What type of weapon is a GP bomb classified as?

A GP bomb, or General Purpose bomb, is classified as an unguided bomb designed to be dropped from an aircraft. These bombs are typically utilized for a variety of purposes, targeting enemy personnel and equipment with a high-explosive payload. The classification as "unguided" indicates that the bomb follows a ballistic trajectory without any guidance system to steer it towards a target, relying instead on the accuracy of the delivery aircraft.

In the context of military operation, a GP bomb can come in various sizes and weights, with the example provided being a 505 kg bomb. This emphasizes its role as a conventional explosive weapon rather than a specialized one, allowing it to be effectively employed in multiple scenarios, ranging from air superiority missions to ground-attack roles.

The other options represent different types of munitions with distinct characteristics. Guided missiles are equipped with guidance systems, high-altitude explosives may refer to munitions designed for detonation at altitude, and cluster bomb units release multiple smaller bombs over a designated area, which are all fundamentally different from the unguided nature of a GP bomb.