The HMAT A1 Hymettus weighed 4,606 tons with an average cruise speed of 11.5 knots or 21.3 kmph. It was owned by the British India SN Co Ltd, London, and leased by the Commonwealth until 15 May 1917.
HMAT Hymettus (A1), in the Gulf of Suez. This transport carried over 500 horses of the 1st Australian Division from Australia to Egypt.