The Oerlikon GAI-BO1 is a Swiss designed and built light

anti-aircraft gun Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...

which is mounted on a two-wheeled carriage with three folding

outrigger An outrigger is a projecting structure on a boat, with specific meaning depending on types of vessel. Outriggers may also refer to legs on a wheeled vehicle that are folded out when it needs stabilization, for example on a crane that lifts ...

s. Due to its light weight and ability to be broken down into small loads it can also be mounted on ships and vehicles.

Description

The GAI-BO1 consists of a KAB 20 × 128 mm auto-cannon mounted on a folding platform. The gun has no power assistance with elevation of the counter-balanced barrel controlled by a hand-wheel and traverse is by foot. Due to its lack of power assistance it is unable to engage fast moving aerial targets, although it is still useful for engaging light observation aircraft and helicopters. Three different sized magazines 8-round, 20-round and 50-rounds are available. There is a simple mechanical computing sight with 1x magnification for aerial targets and a 3.5x scope for engaging ground targets. In its ground role it can fire armor-piercing rounds capable of piercing of rolled homogeneous armor at .

References

External links

* http://www.pmulcahy.com/autocannons/swiss_autocannons.html * https://www.taringa.net/posts/imagenes/16750740/Canon-antiaereo-Oerlikon-GAI-BO1-20mm.html {{DEFAULTSORT:Oerlikon GAI-BO1 20 mm artillery Autocannon Oerlikon-Contraves