K will tell me if I'm wrong

... but I think these are the right Air Sea Rescue Ships Trish !!
HMAS Air Cloud (924) was built by Harbour Boat Building Co., USA. It was launched in 1944 and commissioned on 20 October 1944.
924 HMAS Air Cloud was the first Air Boat to go to West Bay, No.58 OBU to replace HMAS Coongoola, which then returned to Darwin. HMAS Air Cloud suffered propeller damage on a reef and therefore had to return to Darwin so was replaced by 912 HMAS Air Foam (it is believed). Later 926 HMAS Air Sailor and 923 HMAS Air View" took up Station at West Bay (RAAF Truscott) in the Kimberlies of W.A. During that period the Marine Section Officer was FLGOFF Stewart Brownson.
It was paid off on 20 February 1947.
It was transferred to the RAAF in 1949.
HMAS Air Spray (911) was built by Harbour Boat Building Co., USA. It was commissioned on 13 February 1945. It transferred to the RAAF in 1945 and returned to the RAN in 1965. It was re-commissioned as HMAS Cerberus (Y259) and was subsequently sold on 28 August 1969.
http://home.st.net.au/~dunn/ran/asrboats.htm