The port 145' BS4A catapult on the Hermes after 1966 could launch 50,000lbs to 97kts and the 139' BS4C on Centaur could launch 35,000lbs to 99kts. The Hermes retained the 103' BS4 on the starboard, although the RAN had the BS4 on the Melbourne lengthened by 9' to 112' in 1971 which did not...