Boat Designs Ltd; Ailsa Shipbuilding Co. Ltd., Scott & Sons, Bowling; Lamont & Co. Ltd. and Vera Cruz and Salina Cruz Shipyards for the Mexican Navy from 1976 to 1980.

They are multi-role patrol craft with good nautical characteristics.

The Azteca-class patrol vessels displace 148 long tons (150 t) at full load and are 111 feet 10 inches (34.1 m) long overall and 101 feet 4 inches (30.9 m) between perpendiculars.

The ships are propelled by two shafts driven by two Ruston Paxman Ventura diesels creating 3,600 brake horsepower (2,700 kW).

This gives the vessels a maximum speed of 24 knots (44 km/h; 28 mph) and a range of 2,400 nautical miles (4,400 km; 2,800 mi) at 12 knots (22 km/h; 14 mph).