Tub Boats
The tub boats were 20 feet (6.1 m) long and 5 feet 6 inches (1.68 m) wide, and carried about 20 tons payload; the usage of tub boats was not confined to the Bude Canal. They were commonly operated by coupling between 4 and 6 together and hauling them – by horse power – together. A "train" of boats could therefore be 120 feet (37 m) long, and on the very sinuous alignment of the canal, the train must have been difficult to pass round sharp curves. Steering was possible by manually altering the connection between adjacent boats, using handspikes.
Each boat had four wheels 14 inches (360 mm) in diameter for running on the inclined planes; the boats were hauled up and down individually.
The operation of lining the tub boats up with the rails, at transfer from canal to plane, must have been difficult. Once engaged with the continuous chain, it would have been impracticable to stop the motion momentarily while the wheels were guided to the rail channels; but no record is available as to how this was achieved.
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