- Bogart, Charles H.
- Ship histories and stories, WWII operations
- RAN Ships
- HMAS Yarroma, HMAS Sea Mist, HMAS Kuttabul
- March 1985 edition of the Naval Historical Review (all rights reserved)
The Japanese submarine war in the Indian Ocean was soon to die. Events in the Pacific were forcing the Imperial Navy to draw their strength homeward as the Allies advance through the Pacific began to near the Home Islands. The last Japanese submarine to sink a ship in the Indian Ocean was RO113, which sank the British steamer Marion Moller off Ceylon on 5 November 1944.
In all during her career I27 sank 12 ships of 67,595 tons and damaged 3 ships of 21,281 tons. She thus ranks as among the most successful of the Japanese submarines.