The closing epilogue of this TV mini-series states: "Bennett's team became the heart of the R.A.F. Ferry Command. With their American allies they delivered over 25,000 aircraft from Newfoundland, changing the course of the war. More than 500 men and women died flying for Ferry Command. Captain Don Bennett went onto found and lead the Pathfinders, an elite group of pilots who led Allied bombers to their targets in Nazi Germany."
The aircraft crews are using headphones with coiled cables. Coiled cables did not exist in 1940.