Astros II vs M270 MLRS

The American M270 MLRS mounts standardized 227mm and ATACMS pods on a tracked Bradley-derivative chassis, while Brazil's Astros II utilizes commercial heavy truck chassis to deploy an array of rockets ranging from 127mm to 450mm. Produced in massive numbers (1,450 units) to counter Soviet massed artillery, the M270 became the standard NATO heavy rocket system. Avibras produced 270 Astros II units, capturing Middle Eastern and non-aligned markets prioritizing lower acquisition costs over heavy armor.

Development and Design

The U.S. Army initiated the M270 program in the 1970s to match Soviet rocket artillery densities. Lockheed Martin mounted the M269 launcher-loader on the tracked M993 carrier, yielding a self-contained 25.1-ton platform. Avibras developed the Astros II in the 1980s around a wheeled Tectran VBT-2028 (Mercedes-Benz 2028) 6×6 chassis. Unlike the self-contained M270, the Astros II dictates a sprawling battery footprint, requiring separate radar (AV-UCF) and command (AV-VCC) vehicles to coordinate the launchers. The modern Mk6 iteration migrated to Tatra 815-7 chassis and integrates Rheinmetall’s Fieldguard 3 measurement system.

Protection and Firepower

The M270 encases its three-man crew in a 7039 aluminum cab to withstand artillery fragments during counter-battery exchanges, with M270A1 and A2 upgrades adding heavier armor. Its integrated winch system manually loads two pods containing either 12 227mm GMLRS rockets or two ATACMS missiles. The Astros II uses light composite armor, leaving crews vulnerable to shrapnel, but trades this protection for caliber flexibility. Depending on the loaded pod, it fires:

• 127mm SS-30 rockets (32 tubes)
• 180mm SS-40G guided rockets (16 tubes)
• 300mm SS-80G guided rockets (4 tubes)
• 450mm SS-150 rockets or AV-TM 300 cruise missiles (Mk6 variant)

Mobility and Logistics

Tracked propulsion gives the M270 greater cross-country mobility in mud and snow, powered by a 500 hp Cummins V8. This imposes high fuel consumption and necessitates heavy equipment transporters for operational movement. The Astros II prioritizes strategic mobility and lower operating costs. Because it mounts on a commercial truck chassis, the launcher and its support vehicles self-deploy over highway networks and fit inside C-130 Hercules aircraft. The M270 requires larger C-17 or C-5 airlifters.

Deployment and Combat Record

Both systems debuted in combat during the 1991 Gulf War. U.S. and British M270s targeted Iraqi troop concentrations and SAM sites. In Ukraine, M270s engage Russian logistics and air defense assets with GMLRS, proving highly survivable due to tracked shoot-and-scoot capabilities. The Astros II saw use by both sides in 1991—by Saudi forces and as the Iraqi-licensed Sajeel-60. Angolan forces employed it against UNITA, and Saudi Arabia deployed the system during its intervention in Yemen.

Conclusion

The M270 is the superior system for peer-state mechanized warfare. Its armored cab provides necessary survivability against counter-battery fragments, and its tracked chassis keeps pace with armored columns in degraded terrain. The Astros II is the logical choice for expeditionary forces or militaries operating on limited budgets. Its C-130 transportability, commercial truck logistics, and ability to fire multiple rocket calibers from a single platform suit regional conflicts where rapid airborne deployment matters more than heavy armor.