Wilbert Vere Awdry, OBE, better known as the Rev. W. Awdry, was an English clergyman, railway enthusiast and children's author, and creator of Thomas the Tank Engine, who starred in Awdry's acclaimed Railway Series.
The characters that would make Awdry famous, and the first stories featuring them, were invented in 1943 to amuse his son Christopher during a bout of measles. The first book (The Three Railway Engines) was published in 1945, and by the time Awdry stopped writing in 1972, The Railway Series numbered 26 books. Christopher subsequently added further books to the series.
While at work on the new harbour, Percy meets Harold, a helicopter who calls the railway 'slow, not much use, and quite out of date'. Percy is not happy at this description and is determined to prove him wrong.
After the pair have a heated debate as to who is right, Percy's chance to prove his case that he is faster than Harold comes on the way to the wharf. The race was on to see who was faster.
After some hair-raising moments, Percy wins because of a difficulty Henry has and he returns to his shed a happy engine!