The Royal Australian Navy (RAN) supported Eldred's efforts and adopted the Porpoise Universal for military use. The RAN became the first navy to be equipped with single hose scuba. Eldred's diving school was established by RAN Commander Maurice "Batts" Batterham, GM. It was the first SCUBA diving school in Australia and the first in the world to teach with the single hose regulator — it was located at the Melbourne City Baths. It was a course designed to promote the new Porpoise, but later other brands of scuba were also used. The school continued for about ten years, later sending its students to the newer Associated Divers Academy which taught at the YMCA. The Australian government was still sensitive about the attempted invasion by the Japanese. They supported the course by allowing Batterham to conduct it and they kept a record of those who attended. This gave them a conscription base should hostilities ever occur again.
