The ship, registered at 6,737gross register tons(GRT), was 451feet 9inches (137.69m) in length, 66feet 2inches (20.17m)abeam, and drew, 28feet 9inches (8.76m). She had three decks and could accommodate a crew of 10 officers and 35 men.[1] To move her at her reported top speed of 16.5 knots (30.6km/h),[3]Express was equipped with two steam turbines, both also built by Bethlehem Shipbuilding.[2] At some point near when the United States entered World War II in December 1941, the ship was armed with one 5-inch (130mm)deck gun and four machine guns and carried a complement of ten Naval Armed Guardsmen to man them.[1]
I-10, pictured here in April 1942, sank Express on 30 June 1942.
On 18 June 1942, Express sailed from Bombay, India, for Cape Town, South Africa, with a cargo of manganese ore, jute, leather, and other goods. At 00:30 on 30 June, while navigating almost due south on a zig-zag course near position 23°30′S37°30′E / 23.500°S 37.500°E / -23.500; 37.500, a star shell fired by I-10 illuminated the sky at almost the same time that two torpedoes from the same submarine hit their mark on Express. The first torpedo struck the cargo ship at waterline on the starboard side near the no. 7 hatch. The second torpedo, which hit five seconds after the first, hit at the no. 5 hatch. The explosions blew off the hatch covers, knocked out the guns, and destroyed the radio, preventing a distress call. The ship began sinking by the stern almost immediately, and the officers, crew, and Naval Armed Guard detachment took to the lifeboats. Because Express was still underway even while sinking, two of the three boats launched were swamped; the thirteen men aboard the no. 1 boat, one of the pair swamped, all drowned. The no. 2 boat, with 41 men aboard, made landfall on the coast of Mozambique six days after the sinking. Another crewman—who had originally been on a life raft, but moved to a water-filled lifeboat—was rescued by a Dutch tanker and landed at Cape Town.[1]