HMAS Air Mercy was one of 21 air/sea rescue vessels originally built in the United States and Canada between 1943 and 1945 and transferred to the Royal Australian Navy under the Lend-Lease Agreement. These vessels were originally designed as anti-submarine craft but their high speed and manoeuvrability made them ideal as search and rescue vessels. In this role, their hulls were painted black and their upper decks and superstructure painted bright yellow. One vessel, HMAS Air Sprite, was built locally in 1960 to an almost identical design.

HMAS Air Mercy underway and dressed with masthead ensign in Sydney Harbour, 1953.
HMAS Air Mercy underway and dressed with masthead ensign in Sydney Harbour, 1953
 

Air Mercy was commissioned on 28 February 1945 in Sydney under the command of Sub Lieutenant Edward Johnson RANVR and officially listed as a tender to HMAS Madang. Its first few weeks of commission were spent at Garden Island in Sydney preparing for sea and conducting trials before proceeding northwards for Madang, New Guinea, on 23 April in company with HMA Ships Air Hope and Air Speed.

Air Mercy arrived in Madang on 24 June and conducted ASR duties until 20 August when it proceeded to Middleburg Island, Indonesia, to take soundings and survey seaplane moorings. It proceeded to Biak where it again took up ASR duties and rescued 10 people adrift in a launch on 11 October, and on 23 October assisted in the rescue operation of a Dutch Catalina crew when their aircraft crashed into Sorido Harbour. There were no serious casualties. It returned to Alexishafen at the end of October for a refit and returned to Biak at the end of December. It departed Biak on 17 February 1946 to begin its voyage back to Sydney where it decommissioned on 30 July 1946.

It recommissioned on 29 April 1949 as a search and rescue vessel operating between Sydney and Jervis Bay and remained listed as a search and rescue vessel until 1957.

Specifications

Class
Air/Sea Search and Rescue Vessel
Type
Air-Sea Rescue Launch
Pennant
ASR925
Builder
Fellows & Stewart Inc, USA
Commissioned
28 February 1945
Decommissioned
30 July 1946
Dimensions & Displacement
Displacement 24
Length 63 feet (19.2 metres)
Beam 15 feet (4.57 metres)
Draught 3 feet 4 inches (1.01 metres)
Performance
Speed Up to 28 knots
Complement
Crew 7-8 including 2 RAAF telegraphists
Propulsion
Machinery Twin Hall-Scott petrol engines
Horsepower 1200 bhp
Armament
Guns 2 x twin Lewis guns