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There were many examples of self-sacrifice, mateship and bravery among the survivors. One of the most impressive was Sister Ellen Savage. She led a group in prayer, helped raise their morale, provided medical care to the injured (despite her own considerable injuries), and supervised the allocation and rationing of the meagre food and water supplies. She was awarded the George Medal for her actions.
Her deeds, and those of others, ensured the survival of many of those who had found wreckage to cling to after the sinking. They could not help all, however, and several men who had survived the sinking and were with their mates died before final rescue.
That rescue came when they were finally spotted by a
plane, and the US naval ship Mugford cautiously steamed out to
rescue the remaining 63 men and one woman.
The 332 people aboard the Centaur's last voyage had ranged in age
from 15 to 67. Most were Australian, with some English, Scots, and
individuals from Sweden, Iceland, Finland, Norway and Canada.
Among those aboard were at least eight sets of brothers, including one set of three -- all perished.
There were also the usual stories of good luck and bad luck -- people who should have been aboard but were not, and others who were not supposed to be on board that fateful voyage but joined the ship at the last minute.
When the last survivor had been rescued from the water and the final tally was done, there were only 64 people of the original 332 alive.
|
Group |
Dead | Saved | Total |
| Merchant crew (civilian sailors who signed on for six months at a time) | 45 | 30 | 75 |
| Ship's medical staff (Members of the Australian Army, males in the Medical Corps, females in the Nursing Service) | 44 | 20 | 64 |
| 2/12th Field Ambulance | 138 | 11 | 149 |
| Attached Australian Army Service Corps | 41 | 3 | 44 |
Why did the crew and the medical staff have the lowest rate of deaths? Largely it was because of the grim geography of death. The crew knew the ship well, and were quartered at the front and rear ends and below decks. Some were on duty, or had only recently come off duty and were not fully asleep. The medical staff were also either forward or aft, andon the lower decks. The Field Ambulance and attached Service Corps soldiers were mainly in the middle hospital ward area -- right where the torpedo hit.

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AWM ARTV09088. WW2 poster.
Who sank the Centaur, and why?
The Australian Government protested to the Japanese about the atrocity. The Japanese denied it, and countered with accusations about Japanese hospital ships having been attacked by Allies. There was some truth in some of these accusations, but where the Allies had attacked they had either stopped as soon as they realised that the ships were hospital ships, or the markings on them were inadequate and not able to be seen from the attacking aircraft. However, in January 1943 a US submarine had sunk a Japanese troop transport carrying 9500 soldiers -- and then killed thousands of them in the water. In early March, US bombers had sunk a convoy of 22 ships, most of them troop transports. For the next seven days, boats and planes machine-gunned the survivors, killing more than 3000 men.
Prime Minister Curtin initially called on the Japanese Government to punish those responsible, but had to tone down his protest for fear that there might be retaliation against Australian prisoners of war who might in turn be accused of war crimes, however wrongly, by the Japanese.

Cartoon reproduced from a cartoon by Ian Gall published in ‘Australian
Hospital Ship Centaur The Myth of Immunity’ by Christopher S. Milligan
and John C.H. Foley. The cartoon depicts a Japanese Navy officer tearing
into two pieces a document labelled "International Law". He sits
on the shoulders of two 'caveman-like' men who are labelled
"Ghoulishness" and "Barbarity" respectively.
Between 1944 and 1948 there were several investigations of
the evidence about the sinking. These investigations were hampered by the
loss or destruction of Japanese documents and the inability of several
Japanese witnesses to be questioned.
However, the man who sank the Centaur has now been acknowledged in
an official Japanese history of the war as Lt Cdr Hajime Nakagawa, captain
of submarine I-177.
Nakagawa did not have an unblemished record before this attack. As a
submarine commander early in the war he had sunk three ships --
unfortunately one of them was another Japanese submarine, in which 81
sailors lost their lives.
Was his attack on the Centaur justified, or was it an inexcusable war crime? The Japanese Army and to a lesser extent the Air Force were known for their disregard of the Conventions and prisoners of war, but the Navy had a much better reputation. If the Centaur had broken the Hague or Geneva Conventions by carrying prohibited personnel or armaments and the Japanese knew about this, then the Centaur was a legitimate war target. If it did not carry those prohibited people or armaments, or if it did but the Japanese did not know about it, then it must be considered a protected vessel. This is almost certainly the case.
Assuming that the Centaur was not a legitimate target, the question arises as to why the Japanese captain would have attacked it. A number of possible reasons have been offered over time:
As the ship was heading towards the war and was not carrying wounded, it could be considered a legitimate target. This is not a tenable argument -- the hospital ships had immunity from attack at all times when they were correctly designated.
He was following orders. A Japanese secret order to submarines of 20 March 1943 said: 'Do not stop with the sinking of enemy ships and cargoes; at the same time that you carry out the complete destruction of the crews of the enemy's ships, if possible, seize part of the crew and endeavour to secure information about the enemy.' However, this order should not have applied to protected hospital ships.
He hated the enemy and did not care about The Hague and Geneva Conventions -- which seems a reasonable theory in the circumstances.
He was determined to sink as many ships as possible for his own reputation -- although, if the Japanese Navy was largely committed to observing The Hague and Geneva Conventions then sinking a hospital ship would not have brought him any credit.
Perhaps the motivation of Nakagawa can be guessed at by his involvement in a series of sinkings of British ships in the Atlantic Ocean in the following year. In 1944, the submarine I-37, captained by Nakagawa, was involved in attacks on three British ships. Witnesses said he took the captain of the British Chivalry and forced him to watch as the submarine crew machine gunned lifeboats holding 52 survivors, killing all but eight. Nakagawa also ordered the killing of over one hundred other survivors -- by pistols, machine guns, sledge hammers and samurai swords. He was tried at the end of the war for these killings.
At the trial, much of the evidence against Nakagawa was disallowed, and he was eventually sentenced to eight years' hard labour. He was released in 1954 after six years' imprisonment. He died in 1968 at the age of 84, having never been tried for the sinking of the Centaur, and having refused to talk to researchers about it.
Where is the Centaur?
The site of the Centaur has never definitely been located. The best indication is from a survivor who was recording its position at the time of its sinking, and is shown on the map above. His evidence is supported by the location of the survivors, consistent with the pattern of currents for that time of year. It is almost certainly not where the plaque at Caloundra places it.
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The Centaur is a war grave, and was declared a protected historic site in 1990. It is believed to be at a depth that makes it inaccessible to conventional diving, but if it could be inspected it may contain evidence that could settle the rumours for all time.
The Centaur has many memorials in Australia -- including the plaque at Caloundra, a rose garden at Heidelberg Repatriation Hospital in Melbourne, in a memorial window at Concord Repatriation Hospital, and on a plaque at Brisbane's ANZAC Memorial. Centaur victims are also named on many war memorials around Australia including the Australian Service Nurses National Memorial on ANZAC Parade in Canberra.
The Centaur has become particularly associated with nurses -- 11 of the 12 nurses on the staff of the hospital ship died in the sinking. However, it should not be forgotten that all but one of the 18 doctors aboard also died, and that most of the dead were Field Ambulance men whose job was to face the enemy not as armed soldiers, but in a way that often exposed them to the enemy while they tried to save lives. Perhaps that is the true message of the story of the Centaur -- that one important aspect of the Australian experience of war is the self-sacrifice and mateship that we pride ourselves on as part of the ANZAC tradition, and the Australian character.

‘Centaur’ Memorial, Coolangatta, Q. Photo courtesy Shirley and Trevor
McIvor.
The MV Krait and Operation Jaywick
The second memorial mentioned at the start of this article, the one at Garden Island at Rockingham, near Perth, is at first glance a strange one. It lists dozens of names from a variety of places and services. There are men from the Navy, Army and Air Force. There are civilians. There are people from Britain, New Zealand and Portugal. And there is the strange name binding them -- the Services Reconnaissance Department, better known as Z Special Unit.
Z Special Unit
Z Special Unit was a top secret unit formed in 1942 as a special operations group to gather intelligence and carry out sabotage right at the heart of the enemy. Its members were sworn to secrecy about their operations, and were highly trained as silent and effective killers.
Their first mission was to be Operation Scorpion -- infiltration of the Japanese-controlled port at Rabaul in New Britain. They trained for this with a secret and silent raid on Townsville Harbour, where they attached dummy mines to numerous ships. The next morning the authorities were furious to discover the 'mines', and to realise how vulnerable they were to a covert attack.
Operation Jaywick
A change in the war situation led to the abandonment of the plan to infiltrate Rabaul Harbour, and the focus switched to Singapore. Code named Operation Jaywick, the aim of the raid was for a group of Australian and British Z Special Unit operatives to sneak into Singapore Harbour, and attach time-delayed limpet mines to as many ships as possible. The raiders would try to escape before the ships exploded. Singapore was a particularly poignant choice -- thousands of Australian and other Allied soldiers and nurses were being help prisoner of war there, and several of the men chosen for the raid had escaped from there when Singapore fell to the Japanese Forces on 15 February 1942. One man's wife was a prisoner of the Japanese there, while several also had relatives and mates in the Changi prison compound. They would be so close to their loved ones, yet unable to help them directly.
The Krait
How to approach the port unseen? The key would be the small ship, the Krait. This was a former Japanese fishing boat, named the Kofuku Maru, that had been seized and used to transport many refugees during the fall of Singapore. It was later sailed to India, where it was re-named after a deadly Indian snake, the Krait. The little boat was a bit over 20 metres long, less than three metres wide, with a top speed of six-and-a-half knots, and a range of 13000 kilometres. As an authentic ship from the Singapore area it would not arouse suspicion.

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AWM 067338. MV ‘Krait’, length 70 foot, diesel-engined, speed six and
a half knots, range 8000 miles. Formerly the property of a Japanese
fishing firm in Singapore.
The Krait was stocked with necessary supplies -- sealed tins of food and fresh water for four months, medical stores (including cyanide suicide pills for each man), 50000 cigarettes for barter or bribes of locals, £200 (equivalent to many thousands of dollars today) in Dutch guilders, arms, ammunition and explosives, and the dismantled canoes that would be re-assembled for the raid. Care was taken to make sure as many of the goods as possible were Japanese-made -- sunglasses, for example, which might be recognised at a distance, pencils, paper, cooking pots, even toothbrushes. If any of these fell overboard they would not indicate anything suspicious.

The epic journey of MV ‘Krait’.
On 8 August 1943 the Krait set out on the 4000 kilometre trip from Cairns in Queensland to Exmouth Gulf in Western Australia. The crew of 14 ranged in age from 20 to 43, with most in their twenties. They included four soldiers and ten sailors -- two Englishmen, a Welsh coalminer, a Northern Irishman, and ten Australians -- from every State except Tasmania. None spoke Japanese.
At Exmouth Gulf they took delivery of four special collapsible canoes flown out from England. These were equipped with small masts and black silk sails. They were six metres long and less than a metre wide. They were finely tapered at both ends, with hulls of seven-ply rubber and canvas -- almost impossible to hole -- which pulled on to fit like skins. The covering included top decking except for three manholes, two of which were used for paddling, the other for supplies. Each manhole had a flexible waterproof covering with an elastic aperture which fitted the paddler's waist.
They set out from Exmouth on 2 September, heading towards Singapore through enemy-controlled waters. They flew a Japanese flag as part of their disguise. The crew stained their bodies brown, dyed their hair, and dressed in sarongs so that they would appear to any casual observer to be Malays or Japanese. None could speak the language, so the risk was that if any Japanese warship became curious and decided to take a close look the crew would have had to fight to the death.
Once in Japanese waters, they took extraordinary care that there would only ever be one or two men on deck, and that no rubbish of any sort -- even a match -- would be thrown overboard. They were aware that any trail of suspicions rubbish might indicate that they were in the area.

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AWM 067336. Singapore, Straits Settlements, September 1943. Members of
Operation Jaywick, Z Special Unit, on board the MV Krait en route
for Japanese occupied Singapore.
On 18 September the Krait slipped into one of the small, heavily-vegetated islands near Singapore Harbour, and unloaded the three teams of canoeists and their equipment. The Krait would then chug around the area, trying to be inconspicuous, until rendezvousing with the saboteurs on the night of 1 October, 100 kilometres from Singapore. This gave the commandos 12 days to get to Singapore Harbour, sink as much shipping as they could, hide out until the expected furious search for them had eased, and get back to the Krait.
On 20 September three two-man teams loaded their equipment into the special canoes. Their task now was to move to a special hiding place, then select the best time to paddle silently through the night into Singapore Harbour, select their targets, attach the limpet mines, and escape to hide on another island until they could steal back to the waiting Krait.
Each man wore a black two-piece suit of japara silk over a khaki shirt, two pairs of black cotton socks, and black sandshoes with reinforced soles. Each wore a black webbing belt holding a .38 revolver and 100 rounds, a sheath knife, a short loaded rubber hose (as a cosh), a small compass, and a first-aid kit. Each also carried his cyanide capsule -- to take effect five seconds after being eaten. Each canoe carried 300 kilograms of equipment, including food and water for a week.

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AWM 300921. Subar Island, Netherlands East Indies, September 1943. From
this point the canoe parties of Operation Jaywick departed for Singapore
Harbour.
The crews crept forward to their final staging point on an island about 12 kilometres from Singapore. They could see the city lights. They set out near midnight the following day, but were caught in a strong current that stopped any progress, and they returned to their hiding place. Throughout the next day the weather and tides made the assault impossible.
The night of 26 September was their final chance to carry out their mission and return in time to meet the Krait as agreed. The three two-man crews silently glided into the Harbour at different points, and quietly selected their targets. After the physically arduous task of paddling into the harbour, their nerves were now strained by the closeness of the enemy -- one noise in attaching the mines could have led to a curious sailor raising the alarm. Even if one person aboard a ship had idly looked over a railing or through a porthole in the right direction, the saboteurs could have been seen -- which would have led to the failure of the mission, and their capture and certain death. Fortunately their training and luck held, and nobody saw them in the shadows of the hulls of the target ships.
The crews then silently paddled out of the harbour towards their chosen hiding spot, and, despite the exhaustion and tension of more than 80 kilometres of paddling in enemy waters, listened to hear the roar of their mines destroying the enemy ships early the next morning.
As they slipped into their swampy hiding place, the explosions came, nine of them, and the harbour erupted into uproar. Japanese planes and ships started searching for the saboteurs, but the Z Force men stayed hidden until they could move out secretly to rendezvous with the Krait -- after another 90 kilometres of paddling. Once having finally boarded the Krait they now had to travel out of the enemy waters, this time with the enemy much more likely to be alert and suspicious.
There was one very dangerous moment, however. One night, still deep inside enemy waters, a Japanese warship on patrol came right up to them and travelled alongside them for a distance, yet did not challenge them. Why not? The men later speculated on the reason -- was it because their disguise was so good? Or, more likely, that they had caught a tired officer at the end of his watch, and challenging the apparently innocent boat would have meant that he was delayed in going off duty for a rest?
Whatever the reason, their luck held on that night, and the Krait passed unchallenged out of enemy waters. On 13 October the Krait had cleared Lombok Strait, and was heading back towards Exmouth. Lyon finally broke radio silence, and signalled the success of the mission. There was no reply, however, so the Krait re-imposed its radio silence until two days later, when the re-sent signal received a reply. The authorities now knew that they were on their way back, and would be able to protect them. On 19 October the Krait anchored off the American base of Potshot in Exmouth Gulf. It had been 48 days and 8000 kilometres since the Krait had headed north to Singapore -- and 33 of those days had been spent deep inside enemy waters.

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AWM P00365.004. Ambon, 1945. MV Krait alongside the wharf. An AIF
Guard of Honour is awaiting the arrival of General Blamey to take the
official surrender of the Japanese in the area.
The raid was a great success -- both in physical destruction or severe damage to seven vessels representing nearly 40000 tonnes of Japanese shipping; and also psychologically for the raiders, and for the Allied POWs in Changi.
All 14 raiders returned home safely, though six were in a group chosen to try and repeat the raid in the 1944 Operation Rimau, when every one of the 23 men on that raid was killed or captured and executed. Most of these men are buried at Kranji War Cemetery in Singapore, but every one of them is now commemorated in the names of the streets of Exmouth.


Urangan, Qld. The memorial to the men of the Z Special Unit. The men of
Operation Jaywick and some of the other Z and M special operatives were
trained on nearby Fraser Island. Photos courtesy Shirley and Trevor
McIvor.
The Operation Jaywick crew was:
Lieutenant Colonel I. Lyon (GH)*
Lieutenant Commander D. Davidson (RNVR)*
Captain R. Page (AIF)**
Lieutenant H. Carse (RANVR)
Leading Stoker J. McDowell (RNR)
Leading Telegraphist H. Young (RANR)
Acting Leading Seaman K. Cain (RANR)
Able Seaman W. Falls, (RANVR)**
Able Seaman A.W.G. Huston DSM (RANVR)*
Able Seaman A. Jones (RANVR)
Acting Able Seaman F. Marsh (RANVR)*
Acting Able Seaman M. Berryman (RANVR)
Corporal R. Morris (RAMC)
Corporal A. Crilley (AIF)
* Killed in action or died on Operation Rimau
** Captured and beheaded by Japanese on Operation Rimau
(AIF) Australian Imperial Force
(GH) The Gordon Highlanders
(RAMC) Royal Army Medical Corps
(RANR) Royal Australian Naval Reserve
(RANVR) Royal Australian Naval Volunteer Reserve
(RNR) Royal Naval Reserve
(RNVR) Royal Naval Volunteer Reserve
At
the end of the war the Krait was used to carry timber on Borneo
rivers until it was bought as a war memorial and returned to Australia in
1964. The Krait is now permanently moored in Sydney Harbour, part
of the National Maritime Museum collection at Darling Harbour.
Sources:
Ronald McKie, The Heroes, Angus and Robertson, Sydney, 1960.
Peter Thompson and Robert Macklin, Kill The Tiger, Hodder, Sydney, 2002.
Christopher S. Milligan and John C.H. Foley, Australian Hospital Ship Centaur The Myth of Immunity, Nairana Publications, Hendra, 1993.
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