A reaction ferry is a cable ferry that uses the reaction of the current of a river against a fixed tether to propel the vessel across the river. Such ferries operate faster and more effectively in rivers with strong currents.
Some reaction ferries operate using an overhead cable suspended from towers anchored on either bank of the river, whilst others use a floating cable attached to a single anchorage that may be on one bank or mid-channel. Where an overhead cable is used a "traveller" is usually installed on the cable and the ferry is attached to the traveller by a bridle cable. To operate the ferry either the bridle cable is adjusted or a rudder is used, causing the ferry to be angled into the current, and the force of the current moves the ferry across the river.
The ferry may consist of a single hull, or two pontoons with a deck bridging them. Some ferries carry only passengers, whilst others carry road vehicles, with some examples carrying up to 12 cars.
Famous quotes containing the words reaction and/or ferry:
“Christianity was only a very strong and singularly well-timed Salvation Army movement that happened to receive help from an unusual and highly dramatic incident. It was a Puritan reaction in an age when, no doubt, a Puritan reaction was much wanted; but like all sudden violent reactions, it soon wanted reacting against.”
—Samuel Butler (1835–1902)
“What have Massachusetts and the North sent a few sane representatives to Congress for, of late years?... All their speeches put together and boiled down ... do not match for manly directness and force, and for simple truth, the few casual remarks of crazy John Brown on the floor of the Harper’s Ferry engine-house,—that man whom you are about to hang, to send to the other world, though not to represent you there.”
—Henry David Thoreau (1817–1862)