Vivendi, Canadian scientists and technicians would have access to all technical data, but Australians would not. Penney was anxious to secure the services of Titterton, who had recently emigrated to Australia, as he had worked on the American Trinity and Crossroads tests. Menzies asked the vice-chancellor of the Australian National University, Sir Douglas Copland, to release Titterton to work on Operation Hurricane. Cockcroft also wanted assistance from Leslie Martin, the Department of Defence's Science Advisor, who was also a professor of physics at the University of Melbourne, to work in the health physics area. The two men knew each other from their time at Cambridge University before the war. After some argument, Martin was accepted as an official observer, as was W. A. S. Butement, the Chief Scientist at the Department of Supply. The only other official observer was Solandt from Canada. An advance party of No. 5 Airfield Construction Squadron from RAAF Base Williamtown, New South Wales, moved to Onslow in August 1951 with heavy construction equipment, taking the train to Geraldton and then the road to Onslow. This was then transported to the Montebello Islands. A prefabricated hut was taken across by Karangai, along with equipment for establishing a meteorological station. Other materiel was moved from Onslow to the islands in lots in an ALC-40 landing craft manned by the Australian Army and towed by Karangai. This included two bulldozers, a grader, tip trucks, portable generators, water tanks and a mobile radio transceiver. The hut was erected, and the meteorological station henceforth manned by an RAAF officer and four assistants. Roads and landings were constructed, and camp sites established. The next stage of work began in February 1952, in the wake of the December decision to proceed with the test. A detachment of No. 5 Airfield Construction Squadron was flown to Onslow from RAAF Bankstown in two RAAF Dakota aircraft, and were then taken to the islands by the Bathurst-class corvette . Karangai fetched of Marston Mat from Darwin that was used for road works and hardstands. The SS Dorrigo brought in another three weeks later. A water supply was also developed. To bring water from the Fortescue River, a quantity of Victaulic-coupling pipe was brought from the Department of Works in Sydney and the Woomera Rocket Range in South Australia. Because the pipe was laid around obstacles, this proved to be insufficient. No more pipe was in