| SBe 250 | |
|---|---|
 | |
| Type | Fragmentation bomb |
| Place of origin |  |
| Service history | |
| Used by | Luftwaffe |
| Wars | World War II |
| Specifications | |
| Mass | 250 kg (550 lb) |
| Length | 1.63 m (5 ft 4 in) |
| Diameter | 14 in (36 cm) |
| Warhead | Ammonal |
| Warhead weight | 46 kg (101 lb) |
Detonation mechanism | TNT [1] |
The SBe 250 (Splitter Beton) or concrete fragmentation in English was a fragmentation bomb used by the Luftwaffe during World War II.
The SBe series of bombs were designed to be semi-armor piercing fragmentation bombs that could act as an adjunct to the SD series of bombs. There were two bombs in this series the SBe 50, and the SBe 250. The number in the bombs designation corresponded to the approximate weight of the bomb. The SBe series was an effort to balance low cost, good fragmentation, and effective explosives. The SBe series achieved its fragmentation by embedding scrap metal in a layer of concrete instead of having a thick steel casing like the SD series. This concept had already been used successfully on the SD 10 A Type II and the SD 10 DW. [2]
The body of the SBe 250 consisted of thin inner and outer steel cases with scrap metal embedded in a 51 mm (2 in) layer of concrete between the cases. The nose was formed from a 5 mm (3/16 in) steel dome and there was a single transverse fuze in the rear 1/3 of the bomb. There was also a central TNT exploder which ran through the ammonal explosive filler. The tail was sheet steel with four single braces and there was a removable trunnion band which was used to horizontally suspend the bomb. Due to its heavy construction its charge to weight ratio was only 18%. The bomb was painted blue green. [1]
A Butterfly Bomb was a German 2 kilogram anti-personnel submunition used by the Luftwaffe during the Second World War. It was so named because the thin cylindrical metal outer shell which hinged open when the bomblet deployed gave it the superficial appearance of a large butterfly. The design was very distinctive and easy to recognise. SD 2 bomblets were not dropped individually, but were packed into containers holding between 6 and 108 submunitions e.g. the AB 23 SD 2 and AB 250-3 submunition dispensers. The SD 2 submunitions were released after the container was released from the aircraft and had burst open. Because SD 2s were always dropped in groups the discovery of one unexploded SD 2 was a reliable indication that others had been dropped nearby. This bomb type was one of the first cluster bombs ever used in combat and it proved to be a highly effective weapon. The bomb containers that carried the SD 2 bomblets and released them in the air were nicknamed the "Devil's Eggs" by Luftwaffe air and ground crew.
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