15.5 cm fortress cannon 93 L52 BISON
| 15.5 cm fortress cannon 93 L52 BISON | |
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| General Information | |
| Military designation: | 15.5 cm fortress cannon 93 L52 BISON |
| Manufacturer country: |
 Switzerland
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| Developer / Manufacturer: | KW Thun (today RUAG ) |
| Development year: | 1986 |
| Production time: | 1993 to 2000 |
| Number of pieces: | 16 |
| Weapon Category: | Fortress cannon |
| Technical specifications | |
| Pipe length: | 8.06 m |
| Caliber : |
155 mm |
| Caliber length : | L / 52 |
| Number of trains : | 60 |
| Twist : | constant right twist |
| Elevation range: | 3 ° -51 degrees |
| Side straightening area: | 36 |
| Turning speed: | 2.8 ° / s |
| Increase speed: | 2.8 ° / s |
| Furnishing | |
| Closure Type : | Screw lock |
| Charging principle: | semi-automatic |
| Ammunition supply: | semi-automatic |
The 15.5 cm fortress cannon 93 L52 BISON was the last gun of the Swiss fortress artillery .
The system was developed by the Federal Construction Workshop and put into service in 1993. It consisted of two monoblock bunkers per position, each with two hydraulically loaded, water-cooled guns (barrel length 52 caliber, i.e. 8060 mm) and fired the same ammunition as the M109 self-propelled howitzer , namely steel grenades, incendiary grenades, canister projectiles and self-targeting, intelligent anti-tank ammunition ( SMArt 155 ). The Halsegg artillery plant served as a bunker prototype .
The fire could be shot in the form of five rounds in 25 seconds. A BISON position could fire 20 grenades within 25 seconds. The range was over 30 kilometers.
Due to the end of the Cold War and the threat posed by new reconnaissance equipment and precise, bunker-breaking distance weapons , only four of the originally planned 23 positions were built. The last shot from a BISON was fired in 2011. On February 14, 2018, the Swiss Federal Council decided to propose to parliament that the guns be scrapped.
literature
- Regl 55.720 d 15.5 cm fortress cannon 93 L52 BISON.
Web links
Individual evidence
- ↑ Pierre-François Stoercklé: Rétrospective de la Session d'autonme 1998. In: SOGAFLASH, 1999, page 23.
- ↑ Heinz Nüssle: Switzerland without a combat infrastructure. In: Allgemeine Schweizerische Militärzeitschrift , 10/2011, pages 20–22.
- ↑ Markus Häfliger: "The Beast" is to be scrapped. Tages-Anzeiger from February 15, 2018