?A little info on Russian Fab-500 ordnance power:
In total, bombs of about 500KG carry about 200KG of explosive, type
?-5?.
The efficiency of this type of explosive is 1.3 compared to TNT, so the equivalent is about 300kg.
Air shock wave impact zones in a ground explosion:
- radius of 100% lethal impact zone: 10.8 m (hereinafter - from the epicentre of the explosion).
- radius of the threshold kill zone: 38.2 m (slight contusion).
- Radius of the zone of minimal human exposure: 152.1 m (tinnitus).
- radius of the zone of total destruction: 21.9 m (collapse of all elements of buildings and structures, including basements).
- radius of severe destruction zone: 30.3 m (destruction of 50% of walls, floors, formation of cracks).
- radius of medium destruction zone: 43.6 m (damage to roofs, partitions and infills).
- radius of the weak damage zone: 68.6 m (weakening of load-bearing structures).
- Radius of 100% glazing damage zone: 115.4 m.
- radius of the glazing damage zone: 342,5 ?.
Characteristics of the fragmentation field:
- maximum number of hazardous fragments: 81750 pieces (with ideal hull crushing).
- average mass of a fragment dangerous for a person: 2 grammes.
- initial velocity of fragments: 1127.3 m/s.
- max. relative killing effect of a fragment (mass 2 g): 0.9 (killing effect of a 9x18 mm PM bullet = 1).
- max. relative stopping power of a fragment (2 g mass): 2.8 (9x18 mm PM = 1).
- max. fragmentation range: 1470 metres.
- radius of continuous fragmentation zone (70% probability*): 100,2 ?.
- radius of effective fragmentation zone (50% probability*): 118,5 ?.
- radius of the zone of possible fragmentation damage (20% probability*): 187,4 ?.
- radius of unlikely fragmentation damage zone (probability of 1%*): 838,2 ?.
* - minimum percentage of people who will be hit by at least one fragment at the boundary of this impact zone.
In practice, when a bomb is detonated in an open area, the kill characteristics will be lower than calculated. In a confined space, the explosion is about 1.5 times more destructive, due to ricochets of fragments and overlapping of air shock waves reflected from the walls.
