Question

There are two types of subcaliber practice bombs—the Mk 76 Mod 5 and what else?

Answer 1

The other type of subcaliber practice bomb, in addition to the Mk 76 Mod 5, is the implosion bomb. This bomb achieves critical mass by increasing the density of a sub-critical mass and consists of a sphere of fissile material surrounded by shaped explosives.

Step-by-step explanation:

The other type of subcaliber practice bomb, in addition to the Mk 76 Mod 5, is the implosion bomb. This type of bomb is designed to achieve a critical mass of fissile material by increasing the density of a sub-critical mass. It consists of a sphere of fissile material surrounded by shaped explosives that, when detonated simultaneously, compress the fissile material, allowing the chain reaction to occur.