Wijsmuller Marine has accepted the first of two azimuthing stern drive (ASD) tractor tugs from the Spanish shipbuilder Astilleros Zamacona. Following a crew familiarization period, the Ayton Cross is expected to be in full service by the middle of the month. The second tug, Ormesby Cross, is to be delivered by Zamacona before the end of the year. Both tugs will be based on the River Tees from where the Wijsmuller tug fleet covers both the Tees and the port of Hartlepool. With a bollard pull of 60 tons each, the two new tugs will be the most powerful units in the fleet and will allow Wijsmuller to transfer one of its existing Tees tractor tugs, Yarm Cross, to its Tyne operation.