Soviet and Russian aerial bombs
The name of the bomb consists of the type of bomb (FAB-250M-46), its caliber in kilograms (FAB-250M-46), model by year of adoption (FAB-250M-46 - model 1946) and additionally (not always) an indication of its mass - if it differs significantly from the caliber (OFAB-250-270, FAB-1500-2600TS) and/or the design feature of the bomb or its production technology (FAB-500T - heat-resistant (термостойкая; termostoykaya), FAB-1500-2600TS - thick-walled (толстостенная; tolstostennaya), FAB-100sch - steel cast iron (сталистый чугун; stalistyy chugun), FAB-1000sl - steel casting (стальное литьё; stal'noye lit'yo), or for commercial purposes (KAB-500S-E - export).
[1] Main destructive forces: Primary targets: Modern general-purpose FABs weigh 250 kg or more.
They can have several forms:[1] OFAB - a high-explosive fragmentation bomb is a regular high-explosive bomb, but with a lower explosive filling of about 30-35%, and special means of organized crushing of the body, such as a sawtooth inner side of the body or a system of longitudinal and transverse grooves (although on outdated models they might not have been installed).
Large-caliber bombs usually have a non-contact (hydroacoustic, barometric, remote, or more often combined) fuse, and hit the target with a high-explosive effect (hydrodynamic shock) at a distance.
After the time required for the formation of a cloud of sufficient size, the secondary detonating explosive charge ignites the air-fuel mixture.
Some RBKs are equipped with a removable fairing, which allows the RBC to be effectively installed on aircraft with both an external sling and an internal weapons bay.
Based on the method of dispersing combat elements, RBKs are divided into two types: KMGU - Unified Container for Small-sized Load.
Structurally, the KMGU is a streamlined body with controlled flaps, compartments for suspending the BKF and automation that allows you to adjust the block release interval.
Old aerial bombs have a cylindrical body with a rigid stabilizer that provides irregular crushing; modern bombs have a spherical or hemispherical design, a folding stabilizer, aerodynamic devices, notches for organized crushing of the body, or ready-made striking elements.
