- Narrator: One day, Percy stopped at the airfield.
- Percy: Hello. Who are you?
- Harold: I'm Harold. Who are you?
- Percy: I'm Percy. What whirly great arms you've got.
- Harold: They're nice arms. I can hover like a bird. Don't you wish you could hover?
- Percy: Certainly not! I like my rails, thank you.
- Harold: I think railways are slow. They're not much use and quite out of date.
- Narrator: Harold whirled his arms and buzzed away.
- [last lines]
- Percy's Fireman: [after Percy beats Harold in a race] Listen, boys. Here's a song for Percy.
- Percy's Fireman: [singing] Said Harold the Helicopter to our Percy, "You are slow! / Your railway is out of date and not much use you know!" / But Percy with his stone trucks did the trip in record time, / And we beat the helicopter on our old branch line!
- Narrator: Percy loved it.
- Percy: Oh, thank you.
- Narrator: He liked the last line best of all and was a very happy engine.