It is a 2-barrel anti-aircraft cannon, 35 mm cal., produce by Oerlikon-Contraves, which can fight against air targets at low heights, as well as ground targets such as light armoured vehicles.

The gun can operate in 3 ways:

- normal mode - automatic cannon controlled by GSN/FCU;

- auxiliary mode – autonomous cannon controlled by the operator using a joystick and vision system;

- emergency mode – manual cannon controlled by the operator if absence of the main power supply.

The GDF-003 assembly is loaded on 2 auto trailers, the gun and the PSU (Power supply Unit) trailer with electric generators. Anti-aircraft gun 35 mm cal. “GDF 103 AA” is part of a battery level (Figure 1).

Fig. 1 35 mm battery architecture

The 35 mm battery consists of the Fire Control Unit (GSN/FCU) and two anti-aircraft guns “GDF 103 AA”. The guns and GSN are connected by power generators (Figure 2, 3).