All Engines Go Test Animation

The All Engines Go Test Animation was created in 2019. Mattel was interested by the test animation and partnered with Nelvana to create Thomas & Friends: All Engines Go in 2020. Footage from the test animation was accidentally shown in a Cartoonito sizzler in 2021 to promote the block.

The designs featured in the test animation are rudimentary, and were later revised for the released series.

Characters

 * Thomas
 * Gordon

Locations

 * Tidmouth Sheds

Trivia

 * The storyboards for the test animation were briefly posted on Mike MacDougall's website in June 2021, but were later taken down. The episode in full with its finished animation and audio has yet to be seen by the public.
 * A crane bearing a loose resemblance to Cranky is seen loading Thomas' truck with hay.
 * Although normally referred to as a test animation, it's also been referred to as a pilot a few times by that head writer on AEG. Technically, it fits both descriptions.
 * According to Rick Suvalle, the test animation had some of the Mattel executives voicing the characters instead of the Toronto voice cast used in the show itself.

Goofs

 * The buffers on one of the sidings are incorrectly depicted with lightbulbs instead of buffers.
 * Thomas is lacking his eyebrows when the hay gets dropped into his car.