Both ships traded on a regular two week service between Sydney : Hobart : Melbourne : Hobart : Melbourne : Hobart : Sydney.
In 1975 Seaway Prince, a Gas Turbine Electric Vessel, built at BHP, Whyalla was commissioned as a replacement for Seaway Queen.
Seaway Queen withdrew from the Tasmanian Trade on arrival Sydney, 7th July 1975 and after dry docking was sold by the Union Steam Ship Co. to Trucape Pty Ltd Melbourne on 22nd July 1975. They in turn bareboat chartered the vessel to Nabalco and operated by James Patrick & Co. trading to the Gulf of Carpentaria.
Meanwhile Seaway King and Seaway Prince serviced the Sydney : Hobart : Melbourne Trade until the introduction of Seaway Princess in February 1976, sister ship to Seaway Prince and replacement vessel for Seaway King. Seaway King was sold to Best Shipping in 1976 and spent further ten years on ‘Roll on Roll off’ services out of Singapore and later Mediterranean ports. Arrived at Piraeus on 14th August 1986 for demolition by Greek Ship Breakers.
Seaway Queen’s charter to Nabalco Pty Ltd terminated following her arrival at Sydney from Gove on 17th November 1978. (The Log 1979/1)
The vessel was laid up at Jubliee Wharf Sydney.
Photographs and information Rex Cox and Captain.Mike Triplett Hobart, ‘The Log’ magazine.