How many additional blocks of M112 are used with HEAT compared to standard rockets?

The correct answer indicates that one additional block of M112 is used with High-Explosive Anti-Tank (HEAT) rockets compared to standard rockets. This distinction is important in understanding the differences in payload requirements for various types of ordnance.

The additional block of M112 is necessary because HEAT warheads typically require a greater amount of explosive material to achieve the desired velocity and penetration capability against armored targets. Standard rockets are designed for more general uses and do not necessitate the same level of explosive energy that is critical in creating the hollow charge effect common in HEAT bombs.

By using one additional block, the design ensures that the HEAT rockets can deliver the required performance effectively without unnecessary excess that might complicate the munition design or cause safety issues. This nuanced understanding reflects the specific tuning of munitions for their intended tactical roles.