The small fishing vessel MV Krait holds a special place in Australian maritime and military history. Named after a small, deadly snake, it played an important part in Operation Jaywick, which saw commandoes sink several Japanese ships anchored in Singapore Harbour in September 1943.
The MV Krait started life as a Japanese fishing vessel named the Kofuku Maru, which was launched in 1934. She was a motorised gaff-rigged ketch measuring 20 metres in length, with a two-metre draft and a displacement of 23 tonnes. At the outbreak of the Second World War, the Kofuku Maru was owned by a Japanese fishing company based in Singapore. They used the vessel to ferry water, food, and other supplies to fishermen working in the Riau Archipelago and to bring their catch back to the city’s seafood markets.
When Japan entered the war, the British authorities seized the Kofuku Maru. As Japanese troops advanced down the Malay Peninsula, an Australian merchant mariner, Bill Reynolds, used the fishing boat to evacuate over 1000 civilians to Sumatra in the Dutch East Indies (present-day Indonesia).
Then, in January 1942, when it was clear that Singapore was about to fall, Reynolds sailed the Kofuku Maru to Colombo in Ceylon (present-day Sri Lanka). There, some officers from the Allied Intelligence Bureau saw the potential of having a Japanese fishing vessel at their disposal. With any luck, they thought, the Kofuku Maru might be able to traverse enemy waters without raising suspicion. Reynolds had likely told them that Japanese aircraft had ignored the vessel while he had been operating around Singapore. The Kofuku Maru was then sent to Australia, where she was made ready to begin her clandestine career.
The Krait, though still going by its Japanese name, Kofuku Maru, was chosen to take part in Operation Jaywick, an audacious mission to destroy enemy shipping moored in Singapore Harbour. It was a high-risk, high-reward mission, but with any luck, the Japanese would not suspect the Krait of being anything other than one of the numerous small Japanese fishing vessels plying the waters around Malaya and Indonesia.
A 14-man team was selected for the operation under the command of Major Ivan Lyons, a British Army officer attached to the Z Special Unit, better known simply as Z Force. The men chosen were a mix of British and Australian Army and Navy personnel. After completing specialised training and rehearsals at Refuge Bay north of Sydney, the Krait then made the long voyage up the east coast, through Torres Strait, past Darwin and down the Western Australia coast to Exmouth Gulf.
The 7500 km long passage was not without problems. The engine quit while they were off Fraser Island, and the Krait had to be towed to Townsville, where she remained until a replacement could be found and installed. More repairs had to be made before they finally reached Exmouth Gulf, further delaying the operation.
But on 2 September 1943, the Krait left Exmouth Gulf with the Z Special Unit men on board. The plan called for the eight-man naval contingent to sail the vessel to within striking distance of Singapore Harbour. Then six Army commandos would take to three folding kayaks, paddle into the harbour, and sink as much Japanese shipping as they could by attaching magnetic “limpet” mines to their hulls below the waterline.
Four days after leaving Exmouth, the Krait motored through the narrow Lombok Strait with a Japanese ensign flying from her mast. Once clear of the strait, they bore west through the Java Sea towards their intended target. The men had stained their skin so they resembled local fishermen and were meticulous about what rubbish they threw overboard.
Towards the end of September, the Krait had made it to the small island of Pulau Panjang, just 30 km away from Singapore Harbour. The six commandos then set off in their two-man kayaks and island-hopped north to a small island where they could observe the entrance to the harbour. Meanwhile, the Krait made for safer waters near Borneo but not before agreeing on a rendezvous point with the commandos for the night of 2 October.
On 26 September, the six men paddled into the harbour and planted their mines on seven Japanese ships. Singapore’s early morning quiet was shattered by a series of loud explosions as the mines went off. One failed to detonate, but six ships were sunk or badly damaged. But by then, the commandos were long gone and were holed up on a small island to await the return of the Krait.
The Japanese did not realise that the attack had come from the sea, thinking instead that it was the work of local saboteurs. Several local Chinese and Malays, along with some prisoners of war and European civilian internees, were suspected of the bombings. They were rounded up by the Japanese Military Police and interrogated. Most were tortured, and some were executed in the aftermath, an unfortunate and unforeseen consequence of the raid.
Meanwhile, the commandos rendezvoused with the Krait as planned without incident. The Krait then set off for home. Two and a half weeks later, they were safely back in Exmouth Gulf. Major Lyons would lead a second similar raid on Singapore Harbour the following year, but Operation Rimau would end in disaster.
Following the success of Operation Jaywick, the Krait was based in Darwin and used to support coast watchers and other intelligence operations, which reported on Japanese activities to Australia’s north. Commissioned into the Royal Australian Navy (RAN) in 1944, she was officially renamed HMAS Krait and, in September 1945, was present for the local Japanese surrender at Ambon.
After the war, the Krait was employed by the British administration in Borneo until it was sold to a British-owned timber sawmill and renamed Pedang, meaning sword in Malay. In the late 1950s, a pair of Australian businessmen recognised the vessel’s historical significance and began fundraising to purchase her and have her returned to Australia.
In 1964, the Krait came back to Australia, where it was operated and maintained by the Royal Volunteer Coastal Patrol. Then, in 1984, the Krait was handed over to the Australian War Memorial and berthed at the Sydney Maritime Museum. It is now on display at the Australian National Maritime Museum in Sydney.
Sources:
Australian National Maritime Museum: Articles on the Krait and Operation Jaywick.
Royal Australian Navy: Article on the Krait and Operation Jaywick.
Australian War Memorial: Article on Operation Jaywick.
© Copyright C.J. Ison / Tales from the Quarterdeck, 2023.
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