Cost: ~280m 1998-2009 procurement period The PV90 Line of offshore patrol vessel is designed as a long-range high endurance maritime security vessel, capable of 3,500NM at 23 days. The PV90 has a hangar for small to medium naval helicopters. {GLaze Paragpah] ... The PV90 is part of a larger family with a larger corvette based around the design The Royal Karsvetian Navy operates 6 of such vessels under the "Proctor" Class