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The World's Strongest Engine

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This article is about the episode. You may be looking for the Philippine DVD or the Swedish DVD.
"That's me, the world's strongest engine!"
— Diesel
The World's Strongest Engine

David Mitton


Phil Fehrle


David Mitton
(story idea)
Paul Larson


Michael Angelis (UK)
Alec Baldwin (US)

Air date

September 30th,
2002 (UK)
November 4th,
2002 (AUS)
January 27th,
2003 (US)

Previous episode

Twin Trouble

Next episode

Scaredy Engines

The World's Strongest Engine is the eleventh episode of the sixth season.


Henry has had an accident pulling a goods train and is sent to the works to be mended, and unfortunately Diesel is the only engine available. The engines are not very happy about this, seeing that they know Diesel is troublesome.

The next day, Diesel is working at the docks and the trucks tease Diesel as he's shunting them, so he boasts he can push them all at the same time. Diesel then arranges a line of twenty trucks, but soon finds he is unable to move them (unbeknownst to him, a shunter has put the brakes on), so Diesel decides to pull them instead. He pulls so hard he breaks loose and falls onto a barge. Henry, who is now repaired, arrives at the docks with The Fat Controller, who is cross with Diesel, and sends him home in disgrace.

Henry then pulls away from the docks, pulling the line of trucks easily. And the engines all agree that even trucks can be helpful sometimes, like helping to get rid of Diesel.





  • In the first scene, Clarabel is facing the wrong way.
  • One of the workmen who comes to rescue Henry is tilted.
  • At Tidmouth Sheds, the buffers behind Thomas are resting on top of the rails.
  • When Diesel pushes the trucks back, his siderods are going forwards.
  • Diesel starts with three trucks and adds four more, but the narrator says he starts with five.
  • After shunting the trucks, Diesel runs on the third line, but he should have traveled on the first line; the next scene shows the third line is blocked by the trucks.
  • After the trucks shout "Push! Push! Push!", steam is seen going into Thomas, indicating reversed footage.
  • When the camera moves with Diesel a wire is visible on his coupling.
  • As the trucks laugh, they are not in the formation that Diesel arranged them, but as they were before jeering at Diesel.
  • Diesel falls off the quay face-first, but lands back-first.
  • When the Fat Controller looks down at Diesel, there appears to be a rip in his suit.
  • In the shot where Diesel's teeth were shown and his eyes are looking left to right you can see that his face is moving.
  • In a close-up of Diesel, the scene is reversed as you can see steam returning to Thomas.
  • Diesel could not have pulled the trucks anyway as the line he is on leads to a dead end.
  • Oliver and Duck have the same whistle sound.
  • During the final scene with Thomas and Percy, both of their roofs are crooked.
  • A brakevan should have been added to Diesel/Henry's train.
  • When the narrator says "fifteen" Diesel jumps backward from one spot to another, indicating a film cut.

In Other Languages

Language Name Meaning
Norwegian Verdens sterkeste lokomotiv The World's Strongest Engine
Danish Verdens mest kraftfulde motor The World's Most Powerful Engine
Japanese せかいさいきょうのきかんしゃ The World's Strongest Engine
Slovenian Najmočnejša lokomotiva na Svetu The Most Powerful Locomotive in the World
Polish Najsilniejsza Lokomotywa na Świecie The Most Powerful Locomotive in the World



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