Since leaving the RFA he has worked aboard cable ships for BT Marine; taught radar, ship handling and Bridge Team Management at what is now the Warsash Maritime Academy on the Solent; and been employed by a marine insurance company. Before joining the PLA he was director of operations for the Rochester-based Lapthorn shipping company.

Roy Stanbrook said: 'These are exciting times to be on the Thames and to be working with a really active river community. Since joining the PLA I’ve been very impressed by the respect river users have for each other.

'There is a lot of change underway and I know change can cause tensions. I’m determined to work with all our Thames partners, to hear their hopes and concerns, and ensure we get what’s best for our river and the people on it.'