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111 SPECIAL, FORCES HANDBOOK

(1) A standard electric firing system lib<it for continuous and Immediate control over initiating the char go. A standard nonelectric system may also be aaed and timed to Insure that the charge explodes Just in front of the train: how-aver, both these systems require the presence of an agent at the scene of operations.

I Pound Explosive

Figure 4

TTr»» clkarfM.-i^gr every filth Ua. 2 Iba «el charpa.

tally ud um« cownunf ineuuiauar.: Otffietlf *» Oaiact one* in piac».

10-3-1 Derailment Svawte.

Figure

I Pound Explosive

(2) All the military booty-trap firing devices can be used to Initiate the charge through the movement of the oncoming train. Home made firing davlcee employing the mechanical principles of the military issue booby-traps cas t* employed. An electrical blasting cap system may be activated with a flashlight battery used as a simple, fleld-lmprovisedaw;tchtiut :s closed by the movement of the train- In all caaes the firing system is set up to Initiate the charge Trimmed lately in front of the oncoming locomotlre, not under the locomotive. Eighty pound or leaa rail (5 inches or leas In height) takes 1/2 pound to cut. Oer 80 pound rail (over 5 inches in height) takes 1 pound to cut.

Figure 4

Figure S IH-B

TTr»» clkarfM.-i^gr every filth Ua. 2 Iba «el charpa.

tally ud um« cownunf ineuuiauar.: Otffietlf *» Oaiact one* in piac».

10-3-1 Derailment Svawte.

!«■ eiutpi n*wr mn ijww a*. I IU imi cftrp. S.W«( Ami qveily • MUlled: but «••lly A«UeUd «ae« w pUca

Figure 3

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