A North American design tailored for South American operation: the new fleet of diesel-electric push boats engineered by Robert Allan Ltd. (RA) brings an improved level of performance to the Paraná River. The Paraná River flows some 3,000 miles through Brazil, Paraguay and Argentina, meeting the Paraguay River and then farther downstream the Uruguay River before eventually emptying into the Atlantic Ocean at Buenos Aires. Second only to the Amazon for longest river in South America…