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    U.S. Army Improvised Munitions Handbook
    U.S. Army Improvised Munitions Handbook
    U.S. Army Improvised Munitions Handbook
    Ebook569 pages2 hours

    U.S. Army Improvised Munitions Handbook

    By U.S. Department of the Army

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    About this ebook

    You don’t need to be a trained soldier to fully appreciate this edition of the U.S. Army Improvised Munitions Handbook (TM 31-210). Originally created for soldiers in guerilla warfare situations, this handbook demonstrates the techniques for constructing weapons that are highly effective in the most harrowing of circumstances. Straightforward and incredibly user-friendly, it provides insightful information and step-by-step instructions on how to assemble weapons and explosives from common and readily available materials. Over 600 illustrations complement elaborate explanations of how to improvise any number of munitions from easily accessible resources. Whether you’re a highly trained solider or simply a civilian looking to be prepared, the U.S. Army Improvised Munitions Handbook is an invaluable addition to your library.
    LanguageEnglish
    PublisherSkyhorse
    Release dateFeb 1, 2012
    ISBN9781510720565
    U.S. Army Improvised Munitions Handbook
    Author

    U.S. Department of the Army

    The  Department of the Army  (DA) is one of the three military departments within the  Department of Defense of the United States of America. Its mission is to fight and win our Nation’ s wars by providing prompt, sustained land dominance across the full range of military operations and spectrum of conflict in support of combatant commanders.

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    • 3/5
      A how to manual on making improvised weapons.

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    U.S. Army Improvised Munitions Handbook - U.S. Department of the Army

    Section I

    No. 1

    PLASTIC EXPLOSIVE FILLER

    A plastic explosive filler can be made from potassium chlorate and petroleum jelly. This explosive can be detonated with commercial #8 or any military blasting cap.

    MATERIAL REQUIRED

    Potassium chlorate

    Petroleum jelly (Vaseline)

    Piece of round stick

    Wide bowl or other container for mixing ingredients.

    HOW USED

    Medicine

    Manufacture of matches

    Medicine

    Lubricant

    PROCEDURE

    1. Spread potassium chlorate crystals thinly on a hard surface. Roll the round stick over crystals to crush into a very fine powder until it looks like face powder or wheat flour.

    2. Place 9 parts powdered potassium chlorate and 1 part petroleum jelly in a wide bowl or similar container. Mix ingredients with hands (knead) until a uniform paste is obtained.

    NOTE: Store explosive in a waterproof container until ready to use.

    Section I

    No. 2

    POTASSIUM NITRATE

    Potassium nitrate (saltpeter) can be extracted from many natural sources and can be used to make nitric acid, black powder and many pyrotechnics. The yield ranges from .1 to 10% by weight, depending on the fertility of the soil.

    MATERIALS

    Nitrate bearing earth or other material, about 3-1/2 gallons (13-1/2 liters)

    Fine wood ashes, about 1/2 cup (1/8 liter)

    Bucket or similar container, about 5 gallons (19 liters) in volume (Plastic, metal, or wood)

    2 pieces of finely woven cloth, each slightly larger than bottom of bucket

    Shallow pan or dish, at least as large as bottom of bucket

    Shallow heat resistant container (ceramic, metal, etc.)

    Water - 1-3/4 gallons (6-3/4 liters)

    Awl, knife, screwdriver, or other hole producing instrument

    Alcohol about 1 gallon (4 liters) (whiskey, rubbing alcohol, etc.)

    Heat source (fire, electric heater, etc.)

    Paper

    Tape

    SOURCE

    Soil containing old decayed vegetable or animal matter

    Old cellars and/or farm dirt floors

    Earth from old burial grounds

    Decayed stone or mortar building foundations

    Totally burned whitish wood ash powder

    Totally burned paper (black)

    NOTE: Only the ratios of the amounts of ingredients are important. Thus, for twice as much potassium nitrate, double quantities used.

    PROCEDURE:

    1. Punch holes in bottom of bucket. Spread one piece of cloth over holes inside of bucket.

    2. Place wood ashes on cloth and spread to make a layer about the thickness of the cloth. Place second piece of cloth on top of ashes.

    3. Place dirt in bucket.

    4. Place bucket over shallow container. Bucket may be supported on sticks if necessary.

    5. Boil water and pour it over earth in bucket a little at a time. Allow water to run through holes in bucket into shallow container. Be sure water goes through all of the earth. Allow drained liquid to cool and settle for 1 to 2 hours.

    NOTE: Do not pour all of the water at once, since this may cause stoppage.

    6. Carefully drain off liquid into heat resistant container. Discard any sludge remaining in bottom of the shallow container.

    7. Boil mixture over hot fire for at least 2 hours. Small grains of salt will begin to appear in the solution. Scoop these out as they form, using any type of improvised strainer (paper, etc.).

    8. When liquid has boiled down to approximately half its original volume, remove from fire and let sit. After half an hour add an equal volume of alcohol. When mixture is poured through paper, small white crystals will collect on top of it.

    9. To purify the potassium nitrate, re-desolve the dry crystals in the smallest possible amount of boiled water. Remove any salt crystals that appear (Step 7); pour through an improvised filter made of several pieces of paper and evaporate or gently heat the concentrated solution to dryness.

    10. Spread crystals on flat surface and allow to dry. The potassium nitrate crystals are now ready for use.

    Section I

    No. 3

    IMPROVISED BLACK POWDER

    Black powder can be prepared in a simple, safe manner. It may be used as blasting or gun powder.

    MATERIAL REQUIRED:

    Potassium nitrate, granulated, 3 cups (3/4 liter) (see Sect. I, No. 2)

    Wood charcoal, powdered, 2 cups (1/2 liter)

    Sulfur, powdered, 1/2 cup (1/8 liter)

    Alcohol, 5 pints (2-1/2 liters) (whiskey, rubbing alcohol, etc.)

    Water, 3 cups (3/4 liter)

    Heat source

    2 Buckets - each 2 gallon (7-1/2 liters) capacity, at least one of which is heat resistant (metal, ceramic, etc.)

    Flat window screening, at least 1 foot (30 cm) square

    Large wooden stick

    Cloth, at least 2 feet (60 cm) square

    NOTE: The above amounts will yield two pounds (900 grams) of black powder. However, only the ratios of the amounts of ingredients are important. Thus, for twice as much black powder, double all quantities used.

    PROCEDURE:

    1. Place alcohol in one of the buckets.

    2. Place potassium nitrate, charcoal, and sulfur in the heat resistant bucket. Add 1 cup water and mix thoroughly with wooden stick until all ingredients are dissolved.

    3. Add remaining water (2 cups) to mixture. Place bucket on heat source and stir until small bubbles begin to form.

    CAUTION: Do not boil mixture. Be sure all mixture stays wet. If any is dry, as on sides of pan, it may ignite.

    4. Remove bucket from heat and pour mixture into alcohol while stirring vigorously.

    5. Let alcohol mixture stand about 5 minutes. Strain mixture through cloth to obtain black powder. Discard liquid. Wrap cloth around black powder and squeexe to remove all excess liquid.

    6. Place screening over dry bucket. Place workable amount of damp powder on screen and granulate by rubbing solid through screen.

    NOTE: If granulated particles appear to stick together and change shape, recombine entire batch of powder and repeat steps 5 and 6.

    7. Spread granulated black powder on flat dry surface so that layer about 1/2 inch (1-1/4 cm) is formed. Allow to dry. Use radiator, or direct sunlight. This should be dried as soon as possible, preferably in one hour. The longer the drying period, the less effective the black powder.

    CAUTION: Remove from heat as soon as granules are dry. Black powder is now ready for use.

    Section I

    No. 4

    NITRIC ACID

    Nitric acid is used in the preparation of many explosives, incendiary mixtures, and acid delay timers. It may be prepared by distilling a mixture of potassium nitrate and concentrated sulfuric acid.

    MATERIAL REQUIRED:

    Potassium nitrate (2 parts by volume)

    Concentrated sulfuric acid (1 part by volume)

    2 bottles or ceramic jugs (narrow necks are preferable)

    Pot or frying pan

    Heat source (wood, coal, or charcoal)

    Tape (paper, electrical, masking, etc. but not cellophane)

    Paper or rags

    SOURCES:

    Drug Store

    Improvised (Section I, No. 2)

    Motor vehicle batteries

    Industrial plants

    IMPORTANT: If sulfuric acid is obtained from a motor vehicle battery, concentrate it by boiling it until white fumes appear. DO NOT INHALE FUMES.

    NOTE: The amount of nitric acid produced is the same as the amount of potassium nitrate. Thus, for 2 tablespoonsful of nitric acid, use 2 tablespoonsful of potassium nitrate and 1 tablespoonsful of concentrated sulfuric acid.

    PROCEDURE:

    1. Place dry potassium nitrate in bottle or jug. Add sulfuric acid. Do not fill bottle more than 1/4 full. Mix until paste is formed.

    CAUTION: Sulfuric acid will burn skin and destroy clothing. If any is spilled, wash it away with a large quantity of water. Fumes are also dangerous and should not be inhaled.

    2. Wrap paper or rags around necks of 2 bottles. Securely tape necks of bottles together. Be sure bottles are flush against each other and that there are no air spaces.

    3. Support bottles on rocks or cans so that empty bottle is slightly lower than bottle containing paste so that nitric acid that is formed in receiving bottle will not run into other bottle.

    4. Build fire in pot or frying pan.

    5. Gently heat bottle containing mixture by moving fire in and out. As red fumes begin to appear periodically pour cool water over empty receiving bottle. Nitric acid will begin to form in the receiving bottle.

    CAUTION: Do not overheat or wet bottle containing mixture or it may shatter. As an added precaution, place bottle to be heated in heat resistant container filled with sand or gravel. Heat this outer container to produce nitric acid.

    6. Continue the above process until no more red fumes are formed. If the nitric acid formed in the receiving bottle is not clear (cloudy) pour it into cleaned bottle and repeat Steps 2 - 6.

    CAUTION: Nitric acid will burn skin and destroy clothing. If any is spilled, wash it away with a large quantity of water. Fumes are also dangerous and should not be inhaled.

    Nitric acid should be kept away from all combustibles and should be kept in a sealed ceramic or glass container.

    Section I

    No. 5

    INITIATOR FOR DUST EXPLOSIONS

    An initiator which will initiate common material to produce dust explosions can be rapidly and easily constructed. This type of charge is ideal for the destruction of enclosed areas such as rooms or buildings.

    MATERIAL REQUIRED:

    A flat can, 3 in. (8 cm) diameter and 1-1/2 in. (3-3/4 cm) high. A 6-1/2 ounce Tuna can serves the purpose quite well.

    Blasting cap

    Explosive

    Aluminum (may be wire, cut sheet, flattened can or powder

    Large nail, 4 in. (10 cm) long

    Wooden rod - 1/4 in. (6 mm) diameter

    Flour, gasoline and powder or chipped aluminum

    NOTE: Plastic explosives (Comp. C-4, etc.) produce better explosions than cast explosives (Comp. B, etc.).

    PROCEDURE:

    1. Using the nail, press a hole through the side of the Tuna can 3/8 to 1/2 inch (1 to 1-1/2 cm) from the bottom. Using a rotating and lever action, enlarge the hole until it will accommodate the blasting cap.

    2. Place the wooden rod in the hole and position the end of the rod at the center of the can.

    3. Press explosive into the can, being sure to surround the rod, until it is 3/4 inch (2 cm) from top of the can. Carefully remove the wooden rod.

    4. Place the aluminum metal on top of the explosive.

    5. Just before use, insert the blasting cap into the cavity made by the rod. The initiator is now ready for use.

    NOTE: If it is desired to carry the initiator some distance, cardboard may be pressed on top of the aluminum to insure against loss of material.

    HOW TO USE:

    This particular unit works quite well to initiate charges of five pounds of flour, 1/2 gallon (1-2/3 liters) of gasoline or two pounds of flake painters aluminum. The solid materials may merely be contained in sacks or cardboard cartons. The gasoline may be placed in plastic-coated paper milk cartons, plastic or glass bottles. The charges are placed directly on top of the initiator and the blasting cap is actuated electrically or by fuse depending on the type of cap employed. This will destroy a 2, 000 cubic feet enclosure (building 10 × 20 × 10 feet).

    NOTE: For larger enclosures, use proportionately larger initiators and charges.

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