Oerlikon 35mm Twin Cannon:

Oerlikon 35mm Twin Cannon:

Oerlikon 35mm Twin Cannon - Camouflaged

The Oerlikon 35 mm twin cannon is a towed anti-aircraft gun made by Oerlikon-Contraves. The system was originally designated as 2 ZLA/353 ML but this was later changed to GDF-001. It was developed in the late 1950s and is used by around 30 countries. The system uses 35 mm autocannons, which were originally designated 353 MK and are now designated as the KD series. The same KD series 35 mm cannons are used in the Leopard tank based Gepard and T-55 based Marksman self-propelled anti-aircraft guns. The system could be paired with the off-gun Super Fledermaus fire control radar, which in the late 1970s was upgraded to the Skyguard system.

In 1980 an upgraded model, the GDF-002 was produced, which featured an improved sight, and the ability to be directed by an off-gun digital control system. A few years later a third version of the system was being produced, the GDF-003, which was broadly similar to the GDF-002, but included some enhancements like self-lubricating weapons and integrated protective covers.

In 1985 a further upgraded model was produced, the GDF-005, which was introduced, featuring the Gunking 3D computer-controlled sight with an integrated laser range-finder and digital control system. The guns are usually transported by a 5-tonne 6×6 truck.

Pakistan operates 200 aging Oerlikon GDF-002 35mm AAA guns and an unknown quantity of the more modern GDF-005 version. Although both are potent against helicopters and low flying aircraft they are not fitted with the advanced AHEAD anti-missile rounds and do not present a credible defense against missile attack. These weapons are radar controlled with SkyGuard I fire control radars. Pakistan also recently procured at least 6 more SkyGuard radars although the exact version of these is unclear. Pakistan also has a number of Swedish Giraffe 75 mast mounted radars although it is not clear if these are integrated with the SkyGuard systems. (Pak Defence Forum)