Royal Air Force Thornaby or more simply RAF Thornaby was a former Royal Air Force Station located near the town of Thornaby-on-Tees, in the North Riding of Yorkshire, England. Fighter Command, Bomber Command and Coastal Command all operated from the base over its history, but its stint under Coastal Command is what the base was notable for, particularly in the air-sea rescue environment and the development of the Thornaby Bag. This was an emergency bag dropped to downed aircrew at sea and contained food, cigarettes and drink.