The Tunisien was an American-built French Senegalais Class frigate of 1300 tons displacement launched in 1943. The Algerien was powered by diesel-electric engines providing a top speed of 19 knots and a range of 18400 km at 11 knots. She carried a complement of 185 and was armed with three 3 inch dual-purpose guns; two 40 mm Bofors anti-aircraft gu...