Takao Maru's registered length was 355.6 ft (108.4 m), her beam was 48.5 ft (14.8 m), her depth was 32.5 ft (9.9 m) and her draft was 28 ft 3+3⁄4 in (8.6 m). Her tonnages were 4,282 GRT and 2,517 NRT.[1] She had berths for 70 passengers: six in first class, and 64 in third class.[2]
Takao Maru had a single screw, driven by two Mitsubishisteam turbines via double-reduction gearing. Their combined power output was rated at 782 NHP[1] or 3,915 shp, and gave her a speed of 16.3 knots (30 km/h).[3] She was designed as a high-speed banana ship, and had an advanced mechanical ventilation system to cool her cargo holds.[2]
The Yokohama Dock Company built a sister ship, Koshun Maru, which was also completed in May 1927.[4]
At 16:30 hrs 7 October 1941 the Japanese Army requisitoned Takao Maru. She was converted into a troopship and given the Army number 638. On 7 December, the eve of the Japanese invasion of the Philippines, she left Mako in the Pescadores islands (now Magong in Penghu) as one of six troopships with the Third Fleet. She carried 2,000 troops of the 48th Division to take part in an amphibious assault on the island of Luzon.[2]
On 5 March 1942 Filipino guerillas attached the beached Takao Maru, putting her beyond repair. On 30 September she was officially declared a total loss.[2]
The Joint Army-Navy Assessment Committee (1947). Japanese Naval and Merchant Shipping Losses During World War II by All Causes. Washington, DC: US Government Printing Office. p. 29. ISBN978-1288590506.