A pair of newly-built workboats, 26' mooring boats Chbika and Naila, were built to operate in Tangier, Morocco, but were unable to maneuver as required, having particular difficulty running at slow speeds with their original transmissions and ended up failing sea trials. The owner refused delivery of the vessels and told the builder to correct the problem. Unsuccessful after numerous modifications, the propulsion engineer contacted Twin Disc distributor Esco Transmissions. Franck Benoit…