 Following his success as captain of the "Mediator", Luttrell was moved to command the 74-gun in April 1783, "Ganges" then serving as the guard ship at Portsmouth.He continued to be active in parliament as the American War of Independence drew to a close, likely supporting the Shelburne Ministry's peace proposals, and launching an attack on Sandwich, blaming him for having failed to prepare the navy adequately for the war, and for having mismanaged it during it.He played a less prominent role in the Pitt administration, usually avoiding party questions but supporting independents.