Both David Coles and his co author Peter Sherrard are retired Rolls-Royce Aerospace engineers who have researched and explained how the subjects of The Four Geniuses of the Battle of Britain worked to achieve their individual successes.
Both David Coles and his co author Peter Sherrard are retired Rolls-Royce Aerospace engineers who have researched and explained how the subjects of The Four Geniuses of the Battle of Britain worked to achieve their individual successes.