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TRAINING SUPPORT PACKAGE (TSP)

TSP Number 052-12B30-B01052-12C30-A01052-12B30-B01-CET-01

Title Calculate Timber-Cutting Charges

Task Number(s) 052-193-3022

/Title(s) Calculate Timber-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: 052-193-3022

Task title: Calculate Timber -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 timber cutting charges, without error using the six step

problem solving format using the timber cutting formulas inaccordance with 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 12

Section V - Student Evaluation 13

Appendixes A - Slides Master 14

B - Test and Test Solutions (Not Applicable) 15

C - Practical Exercise and Solutions 16

D - Student Handout/Advance Sheet 19

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Calculate Timber -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 Timber -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 IDT

HRS/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) None

Clearance

and Access Unclassified

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References

NUMBER TITLE DATE PARA. No ADDITIONAL

INFORMATION

FM 5-250 Explosives and Demolitions July1998

pages 3-1through 3-10

Student Handout/Advance Sheet

StudyAssignments Read FM 5-250 page 3-1, page 3-10, section II normal cutting charges and page 3-33

Stump Removal, prior to class.

Instructor

Requirements 1 ITC/SGI Certified Instructor, per classroom.

Additional

Support

Personnel

Requirements None

Equipment

Required Calculator / Overhead Projector / Chalk Board 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

AmmunitionRequirements 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 As a squad leader it is your responsibility to ensure proper demolition effect, correctcalculation of demolition charges is essential to produce the desired effect, impropercalculations may lead to mission failure.Non-Commissioned Officers must maintain ultimate responsibility for the demolitionsystems design, ensuring the safe and efficient application of explosives.

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 Timber-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 timber-cutting charges without error, using the six-

step problem solving format, using the timber-cutting formulas, inaccordance with 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 on theend of annex examination.

Instructional

Lead-in Ask the students: What would be some of the effects of improper chargecalculations when timber cutting?Expected response: Under/Over kill causing mission failure.

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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 all timber-cutting charges without error, using the six-step problem solving format, using the timber-cutting formulas,in accordance with FM 5-250.

1. Learning Step/Activity 1: Demolition principles / Six step problem solving format.

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 0.4Media used : Slide

NOTE: Show Slide # 1. (ref. pg 3-1 through 3-10, 3-33)

a. Demolition Principles .(pg 3-1 through 3-5)

(1) Detonation effects.

(2) Charge - dimension significance

(3) Charge.- placement significance

NOTE: Show Slide # 2.

B. Types of charges

(1) Internal

(2) External

NOTE: Show Slide # 3 and 4.

c. Charge calculation determination

d. Charge selection and calculation

NOTE: Show Slide # 5. reference FM 5-250 pg 3-4 para 3-10)(six step problem solving format)

e. Problem solving format

(1) Identify and measure the critical dimensions.

(2) Calculate for TNT.

(3) Divide by RE Factor.

NOTE: Show Slide # 6 (discuss). reference FM 5-250 pg 1-6 table 1-2

NOTE: Show Slide # 7 (continue to discuss format).

(4) Round up next package size.

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(5) Calculate number of charges.

(6) Calculate total amount of explosives.

NOTE: Show Slide # 8

f. Results of improper charge calculation.

(1) Underkill

a) Mission failure.

b) Obstacle incomplete.

(2) Overkill

a) Waste of explosives.

b) Obstacle ineffective.

c) Mission failure.

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

2. Learning Step/Activity 2: Timber cutting charges

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 0.4Media used: Slide


a. Types of timber charges

(1) Internal timber cutting.(pg 3-5)

(2) External timber cutting.(pg 3-6)

(3) Ring charge.(pg 3-7)

(4) Abatis(pg 3-8)

(4) Stump removal.(pg 3-33)

NOTE: Show Slide # 10 reference FM 5-250 pg 3-5 para 3-11

b. Test shots

(1) Hardwood

a) Structure of wood.

b) Coarseness.

(2) Softwood

a) Structure of wood.b) Coarseness.

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3. Learning Step/Activity 3: Internal Tamped


NOTE: Show Slide # 11 reference FM 5-250 pg 3-5, para 3-12)

a. Internal tamped formula.

Formula, P=D2

250 or P= 0.004 D2

D = C explain (pie) to the students

= 3.14


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

b. Sample problem. use C-4 (M112), Circumference =110


c. Solution. clarify any misunderstanding before moving on

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

NOTE: Show Slide # 14 (allow 5 minutes for students to work problem).

d. Sample problem, How much C-4 (M112) is required to cut a tree 38 in diameter using the

internal charge.


e. Solution. clarify any misunderstanding before moving on.



4. Learning Step/Activity 4: External Timber.


NOTE: Show Slide # 16 reference FM 5-250 pg 3-6

a. External untamped formula

P=D2

40 or P= 0.025D2

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NOTE: Walk students through this problem on the board to help in understandingb. Sample problem, How much C-4 (M112) is required to cut a tree 48 in diameter using theexternal formula?


c. Solution, clarify any misunderstanding before moving on.


NOTE: Show Slide # 19 5 minutes for students to work problem).

d. Sample problem. How much C-4 (M112) is required to cut a tree 60 in diameter using theexternal formula?


e. Solution, clarify any misunderstanding before moving on.


5. Learning Step/Activity 5: Ring Charge.


NOTE: Show Slide 21 reference FM 5-250 pg 3-7/8.

a. Ring charge formula

P=D2

40 or P= 0.025D2


b. Ring charge construction

(1) Cut explosives (C4 block lengthwise)

(2) Place pieces end to end on the adhesive side of tape, repeat until desired length isattained.

(3) Extra used to widen the charge.

(4) Press joints together and reinforce with tape.

(5) Fold tape up and over to enclose the explosive.

(6) Reinforce joints again.

(7) Coil the charge for transportation or place directly on face of the target.

6.. Learning Step/Activity 6: Abatis.

Method of instruction : Conference

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

NOTE: Show Slide 23. reference FM 5-250 pg 3-8.

a. Abatis Formula

P= D2

50 or P= 0.02D2


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

b. Sample problem. How much C-4 (M112) is needed to create an abatis of 25 trees with theaverage diameter of 30?


c. Solution, clarify any misunderstanding before moving on.


NOTE: Show Slide # 26allow 5 minutes for students to work problems).

d. Sample Problem. How much C-4 (M112) is required to create an abatis with 245 treesmeasuring 120 in circumference?


e. Solution, clarify any misunderstanding before moving on.


NOTE: Show Slide # 28. pg. 3-9 (Table on pg. 3-10)

f. Table method

(1) Type of charge.

(2) Explosive used (C-4).

(3) Notes (explain each note).



g. Sample problem. How many packages of C-4 (M112) are required to externally cut one tree26 in diameter (USE THE TABLE METHOD)

NOTE: Show Slide 30

h. Solution. clarify any misunderstanding before moving on.


7. Learning Step/Activity 7: Stump Removal.

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NOTE: Show Slide # 31. reference FM 5-250 pg 3-33(Section VI Land Clearing Charges)

a. Stump removal, Rules of thumb

(1) Dead stump. (1lb per foot of diameter)

(2) Live stump. (2 lbs per foot of diameter)

(3) Standing trees. regardless if there live or dead (3lbs per foot of diameter)

(4) Round up to next 1/2 foot. (measurements are taken 12 to 18 above the ground.



b. Sample problem. How many packages of dynamite (M1) are required to remove 15 deadstumps, 3 feet in diameter?


c. Solution. clarify any misunderstanding before moving on.

NOTE: Give example problems (made up by the instructor) to clarify student understanding.(Ensure to make up a problem to remove a standing tree using stump removal formula)

NOTE: Show Slide # 34 (allow 5 minutes for students to work problem).

d. Sample Problem. How many packages of C-4 (M112) are required to remove 12 live trees, 2feet in diameter, using the stump removal formula?


e. Solution. clarify any misunderstanding before moving on.


NOTE: The instructor will make the student aware of the minimum safe distance requirement for

demolitions, by reviewing the safe distance tables on pages 6-6 and 6-7. Safe distances formula

for the amounts not listed in tables will be explained at the end of annex After Action Review.

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SECTION IV - SUMMARY

Method of instruction : ConferenceInstructor to student ratio is : 1:16Time of instruction : 0.1Media used : Student handout

Review/ Inform the students that this lesson can be reviewed in FM 5-250; pages 3-1

Summarize through 3-10/ 3-33/34. Restate the action, conditions, and standard, restate the learning

Lesson 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-B01 (Ref TSP 12B30-B07), 12C30-A01 (Ref TSP 12C30-A05), 12B30-B01-CET-

-01 (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 Timber-Cutting Charges

1. Demolition Principles2. Types of Charges3. Charge calculation determination4. Charge calculation determination (Cont.)5. Problem Solving Format6. Characteristics of block demolition charges7. Problem Solving Format8. Results of Improper Charge Calculation9. Timber cutting charges10 Test Shot11 Internal Charges12 Problem13 Solution to Problem on Slide #1214. Problem15. Solution to Problem on Slide #1416. External Timber17. Problem18. Solution to Problem on Slide #1719. Problem

20. Solution to Problem on Slide #1921 Ring Charge22 Construction of a Ring Charge23. Abatis24. Problem25. Solution to Problem on Slide #2426. Problem27. Solution to Problem on Slide #2628. Table 3-2 Timber-Cutting Charge size29. Problem30. Solution to Problem on Slide #2931. Stump Removal Rule of Thumb32. Problem

33. Solution to Problem on Slide #3234. Problem35. Solution to Problem on Slide #34

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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 052-193-3022 / Calculate Timber-Cutting Charges

Introduction Give detailed instructions on what is expected during the practical exercise. Workeach 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:


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

Standard: Calculate all timber-cutting charges without error, using the six-step problem solving format, and the timber-cutting formulas, 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

Considerations None

Evaluation The student will accurately calculate all timber-cutting charges using the sixstep problem 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 / Chalk Board 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 timber-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. You are to cut 26 trees, each with a diameter of 42 inches. M112 (C-4) blockswill be used and the charges will be placed externally and untamped. How many blocksof explosives will be required to complete the mission?

2. You are to cut 15 trees, each with a diameter of 38 inches. Dynamite will be used andthe charges placed internally and tamped. How many 1/2-lb. sticks of dynamite will berequired to complete the mission?

3. You are to create an abatis with 135 trees. The trees have a diameter of 29 inches.The placement of the charges will be external and untamped. M112 (C-4) will be utilized.

How many packages of explosives will be required to complete the mission?

4. You are to remove 42 live stumps, each having a diameter of 22 inches. How many1/2-1b packages of dynamite will be required to complete the mission?

5. You are to cut 9 trees each having a diameter of 27 inches. Using a ring charge ofM112 (C-4) blocks, how many packages of explosives will be required to completethe mission?

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 (Solutions)


1. Step 1: D = 42"Step 2: P = D

2= 42 x 42 = 44.1 lbs TNT

40Step 3: 44.1 = 32.91 lbs C-4 (M112)

1.34Step 4: 32.91 = 26.32 o 27 packages C-4 (M112)

1.25Step 5: 26 trees = 26 chargesStep 6: 27 x 26 = 702 packages C-4 (M112)

2. Step 1: D = 38"Step 2: P = D

2= 38 x 38 = 5.77 lbs TNT

250Step 3: 5.77 = 6.27 lbs dynamite

.92Step 4: 6.27 = 12.54 o 13 packages dynamite

.5Step 5: 15 trees = 15 charges

Step 6: 15 X 13 = 195 packages dynamite3. Step 1: D = 29"

Step 2: P = D2

= 29 x 29 = 16.82 lbs TNT50

Step 3: 16.82 = 12.55 lbs C-4 (M112)1.34

Step 4: 12.55 = 10.04 o 11 packages C-4 (M112)1.25

Step 5: 135 trees = 135 chargesStep 6: 135 X 11 = 1485 packages C-4 (M112)

4. Step 1: D = 22" o 2'Step 2: 2 lbs/foot2 x 2 = 4 lbs explosives per charge

Step 3: N/AStep 4: 4 = 8 packages M1 (dynamite)

.5Step 5: 42 stumps = 42 chargesStep 6: 42 X 8 = 336 packages M1 (dynamite)

5. Step 1: D = 27"Step 2: P = D

2= 27 x 27 = 18.22 lbs TNT

40Step 3: 18.22 = 13.59 lbs C-4 (M112)

1.34Step 4: 13.59 = 10.87 o 11 packages C-4 (M112)

1.25Step 5: 9 trees = 9 chargesStep 6: 9 x 11 = 99 packages C-4 (M112)

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Appendix D: Student Handout/Advance Sheet

Title 12B30-B01, Calculate Timber-Cutting Charges

12C30-A01

12B30-B01-CET-01

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

Learning

ObjectiveAction: Calculate Timber-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 timber-cutting charges without error, using the six-step problem solving format, and the timber-cutting formulas, inaccordance with FM 5-250.

1. Lesson Summary

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

b. Environmental : No major environmental impact.

c. Risk : Low

2. General Instructions:

a. Conduct the following student reading / familiarization will be completed prior toclassroom instruction: FM 5-250, pg 3-1 through 3-10, and pg 3-33.

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

3. Sequence of Activities:

a. Familiarization of demolitions/timber-cutting.

b. Six-step problem solving format.

c. Internal tamped formula.

d. External untamped formula.

e.. Ring Charge calculation

f. Calculation for Abatis

g. Stump removal

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

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Appendix D: Student Handout/Advance Sheet (Continued)


1. You are to cut 26 trees, each with a diameter of 42 inches. M112 (C-4) blocks will be used and thecharges will be placed externally and untamped. How many blocks of explosives will be required tocomplete the mission?

2. You are to cut 15 trees, each with a diameter of 38 inches. Dynamite will be used and the chargesplaced internally and tamped. How many 1/2-lb. sticks of dynamite will be required to complete themission?

3. You are to create an abatis with 135 trees. The trees have a diameter of 29 inches. The placement ofthe charges will be external and untamped. M112 (C-4) will be utilized. How many packages ofexplosives will be required to complete the mission?

4. You are to remove 42 live stumps, each having a diameter of 22 inches. How many 1/2-1b packagesof dynamite will be required to complete the mission?

5. You are to cut 9 trees each having a diameter of 27 inches. Using a ring charge of M112 (C-4) blocks,how many packages of explosives will be required to complete the mission?

A-01-DEMO

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