Decker is flying a Nieuport 28, which entered service in early 1918. However, the date is supposed to be March 5, 1917. Furthermore, the Nieuport was a French-built aircraft that was flown by the French and Americans but not the Royal Flying Corps. See more
Witness Flight Lieutenant William Terrance Decker, Royal Flying Corps, returning from a patrol somewhere over France. The year is 1917. The problem is that the Lieutenant is hopelessly lost. Lieutenant Decker will soon discover that a man can be lost not only in terms of maps and miles, but also in time - and time in this case can be measured in eternities.