USNS Sands

Sands was laid down on 23 August 1962 by the Marietta Manufacturing Co. of Point Pleasant, West Virginia as hull number 911, the first of three such vessels built for the United States Navy by the builder.

[3][note 2] Until being placed out of service, in reserve, in April 1973, Sands performed oceanographic and marine geophysical research and conducted experiments in underwater sound propagation.

Kevlar, created by DuPont for use as cords in vehicular tires, was found to have stretch characteristics that matched those of the conductive copper wires embedded in an array.

Sands, during this period, also conducted acoustic data collection voyages in the area around Malta and the lower Adriatic Sea.

On 1 July 1974 the ship was leased by Brazil, renamed Almirante Camara, after a major supporter of Brazilian hydrography, Admiral Antônio Alves Câmara Junior, and placed in service under the command of Captain-de-frigate Fernando Carlos Catta Preta Baumeir.