The following U.S. intelligence report originally appeared in Tactical and Technical Trends, No. 20, March 11, 1943. [DISCLAIMER: The following text is taken from the U.S. War Department publication Tactical and Technical Trends. As with all wartime intelligence information, data may be incomplete or inaccurate. No attempt has been made to update or correct the text. Any views or opinions expressed do not necessarily represent those of the website.]

NEW GERMAN 70-KILOGRAM BOMB It is reported that the Germans have developed a 70-kilogram (155-pound) HE bomb with a medium-thick casing. This bomb is intended to replace the SC* and SD** 50-kilogram (110-pound) general-purpose HE bombs. The wall-thickness of the new bomb is 10 mm (about 0.3 in), and the filling 21 kilograms (46 pounds) of TNT. The blast effect is reportedly as great as that of the SC 50-kilogram, and the fragmentation greater than that of the SD 50-kilogram. The fin assembly and external dimensions of the 70-kilogram being the same as the SC 50-kilogram, the same bomb rack can be used. * SC is the designation for the bomb with a thin casing, which achieves its effect chiefly by blast. ** SD is the designation for the bomb with a thick casing, which achieves its effect chiefly by fragmentation. The SD has greater penetrating power than the SC, and was designed for attack on modern reinforced concrete structures.

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