Ocean Tug & Barge Engineering Corp. has completed the engineering of an AT/B conversion for Reinauer Transportation of Staten Island, N.Y., the third such AT/B conversion engineered by the Milford, Mass. firm for Reinauer with a fourth currently underway. The converted AT/B tug Craig Eric Reinauer was recently delivered by Senesco Marine of North Kingstown, R.I., to Reinauer Transportation. The 4610 BHP tug received an Intercon connection system at the Rhode Island shipyard.