L.A.D.A.S.

L.A.D.A.S' accident was caused by subsidence of the track, leading to the pinion wheel disengaging - this was amended by fitting guard-bars to the rack-rail. Since the Culdee Fell Railway opened four years later, it seems likely that guard-bars would have been required by the Board of Trade from the outset, implying a different chain of events causing the derailment, somehow disengaging both the pinion wheels and the gripper fitted to the engine which connects with the guard-bars to prevent such an event.

Godred is based on the Snowdon Railway's "L.A.D.A.S.", who also suffered a similiar fate.