Osorio MBT image - Tank Lovers Group

The Osorio main battle tank was developed during the mid-1980s by Engesa both for Brazilian Army and export customers. This MBT was developed as a private venture, with only little support from the government. The first prototype was completed in 1985, the second followed in 1986. Generally it was a successful design, however due to the lack of funding it was not accepted to service with the Brazilian Army. This MBT also received no production orders from export customers. Eventually the Osorio project was abandoned and Engesa went bankrupt. Currently Brazilian Army operates ageing M60 and Leopard 1 main battle tanks.

The Osorio tank is fitted with composite armor at the front of the hull and turret. This armor is broadly similar to the British Chobham. It includes steel, aluminum, carbon fibers and ceramics. Vehicle has automatic fire supression and NBC protection systems. It is considered that protection of this tank was inferior to most western MBTs of that time.