What type of fuse does the RPG-7 use to ignite the warhead?

The RPG-7 uses a Point Initiated Fuse Detonation (PIFD) type of fuse to ignite the warhead. This type of fuse is designed to initiate an explosive reaction when a certain physical condition is met, typically involving the missile's impact or proximity to the target. In the case of the RPG-7, the PIFD ensures that the warhead is detonated upon hitting the target or when it reaches a specific range, thus maximizing the weapon's effectiveness against armored vehicles and other targets.

The selection of a PIFD allows for a reliable and quick reaction to impact or close proximity, which is essential for maintaining the lethality and effectiveness of the RPG-7 in combat situations. This design characteristic is what distinguishes it from other fuses, such as electronic fuses that rely on circuitry, safe and arm fuses that ensure the weapon is only armed under safe conditions, or time delay fuses which may activate after a set duration. The PIFD's straightforward mechanism integrates seamlessly into the RPG-7's operational profile, enhancing its usability on the battlefield.