TheRory Deans-led company has ordered four emergency response and rescue vessels(ERRVs) at Nam Cheong.

Designedfor work in the North Sea the vessels will be delivered between the third andfourth quarters of 2014 from shipyards in China.

Aspart of the deal the Aberdeen-based shipowner has secured options from NamCheong for an additional four vessels.

Sentinelsaid particular attention had been paid to the design in terms of sea keeping,crew comfort and fuel efficiency.

TheDP-rated