IJmuiden-based Offshore Ship Designers is to design a new compact but powerful AHT offshore support vessel for Netherlands-based Neptune Marine Service BV. The order follows a recent contract for the design of two Azistern24/56 tugs for Singapore-based Pacific Offshore Engineering and Trading Pte. The key to both designs is that although the vessels will have the capabilities of much larger tugs and offshore support vessels, their smaller size reduces both capital outlay and on-going operational costs.