21. There were 10 casualties, including Sub-Lieutenant Harold Courtenay Tennyson and Able Seaman Charles Thomas Crockford. 22. Able seaman is the equivalent rank to private ( trained ), or simply Air Force.23. They are able Seaman Electronics Technician Aaron Scott and Able Seaman Boatswains Mate Matthew Parry. 24. Three more years, with appropriate ability displayed, would see a sailor advanced to able seaman . 25. He enlisted as an Able Seaman at Sub Lieutenant. 26. They are able Seaman Electronics Technician Aaron Scott and Able Seaman Boatswains Mate Matthew Parry. 27. The position is an apprenticeship to become an Able seaman , and has been for centuries. 28. Roger is the youngest, originally the ship's boy, but promoted to able seaman in later books. 29. In the able seaman , followed by leading seaman, which is followed by the petty officer ranks. 30. For an able seaman , this was equivalent to several months'salary . | group = Note }}
