (sheet explosives)

9 cu inStep 5: 9 bars = 9 charges

Step 6: 9 x 12 = 108 sheets M118 (sheet explosives)

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Appendix D: Student Handout/Advance Sheet

Title 12B30-B02, Calculate Steel-Cutting Charges

12C30-A02

12B30-B02-CET-02

Terminal At the completion of this lesson you (the student) will:

Learning

ObjectiveAction: Calculate Steel-Cutting Charges


Standard: Calculate steel cutting charges without error, using the six stepproblem solving format, and steel cutting formulas, in accordancewith FM 5-250.

1. Lesson Summery:

a. Safety : Will be integrated, observed, and evaluated at all times.

b. Environmental : No major environmental impact

c. Risk assessment : Low

2. General Instructions:

a. Conduct student reading The following reading/familiarization will be completed priorto classroom instruction: FM 5-250, pg. 3-10 through 3-18. And Tables 6-6 through 6-9

b. Participate in practical exercises.(see attached PE sheet)

3. Sequence of Activities:

a. Types of steel cutting charges.

b. Formula to calculate steel cutting charges.

c. Hasty method to calculate steel cutting charges.

d. Rule of the thumb for rail, cables chains rods, and bars.

e. Special steel cutting charges(ribbon, saddle, and diamond).

4. Upon completion of each performance measure have instructor check your work.

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Appendix D: Student Handout/Advance Sheet (Continued)

Lesson Title: Calculate Steel-Cutting Charges

1. How many packages of TNT are required to cut 5 steel I-Beams with dimensions of 10" x 1/2" for theflanges, and 12" X 1/2" for the web? Use the formula for structural steel.

2. How many packages of C-4 (M112) are required to cut 6 steel I-Beams with dimension of 8" x 5/8" forthe flanges, and 10"x 5/8" for the web? Use the C-4 table method for structural steel.

3. Using a ribbon charge, how many packages of sheet explosives (M118) are required to cut 4 steel I-Beams with dimensions of 8" x 1/4" for the flanges and 12" x 1/4" for the web?

4. Using a saddle charge, how many packages of C-4 (M112) are required to cut 5 steel bars 18" incircumference?

5. Using a diamond charge, how many sheets of M118 (sheet explosives) are required to cut 9 highcarbon steel bars 20" in circumference?

A-02-DEMO

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