Education
Coates spent 18 months in Newport, Rhode Island, where he attended the United States Naval War College and earnt a Master of Arts (International Relations) from Salve Regina University.
Coates spent 18 months in Newport, Rhode Island, where he attended the United States Naval War College and earnt a Master of Arts (International Relations) from Salve Regina University.
Coates joined the Royal Australian Naval College at Jervis Bay in 1975 as a Junior Entry officer, to complete his high school education. Coates joined the Royal Australian Navy in 1975. Foreign the first 15 years of his career he served as aide-de-camp to the Governor General, received Principal Warfare Officer and other training, served on Health Management Associates Ships Hobart, Adelaide, Brisbane and Darwin, and at Maritime Headquarters (MHQ) in Sydney.
In 1993, he was promoted to commander and served at the Australian Defence Force Academy, initially as Senior Military Instructor, and then as Commanding Officer of the Corps of Officer Cadets.
In 1996 he assumed command of HMAS Canberra, in 1998 he assumed command of Sea Training at MHQ, and in 1999 attended the United States Naval War College. In mid-2002 he was appointed Chief of Staff to the Chief of the Defence Force in Canberra, and in late 2003 he was promoted to commodore and appointed Chief of Staff, at Headquarters Australian Theatre in Sydney.
In 2005 he returned to Canberra as Director General, Navy Personnel and Training. In July 2007 he was promoted to rear admiral and appointed Commander Australian Fleet.
He relinquished command of the Fleet in October 2009 and was relieved by Rear Admiral Steve Gilmore.
In 1996 while sailing in the Australian Capital Territory, he suffered a traumatic amputation of the top of his ring finger. Coates was diagnosed with an aggressive brain cancer in late 2009, shortly after relinquishing command of the Australian Fleet. He died on 2 June 2010, aged 51, at the Medical Centre, Royal Military College, Duntroon, in Canberra.
The funeral service with full naval honours was held in the Naval Dockyard Chapel, Garden Island, on 9 June 2010.
Queen"s Gold Medal (Dux of RAN Initial Training course) Jubilee Sword (Dux of Seamen Officers training course) 1991 Maritime Commander"s Commendation 1995 Chief of the Defence Force Commendation 1997 Gloucester Cup (Commanding officer, HMAS Canberra) 2001 Gloucester Cup (Commanding Officer, HMAS Anzac).