German Hollow Shaped Charges

Holmgrens An explosive used in Sweden between 1903 and 1906 for filling shells and claimed to be more suitable for that purpose than PA. No composition is given Ref D.H. Hone, SS 1, 109 (1906) 

Holocellulose Cellulosic material obtainable from wood after removal of lignin. The term therefore means total carbohydrates (cellulose and hemicellulose) present in the wood (Refs 1 2) Ritter (Ref 3) succeded in isolating holocellulose from wood pulp by repeated chlori-nations, followed by extraction with alcohol containing 3% of monoethanolamine. The resulting product was white but changed color on standing 

Holtex. See Ref 7 thru Ref 11, pp C396-L to C397-L and Addnl Ref K, pp C402-R to C403-L in Vol 3 of Encycl 

A semiactive homing guidance system is one wherein the receiver in the missile receives 

A modified version of this semiactive technique has the transmitter located in the missile and the receiver of the reflected energy at some remote point. Computation of the desired flight path takes place at a remote point and suitable commands are sent to the missile. This system is known as a quasi-active homing guidance system 

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Refs 10 11). Lodati, in 1932 (Ref 12) investigated shaped TNT charges in Italy. Stettbacher in 1935 (Ref 13) proposed applying the idea to military ammunition, especially in mines. The Germans were apparently the first to use hollow-shaped ammunition, when they introduced it during the Spanish Civil War of 1936 (Ref 26, p 55)... 

German Hollow Charges (Hohlladungen) or Shaped Charges. See PATR 2510(1958), pp Ger 91-L to Ger 93-L (Illustrated)... 

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