Crosby Tunnel (T&F)/Behind the Scenes

Background Information
Crosby Tunnel is a tunnel west of Crosby on the Island of Sodor created by the Rev. W. Awdry.

Crosby Tunnel first appeared in the sixth series episode Thomas the Jet Engine, which first aired in 2001. Its last appearance was in the twenty-fourth series episode World of Tomorrow, which was released in 2020.

Gauge 1 sets
Crosby Tunnel debuted in the sixth series of the television series.

The tunnel has gone through a few aesthetic changes throughout the series:
 * Series 6:
 * The tunnel had walls on the sides and the tracks were straight.
 * Series 10:
 * The walls were removed and the tracks are curved.

CGI set
In 2009, the series introduced Computer-Generated Imagery (CGI) as a replacement for the show's long-standing live-action models. Crosby Tunnel was recreated from scratch in CGI by Jam Filled Toronto. The model was "hand-sculpted" in Maya, a 3D animation and modelling software.


 * Series 23:
 * A passing loop and a hill are added on the Knapford side of the tunnel