Classification

In this chapter, the bombs have been categorized according to the series in which they were developed. The fundamental characteristics of each series are as follwos:

Army "Modified Mark" Series: Streamlined and filled with 100% TNT. These are now obsolete.

Army "M" Series: Parallel sides, ogival nose, and boat tail; box type-tail assembly construction; and filled with 50/50 Amatol sealed at both ends with TNT surrounds. Some are now classified as obsolescent.

Navy "Mk" Series: Similar to design of Army bombs and filled with 100% TNT; discon-tinued, with some exceptions, under the standardization program.

Army-Navy "AN" Series: Similar to the "M" Series, except: (1) third suspension lug added at center of gravity and 180° removed from other two lugs, and (2) base plate changed to the male type.

Since the development of the "AN" series, there have been two further modifications of the general-purpose (G.P.) bombs within that series, successively the "AN-G.P." and "AN-G.P. A1" modifications. The changes characteristic of these two modifiactions are dealt with in the introdcution to Section 5.

Practice bombs: These dummy and special designs are of great variety and have probably received more attention with the advent of peace.