Astros II (Artillery Saturation Rocket System) is a self-propelled multiple rocket launcher produced in Brazil by the Avibras company. It features modular design and employs rockets with calibers ranging from 127 to 450 mm (5–17.72 inches). It was developed on the basis of a Tectran VBT-2028 6×6 all-terrain vehicle for enhanced mobility based on Mercedes-Benz 2028 truck chassis while later versions use Tatra 817 chassis. Overview A full Astros system includes 1 wheeled 4×4 Battalion level Command Vehicle (AV-VCC), which commands 3 batteries, and a series of 4x4 and 6×6 wheeled vehicles. Each battery consists of: 1 wheeled 4×4 Battery-level Command vehicle (AV-PCC) 1 wheeled 6×6 Radar Fire Control vehicle (AV-UCF) 6 wheeled 6×6 Universal Multiple Rocket Launchers vehicle (AV-LMU) 6 wheeled 6×6 Ammunition Resupply vehicles (AV-RMD) 1 wheeled 6×6 Field repair/workshop vehicle (AV-OFVE) 1 wheeled 4×4 Mobile Weather Station vehicle (AV-MET). In the older version of the system, the fire control vehicle were listed as optional vehicle in a battery. The command vehicles and weather stations are recent additions, designed to improve overall system performance on newer versions. All vehicles are transportable in a C-130 Hercules. The launcher is capable of firing rockets of different calibers armed with a range of warheads. Each rocket resupply truck carries up to two complete reloads. Service history The Astros II artillery system entered service with the Brazilian Army in 1983. The system is battle proven, having been used in action by the Iraqi Army in the Gulf Wars. In the 1980s, Avibrás sold an estimated 66 Astros II artillery systems to Iraq. Iraq also built the Sajeel-60 which is a license-built version of the Brazilian SS-60. Sixty Astros II were sold to Saudi Arabia and an unspecified number sold to Bahrain and Qatar. Total sales of the Astros II between 1982 and 1987 reached US$1 billion. This fact made the Astros II multiple rocket launcher the most profitable weapon produced by Avibrás. In the 1980s and early 1990s, Avibrás manufactured almost exclusively rockets and multiple-launch rocket systems (MLRS), such as the Astros II, in addition to developing antitank and antiship missiles. At its peak, Avibrás employed 6,000 people; later it would be reduced to 900 people in the early 1990s as the arms industry demand fell. Even so, in the first Gulf War in 1991, the Astros II was successfully used by Saudi Arabia against Iraq. Years earlier, the Astros II system