The Thales Groundmaster 200 is a mobile military radar system by Thales Raytheon Systems, the joint venture between Thales and Raytheon in France. The GM200 is an autonomous tactical radar solution for Air Surveillance and Control. It is small enough to be embedded in a standard 20-ft ISO shipping container, transported by air, fitted entirely on a tactical vehicle, and operational in a short time.
Hydraulic equipment from French supplier Quiri is used to lift and maintain the mast and radar antenna. There are three operator positions for deploying the radar when mounted on a truck. Each Ground Master 200 radar system has one Quiri double-acting cylinder to push it up from its stored position to the low position and two synchronized telescopic lifting cylinders that push it up to the high position.
Thales Raytheon Systems’ GM200 is a tactical Air Defense Radar that provides an accurate detection against targets from very low to high altitudes and from short to medium ranges, whatever the environment.
The double-acting cylinder for low position rotation has a 400-mm stroke and 120 kN compression force. The telescopic double-acting cylinders for lifting and deployment provide a total stroke of 3,500 mm and 30 kN compression force. A 5.5-kW embedded hydraulic power unit has a double-outlet pump that supplies the telescopic cylinders with equal flow for extension and retraction operating pressures from 40 to 160 bar.
The cylinders themselves have electroless-nickel plated piston coating and accumulators that can handle the extreme environments specified by the military, with working operating temperatures from −40° to 30°C.