The 1977 Silver Jubilee Fleet Review with some of the ships labeled.
HMS Ark Royal (R09) was laid down in 1943 as an Audacious class fleet carrier but was completed in 1955 to a heavily modified design.
At this stage, she was the only aircraft carrier in the RN capable of operating conventional fixed-wing aircraft and would be withdrawn from service in 1979.
HMS Hermes (R12) was originally laid down in 1944 as a Centaur class light fleet carrier but was completed in 1959 to operate in the Jet Age.
In 1971 (to 1973) she was converted to a commando carrier (LPH) in line with the wishes of the politicians of the day to phase out fixed-wing carriers.
She had been offered to the Australians in 1968 as a replacement for HMAS Melbourne (on the left) but this was refused due to the high operational costs involved.
Hermes would revert to the aircraft carrier role (thanks to the advent of the Sea Harrier) in time to play a crucial role in retaking the Falkland Islands in 1982. She was sold to India (Viraat) in 1987 and had a long successful career before being broken up in 2020.
HMAS Melbourne (R21) was Australia's third aircraft carrier after Sydney and Vengeance and was the third aircraft carrier in the world to be completed with an angled deck in 1955.
She gained a reputation as a jinxed ship after fatal collisions with the destroyers HMAS Voyager in 1964 and USS Frank E. Evans in 1969.
The Melbourne was scrapped in 1982 after 27 years of service for the RAN.