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TRAINING SUPPORT PACKAGE (TSP)

TSP Number 052-12B30-B04052-12C30-A04052-12B30-B04-CET-04

Title Calculate Explosive Requirements For Road Craters

Task Number(s) 052-193-3025

/Title(s) Calculate Explosive Requirements For Road Craters

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: 052-193-3025

Task title: Calculate Explosive Requirements For Road Craters

Conditions: In a classroom, given a hand-held calculator, information for aspecific type of road crater at a designated location, and FM 5-

250.Standard: Calculate the explosive requirements, number of boreholes, type

of formulas to be used, without error using the six step problemsolving format and road crater formulas in accordance with FM5-250.

This TSP

Contains

TABLE OF CONTENTS

Page

Preface 2

Lesson 1 Section I - Administrative Data 3

Section II - Introduction 5Terminal Learning Objective 5

Section III - Presentation 6

A - Enabling Learning Objective 1 6

Section IV - Summary 11

Section V - Student Evaluation 12

Appendixes A - Slides Master 13

B - Test and Test Solutions (Not Applicable) 14

C - Practical Exercise and Solutions 15

D - Student Handout/Advance Sheet 20

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Calculate Explosive Requirements For Road Craters

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 052-193-3025 Calculate Explosive Requirements For Road Craters

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/METH4.0/CO 4.0/CO 0.0 4.0/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 6.0 6.0 6.0

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 July 98 Section Vpages 3-25through 3-33

Student Handout/Advance sheet

StudyAssignments Read FM 5-250 Section V page 3-25, page 3-33, 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 It is important to know how to create craters because you, as a leader in anengineer unit, may be called upon at any time to plan, organize, and supervise anytype of demolition mission. A complete understanding of how to calculatecharges is imperative for successful completion of your mission.

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 Explosive Requirements For Road Crater

Conditions: In a classroom, given a hand held calculator, information forspecific type of road crater and FM 5-250.

Standard: Calculate the explosive requirements, number of boreholes, typeof formula to be used, using the six step problem solving format,

and the road crater formulas, without error in accordance with FM5-250.

Safety

Requirements None

Risk

Assessment

Level Low

Environmental

Considerations None

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

Instructional

Lead-in Ask the students: What makes a crater effective against the enemy?

Expected response: From paragraph 3-53 page 3-25.

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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 for

specific type of road crater and FM 5-250.

Standard: Calculate the explosive requirements, number of boreholes, typeof formula to be used, using the six step problem solving format,and the road crater formulas, without error in accordance with FM5-250.

1. Learning Step/Activity 1: Types, And Considerations For Cratering Charges.

NOTE: Instructor will make the student aware of the minimum safe distance requirement for demolitionsby reviewing the safe distance tables on pages 6-6 thru 6-9

Method of instruction : ConferenceInstructor to student ratio is : 1:16

Time of instruction : 0.8Media used : Slide

NOTE: Show Slide # 1 reference pg 3-25 para 3-53

a. Considerations

(1) The crater must be long enough to tie into other obstacles.

(2) Must be covered by fire to be effective.

(3) Employ where the terrain will assist.

(4) Crater will be more effective if angled across the road.

(5) Integrate or supplement craters with mines, wire, or water.

NOTE: Show Slide # 2 and # 3

b. Ideal Locations

(1) Dense woods

(2) Swamps

(3) Cuts and fills.

(4) Side hill cuts.

(5) Hill crest.

(6) Built up areas.

(7) Inside tunnels.

(8) Airstrips, runways, helipads.(9) Bridges, approaches.

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(10) Fords and ferry landings.

(11) Causeways.

(12) Sharp curves.

NOTE: Show Slide # 4

c. Methods for Boreholes: Explain the advantages and disadvantages of each type.

(1) Manual

(2) Mechanical

(3) Explosives


d. Shape charges

(1) 15 lb

(2) 40 lb

NOTE: Show Slide # 7 and # 8. reference pg 1-11 thur 1-13, Table 1-3

e. Characteristics of shaped demolition charges.

f. Characteristics of borehole made by shaped charges.

NOTE: Show Slide # 9 reference pg 1-9 para 1-38

g. Cratering Charge: Explain the use, advantages, and limitations of cratering charges.

NOTE: Explain that the cratering charge must be dual-primed by attaching 1 pound of explosives to thecharge or placing one cratering charge on top of another.


h. Breaching hard surface pavement

(1) One pound of explosive for each 2 of pavement thickness.

(2) Tamping is twice as thick as pavement


i. Types of craters

(1) Hasty

(2) Deliberate

(3) Relieved face

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

2. Learning Step/Activity 2: Hasty Road Crater.

Method of instruction : ConferenceInstructor to student ratio is : 1:16

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Time of instruction : 1.0Media used : Slide

NOTE: Show Slide # 12 and # 13, pg 3-26 para 3-58

a. Rules & Calculation for a hasty road crater:

(1) Holes spaced 5 feet apart.

(2) Depth minimum 5 feet (all same depth).

(3) Use 10 lbs explosive per foot of hole.

(4) Number of holes: N= L-165+1

NOTE: Explain that a hasty road crater takes the least amount of time to construct, but produces theleast effective barrier because of depth:


b. Placement: Explain the effects when placement is done in the correct manner at 45 degrees.


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

c. Sample problem: Calculate the amount of TNT for a hasty road crater 100 feet long.The holes are to be 6 feet deep, show all work in the six step problem solving format.


d. Solution, clarify any misunderstanding before moving on.

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


3. Learning Step/Activity 3: Deliberate Road Crater.

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 1.0Media used : Slide

NOTE: Show Slide # 18 and # 19. pg 3-27 para 3-63

a. Rules & Calculation for a deliberate road crater

NOTE: Explain why a deliberate crater is a "V" shape and is more effective than a hasty crater.

(1) Holes spaced 5 feet apart.

(2) Must be a 7 foot hole on each end.(3) Alternate 5 and 7 foot holes.

(4) There cant be two 5 foot holes adjacent to each other.

(5) Explosives per hole: 5 hole = 40 lbs per hole, 7 hole = 80 lbs per hole.

(6) Number of holes: N = L-165+1

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b. Placement: Make all measurements at a 45 degree angle across the road. If using crateringcharges, dual prime 5-foot holes with 1 lbs TNT.


c. Sample problem: Calculate the amount of explosives required to construct a deliberate crater76 feet long, using cratering charges and TNT, show all work to include sketch of placement.


d. Solution, clarify any misunderstanding before moving on.


e. Placement solution.



4. Learning Step/Activity 4: Relieved Face Road Crater.

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 1.0Media used : Slide

NOTE: Show Slide # 25 and # 26 pg 3-28 para 3-64

a. Rules & Calculation for a relieved-face crater.

(1) Enemy row = 4 deep and 30 lbs explosives per hole.

(2) Friendly row = 5 deep and 40 lbs explosives per hole.

(3) Holes 7 apart within row.

(4) Rows 8 apart and offset (12 on hard surface)

(5) Initiate enemy row .5 to 1.5 seconds before friendly.

(6) Number of holes on friendly row : NF = L-107 + 1

(7) Number of holes in enemy row is one less than in the friendly row.

NOTE: Explain that the number of holes for the enemy side is the number of holes for the friendly sideminus 1 for the relieved-face crater.NOTE: Show Slide # 27

b. Dual Priming: Go over dual priming with the students.


c. Placement

d. Effects

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e. Sample problem: How many cratering charges and how many 1lb blocks of TNT are neededto create a relieved face road crater 110 feet long?


f. Solution, clarify any misunderstanding before moving on.


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

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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; Section V.

Summarize pages 3-25 through 3-33. Restate the actions, conditions, and standard, restate

Lesson 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. Asking questions and getting answers from the students.

c. Correcting student 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-B04 (Ref TSP 12B30-B07), 12C30-A04 (Ref TSP 12C30-A05), 12B30-B04-CET-

-04 (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 course

graduation 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 Explosive Requirements For Road Craters

1. Considerations2. Ideal Locations3. Ideal Locations (Cont.)4. Methods for Boreholes5. Shaped Charges6. Shaped Charges7. Characteristics of Shaped Charges8. Characteristics of Shaped Charges9. Cratering Charges10. Pavement breaking charges11. Types of craters12. Hasty Road Crater13. Rule of Thumb14. Change placement hasty crater15. Problem One16. Solution17. Solution (Cont.)18. Deliberate Road Crater19. Deliberate Crater

20. Deliberate Crater Placement21. Problem Two22. Solution23. Solution (Cont.)24. Placement Solution25. Relieved Face Road Crater26. Relieved Face Crater Rules27. Dual Priming28. Relieved Face Placement29. Problem30. 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 052-193-3025 / Calculate Explosive Requirements for Road Craters.

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 exerciseTerminal Inform the students of the following terminal learning objective requirements.

Learning

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


Conditions: In a classroom, given a hand-held calculator, information for aspecific type of road crater and FM 5-250.

Standard: Calculate the explosive requirements, number of boreholes, typeof formula to be used, using the six step problem solving format,and the road crater formulas, without error in accordance with FM

5-250.

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

Safety

Requirements None

Risk

Assessment

Level Low

Environmental

ConsiderationsNone

Evaluation The student will accurately calculate all cratering 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-

ment 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 cratering 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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Problem #1 - Hasty Road CraterCreate a hasty road crater of a road with a roadway width of 66 feet. Explosives to beused for the obstacle are 40-pound cratering charges and 1-pound packages of TNT.Determine the number of holes required and the total amount of explosives needed tocreate the crater. You must use the six-step problem solving format and show all work.

Problem #2 - Deliberate Road CraterCreate a deliberate road crater on a road with a roadway width of 41 feet. Explosives tobe used for the obstacle are 40-pound cratering charges and 1-pound packages of TNT.Determine the number of holes required and the total amount of explosives needed to

Problem #3 - Relieved-Face Road CraterCreate a relieved-face road crater on a road with a road way width of 73 feet. Explosivesto be used for the obstacle are 1-pound packages of TNT. Determine the number ofholes required and the total amount of explosives needed to create a crater. You mustuse the six step problem solving format and show all work.

Problem #4 - Hasty Road CraterCreate a hasty road crater on a road with a roadway width of 45 feet. Explosives to beused for the obstacle are 40-pound cratering charges and 1-pound packages of TNT.Determine the number of holes required and the total amount of explosives needed tocreate the crater. You must use the six-step problem solving format and show all work.

Problem #5 - Deliberate Road CraterCreate a deliberate road crater on a road with a roadway width of 84 feet. Explosives tobe used for the obstacle are 40-pound cratering charges and 1-pound packages of TNT.Determine the number of holes required and the total amount of explosives needed tocreate the crater. You must use the six-step problem solving format and show all work.

Problem #6 - Relieved-Face CraterCreate a relieved-face crater on a road with a roadway width of 86 feet. Explosives tobe used for the obstacle are 1-pound packages of TNT. Determine the number of holesrequired and the total amount of explosives needed to create the crater. You must usethe six-step problem solving format and show all work.

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

Feedback

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

ments shortcomings.

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Appendix C: Practical Exercise and Solutions (Continued)

Lesson Title: Calculate Explosive Requirements for Road Craters.

Problem #1 - Hasty Road Crater

1. Critical Dimensions. Hasty road crater, Road is 66 feet wide, Boreholes (minimum depth of 5 feet).Use 40 lbs cratering charges and TNT

2. Calculate for TNT. Rule of thumb: Place 10 lbs of explosive per foot of depth in each boreholeBorehole depth = 5 feet 5 x 10 lbs = 50 lbs of TNT

3. Divide by RE Factor. Not applicable.

4. Round up. Use one 40-lb cratering charge and 10 lbs of TNT to equal 50 lbs of explosive per hole

5. Calculate number of charges. Use formula: N = L - 16 + 15

N = L - 16 + 1 = 66 - 16 + 1 = 50 + 1 = 10 + 1 = 11 boreholes=11charges5 5 5

6. Calculate total amount of explosive. Boreholes are 5 feet deep.ANSWER: One 40-lb cratering charge and 10 lbs of TNT per borehole = 5 boreholes,

11 40-lb cratering charges and 110 lbs of TNT.

Problem #2 - Deliberate Road Crater

1. Critical Dimensions. Deliberate road crater Road is 41 feet wide Use 40 lbs cratering charges andTNT

2. Calculate for TNT. (First, determine number of boreholes)Use formula: N = L - 16 + 1

5N = L - 16 + 1 = 41 - 16 + 1 = 25 + 1 = 5 + 1 = 6 boreholes

5 5 5

3. Divide by RE factor. Not applicable

4. Round up. Rule-of-thumb: 5-foot holes require 40 lbs of explosive;7-foot holes require 80 lbs of explosive

5. Calculate number of charges. Number of holes = number of charges = 6FOUR 7-foot boreholes; TWO 5-foot boreholes

6. Calculate total amount of explosive:2 cratering charges per 7-foot hole = 8 cratering charges1 cratering charge per 5-foot hole = 2 cratering charges1-pound block of TNT per 5-foot hole = 2 1-lb blocks of TNT

ANSWER: TEN 40-lb cratering charges and TWO 1-lb blocks of TNT

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Problem #3 - Relieved-Face Road Crater

1. Critical Dimensions: Relieved-face road crater Road is 73 feet wide Use 1-lb packages of TNT

2. Calculate for TNT: (First determine the location and number of boreholes)Friendly side boreholes: N = L - 10 + 1

7

N = L - 10 + 1 = 73 - 10 + 1 = 63 + 1 = 9 + 1 = 10 boreholes7 7 7

Enemy side boreholes: N = Number friendly - 1N = Number friendly - 1 = 10 - 1 = 9 boreholes

Boreholes on enemy side require 30 lbs explosive; boreholes on friendly side require 40 lbs explosive9 enemy side boreholes x 30 lbs = 270 lbs of TNT

10 friendly side boreholes x 40 lbs = 400 lbs of TNT


4. Round up. Not applicable

5. Calculate number of charges. Number of charges = number of boreholesFriendly side has 10 chargesEnemy side has 9 charges

6. Calculate total amount of explosive.Friendly side = 10 charges = 400 lbs of TNTEnemy side = 9 charges = 270 lbs of TNT

ANSWER: 400 lbs + 270 lbs = 670 1-lb packages of TNT

Problem #4 - Hasty Road Crater

1. Critical Dimensions. Hasty road crater Road is 45 feet wide Boreholes (minimum of 5 feet deep)Use 40 lbs cratering charges and TNT

2. Calculate for TNT. Rule-of-thumb: Place 10 lbs of explosive per foot of depth in each boreholeBorehole depth = 5 feet 5 x 10 lbs = 50 lbs of TNT


4. Round up. Use one 40-lb cratering charge and 10 lbs of TNT to equal 50 lbs of explosive per hole

5. Calculate number of charges. Use formula: N = L - 16 + 15

N = L - 15 + 1 = 45 - 16 + 1 = 29 + 1 = 5.8(round up)= 6 + 1 = 7 boreholes5 5 5

6. Calculate total amount of explosive. Boreholes are 5 feet deep.ANSWER: One 40-lb cratering charge and 10 lbs of TNT per borehole =

7 boreholes; 7 40-lb cratering charges and 70 lb of TNT.

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Problem #5 - Deliberate Road Crater - Solution

1. Critical Dimensions. Deliberate road crater Road is 84 feet wide Use 40 lbs cratering charge and TNT

2. Calculate for TNT. (First, determine number of boreholes) Use formula: N = L - 16 + 15


4. Round up. Rule-of-thumb: 5-foot holes require 40 lbs of explosive;7-foot holes require 80 lbs of explosive

5. Calculate number of charges. Number of holes = number of charges = 15.EIGHT 7-foot boreholes; SEVEN 5-foot boreholes.

6. Calculate total amount of explosives.2 cratering charges per 7-foot hole = 16 cratering charges1 cratering charge per 5-foot hole = 7 cratering charges1-pound block TNT per 5-foot hole = 7 1-lb blocks of TNT

ANSWER: 23 40-lb cratering charges and 7 1-lb blocks of TNT

Problem #6 - Relieved-Face Road Crater - Solution

1. Critical Dimensions. Relieved-face road crater Road is 86 feet wide Use 1-lb packages of TNT

2. Calculate for TNT. (First, determine the location and the number of boreholes)Friendly side boreholes: N = L - 10 + 1

7N = L - 10 + 1 = 86 - 10 + 1 = 76 + 1 = 10.8 (round up) = 11 + 1= 12

7 7 7Enemy side boreholes: N = Number friendly - 1 12 - 1 = 11 boreholesBoreholes on enemy side require 30 lbs of explosive

Boreholes on friendly side require 40 lbs of explosive11 enemy side boreholes x 30 lbs = 330 lbs of TNT12 friendly side boreholes x 40 lbs = 480 lbs of TNT


4. Round up. Not applicable

5. Calculate number of charges. Number of charges = number of boreholesFriendly side has 12 chargesEnemy side has 11 charges

6. Calculate total amount of explosive.Friendly side = 12 charges = 480 lbs of TNT

Enemy side - 11 charges = 330 lbs of TNTANSWER: 480 lbs = 330 lbs = 810 1-lb packages of TNT

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Appendix D: Student Handout/Advance Sheet

Title 12B30-B04, Calculate Explosive Requirements for Road Craters

12C30-A04

12B30-B04-CET-04

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

Learning

Objective


Conditions: In a classroom, given a hand-held calculator, information for aspecific type of road crater and FM 5-250.

Standard: Calculate the explosive requirements, number of boreholes, typeof formula to be used, using the six step problem solving format,and the road crater formulas, without error in accordance with FM5-250.

1. Lesson Summary:

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 completedprior to classroom instruction: FM 5-250, Section V pg 3-25 through 3-33.

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

3. Sequence of Activities:

a. Types, and considerations for cratering charges.

b. Hasty road crater.

c. Deliberate road crater.

d. Relieved face road crater.

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 Explosive Requirements for Road Craters

Problem #1 - Hasty Road CraterCreate a hasty road crater of a road with a roadway width of 66 feet. Explosives to be used for theobstacle are 40-pound cratering charges and 1-pound packages of TNT. Determine the number of holesrequired and the total amount of explosives needed to create the crater. You must use the six-stepproblem solving format and show all work.

Problem #2 - Deliberate Road CraterCreate a deliberate road crater on a road with a roadway width of 41 feet. Explosives to be used for theobstacle are 40-pound cratering charges and 1-pound packages of TNT. Determine the number of holesrequired and the total amount of explosives needed to create the crater. You must use the six-stepproblem solving format and show all work.

Problem #3 - Relieved-Face Road CraterCreate a relieved-face road crater on a road with a roadway width of 73 feet. Explosives to be used forthe obstacle are 1-pound packages of TNT. Determine the number of holes required and the total amountof explosives needed to create the crater. You must use the six-step problem solving format and show allwork.

Problem #4 - Hasty Road CraterCreate a hasty road crater on a road with a roadway width of 45 feet. Explosives to be used for theobstacle are 40-pound cratering charges and 1-pound packages of TNT. Determine the number of holesrequired and the total amount of explosives needed to create the crater. You must use the six-stepproblem solving format and show all work.

Problem #5 - Deliberate Road CraterCreate a deliberate road crater on a road with a roadway width of 84 feet. Explosives to be used for theobstacle are 40-pound cratering charges and 1-pound packages of TNT. Determine the number of holesrequired and the total amount of explosives needed to create the crater. You must use the six-step

problem solving format and show all work.

Problem #6 - Relieved-Face CraterCreate a relieved-face crater on a road with a roadway width of 86 feet. Explosives to be used for theobstacle are 1-pound packages of TNT. Determine the number of holes required and the total amount ofexplosives needed to create the crater. You must use the six-step problem solving format and show allwork.

A-04-DEMO

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