Hosts Brazil automatically qualified for the 2016 Summer Paralympics in Sonar by virtue of being hosts. Brazil has one boat competing in this class, and it is crewed by Tui Francisco Oliveira, Antonio Marcos Do Carmo, and José Matias Gonçalves De Abreu. It is currently ranked nineteenth in the world, but has been as high as eleventh.
What events these sailors have been competing at in the past three months can be difficult to track. Garda and Trentino Olympic Week, which took place earlier this month and had a sonar event, has no ISAF results published on their website. Trofeo Sar Princess Sofia did not have Sonar on their program. Oceanbridge Sail Auckland Regatta in New Zealand in March had this class on their program, but only New Zealand competitors took part.
The country was most active internationally in this event in 2013, when Brazilian sailors competed in 2013 IFDS Combined World Championships and 2013 ISAF Sailing World Cup Hyères.
Brazil has never medaled in this class at the Paralympic Games. They did not have a team competing in this event at the last Paralympic Games.