"I hereby christen you UOS Atlantisand wish you always calm seasons." With these words and a bursting champagne bottle, Gesine Frerichs, assistant to the management of Hartmann Offshore GmbH, performed the honors at the âVirtual Christeningâ of Hartmannâs newly build MOSS 424-type Anchor Handling Tug Supply vessel at Nautitec's Transas Full Mission Bridge Simulator in Leer, Germany. The UOS Atlantis is the first in a series of AHTS vessels currently under construction. SimulationâŚ