In the 1980s, the Skarloey Railway bought two worn out Hunslet Diesels from the National Coal Board and using parts from both engines, constructed one good engine; Fred. He was put into service in 1989 as a secondary diesel (to Rusty) and is used exclusively for maintenance and engineering work.
Once a year, Rusty and Fred have to pull a slow train that spreads weedkillers on the tracks.
Fred has lots of teething troubles and often falls ill leaving him unable to do work.
Fred is painted dark grey with red side rods. He has black and gold name and number plates.
- Fred is named after a fogman that saved Peter Sam and his passengers from crashing into a forest fire,