Having secured long-term contracts with Petrobras for as many as four PSV 4500, ship owner Starnave contracted Detroit SY / Brazil for construction of its new fleet. PG has been awarded orders for liquid cargo handling systems and utility pumps for same series of vessels, which also comprise optional eight vessels to be built. The vessels are Guido Perla designed GPA PSV 4500, and delivery commences in Q3/2011.