Special Forms of Shaped Charges

Some special forms of shaped charges are shown in Fig 4, reproduced from Ref 66, p 5-33 and the penetration of steel by a shaped charge is shown in Fig 5, reproduced from p 5-34 of Ref 66 

The above description of Munroe-Neumann effect and of lined cavity effect must be considered as an introduction to the subject and some of the material may be obsolete. The description cannot be brought up-to-date because nearly all American and British military information of the last decade is classified 

In conclusion we are including here a few words about Defense Against Lined Shaped Charges , as given in Ref 51, p 342  

There are two types passive and active. Armor is considered passive defense, but spiked armor of the type tried out not too successfully in both WWI WWII may be considered as an active defense this is because the spikes were supposed to attack the attacking round before it reached the main body of the armor. Particular details of proposed arrangements for both active and passive defenses are classified 

Refs 1) M. vonFoerster, Versuche mit Comprimierter Schiessbaumwolle (Investigations with Guncotton), Mittler u Sohn, Berlin (1883) la) C.E. Munroe, Scribner s Mag 3, 563(1888) and AmerJSci (Silliman) 

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