# # # # # # ## ## # ### ## ## ## ### # ### ### ##### ### #### #####################18-Dec-93### A N E X P L O S I V E S ######%%%%%%###################### #####%%##%%%###################### T U T O R I A L F I L E ######%%%%%%###%%%###%%%###%%#%#### #### #%##%%%#%%##%#%%##%#%%#%#%#### B Y o l e B U Z Z A R D ### # %##%%%#%%##%#%%##%#%%#%#%### ### %%%%%%###%%%###%%%##%%###%## F I L E N U M B E R 01 ################################### ^^ ## ### ### ### #### ### #### ##### # # ## # ## # ### # ## # # ## # # INTRODUCTION I wrote this file after seeing an episode of America's Most Wanted in which they were looking for a guy who plants bombs that look like a child's prank. This guy makes a bomb that looks like a couple of 2x4s glued together, one on top of the other, with the top 2x4 protruding nails from it. It looks very much like a nasty prank to pop the tires of cars that run over it. Its made to lure people into picking it up and moving it. If the device is titlted when it is picked up or moved it explodes. This file is one possible configuration of this bombs. It explains in detail how it works and discusses how it is made. * IMPORTANT * This is for Informational Purposes Only! I am not a Class A Explosives Expert and not qualified to write explosive instructionals. No attempt should be made to construct the device discussed in this file. BASIC OPERATION Basically the bomb works like this. It appears to be some sort of child's prank created to puncture tire. In fact it is only made to look like that so that it will be picked up. Diagram 1. Booby Trap Bomb ; / | , \ , <- Nails |---------| <- Concealing Piece of Wood 8" |---------| <- Caulking In Between 2x4s (with nails) |---------| <- 2x4 Containing bomb 12" While flat on the ground (like this __) the device is harmless, but when picked up and tilted toward vertical (like this / or this |) a MERCURY SWITCH (or like concept contact switch) makes an electrical contact and a 9 VOLT BATTERY ignites a ROCKET IGNITOR, which detonates a PIPE BOMB and BOOM! BASIC CONSTRUCTION Diagram 2. Wiring Diagram Rocket Ignitor (revealed diagram) /-|----------------------------|-\ / | ||| ||| |,/----------------------------| | ||| ||| |`\---| | \-|----------------------------|-/ | | / |--------| |------------|| Mercury Pipe Bomb + - |--|/ Switch ------ |::| | 9 | \xx/ |Volt| | | \ ------ 9 Volt Battery NOTES ON DIAGRAM 2. There are five primary components to this diagram 1. Pipe Bomb. 2. Rocket Ignitor 3. Mercury Switch 4. 9 Volt Battery 5. Electrical Wiring PIPE BOMB. The Pipe Bomb consists of a 4 to 8 in length of lead plumbing pipe, threaded on either end. On one end of the pipe, a fitted block cap is screwed on. The pipe is then filled to capacity with Pyrodex or other brand FFFF Grade gun powder. Next a modified cap (more on this in Ignitor section) is VERY CAREFULLY screwed on, so as not to accidentally ignite any gun powder that may have found its way into the threads. ROCKET ENGINE IGNITOR. The Rocket Ignitor, in its simplest form is an Estes Rocket, D Engine or better rocket engine ignitor. This ignitor is fitted into a drilled pipe end cap. It is fitted in such a way that 1. the ignition end of the ignitor is well within contact of the gun powder when the cap is screwed onto the iron pipe and 2. the electrical lead end of the ignitor sticks stick out sufficiently enough so that they may be TWIST CONNECTED to the positive and negative electrical runs. *IMPORTANT* The ignitors leads MUST BE PROPERLY INSULATED AGAINST ACCIDENTAL CONTACT. This can be achieved by dipping the lead end of the ignitor into Rubber Kote or some other brand of OSHA approved insulating coating liquid. Only enough lead of the ignitor should be exposed to make a twist connection to the positive and negative wiring, and once these twist connections are made they MUST be wrapped with electrical tape. Diagram 2a. Rocket Engine Ignitor Ignition Compund ____ \ / # \____ \ 1 of 2 Electrical Leads MERCURY SWITCH. The switch is what will be triggered when the position of the bomb switches from horizontal to vertical. The switches placement in the wood is VERY important. Because the diagram maybe somewhat deceiving, I will clarify. The switch is to be vertical when placed in the hole drilled in the 2x4 (See Diagram 3.). In its vertical position, with the bomb flat on the ground the mercury will be at the bottom of the switch bulb, out of contact from the mercury. When the bomb is tilted to a position of near vertical or vertical, the switch will then be in a horizontal position thereby bringing the mercury in the bulb into contact with the internal switch leads which then results in an electrical contact being made. More on switch placement in the Routing Diagram section. 9 VOLT BATTERY. The positive and negative leads coming from the positive and negative posts should be presoldered before ANY connections are made. The wires should be a color corresponding to the positive and negative runs (i.e. black and red). WIRING. All wiring of bomb, expect for the pre-soldering of the 9 Volt should be done AFTER placement into Routed 2x4. Once all components have been placed into 2x4 a RED wire should run from the positive of the 9-Volt to one of the ignitor leads, twist tied (not soldered) and insulated with electrical tape. Next a length of BLACK wire should be twist tied and insulated to the other lead of the ignitor. ONLY AFTER the Mercury Switch is properly inserted VERTICALLY into the 2x4 should you run the negative (BLACK) length of wire from the ignitor to one lead of the switch. Another length of BLACK wire should run from the other lead of the switch to the negative lead of the battery. ** NOTE * AT THIS POINT THE BOMB IS ACTIVATED!!! ** Diagram 3. Overhead view of Routed 2x4 ----------------------------------------------------------- | | 4 | |-----------------------------| |--------------------| | | | | | |---| |-----| | | I | | Bomb Goes Here ---| | |9 Volt| | | | n | | -----| |Goes | | | | c | | | |Here | / \ | h | |-----------------------------| |------| \___/ | e | \ | s ----------------------------------------------------------\ This a hole [------------------------ 12 Inches ------------------------] drilled VERTICALLY about .5" deep. NOTES ON DIAGRAM 3. Most routing is done either with a router or a chisel. Routing should as closely as possible approximate the dimensions of the components to be fitted with in the routed out area. * NOTE * The hole shown in this routing diagram is where the Mercury Switch should be inserted. This is a hole drilled into the 2x4 about .5" deep. As well, the diameter of the hole would as closely as possible approximate the diameter if the switch. NO LEEWAY SHOULD BE TOLERATED. Diagram 4. Side view of concealing 2x4 | /| | | | | | | / | | \ | | | \ | | |-----------------------------------------------------------| | | | | | | |-----------------------------------------------------------| NOTES ON DIAGRAM 4. This length of 2x4 goes nails up, ON TOP of the routed piece of 2x4 in which the bomb is placed. This piece of wood should be attached to the routed piece of wood with Liquid Nails, or some other brand of caulk adhesive. FINAL CONSTRUCTION OVERVIEW This is a brief recap of what was already discussed and a few more final construction notes. It is assumed that all pre-work (i.e. routing, wire cutting/stripping, pipe bomb construction etc.) has been completed. 1. Place all components of bomb into their routed positions in base 2x4. (See Diagram 3.) 2. Make electrical connections as decscribed in Electrical Wiring description of Diagram 2 section. ** IMPORTANT!!! ** From this point forward the bomb is activated and must be handled carefully! BOMB MUST BE KEPT HORIZONTAL!!! IF TILTED DEVICE WILL DETONATE!!! 3. Generously apply caulk to base 2x4 and then place decoy 2x4 (the one with nails protruding) on top. Bomb is now complete and can be placed in street, parking lot, driveway, or wherever it is likely to be moved by human hands. 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