delivered successfully, but the second, to be named Spirit of Portsmouth, was only partially constructed when the customer cancelled the order, and the unfinished hull remained at Abel's shipyard for many years. However, in 2016-17, the uncompleted hull was completed as a medical ferry for Vine Trust in South America, under the name Forth Hope. The last ferry built was the Clyde Clipper for Clyde Marine and delivered in July 2009. She is a 125gt catamaran of length and beam and able to carry up to 250 passengers. Powered is supplied by two Doosan diesel engines and the vessel has a speed of around . Survey Vessels In the late 1980s, Abels began to construct a series of survey vessels for the UK Environment Agency. Vigilance was the first of four similar vessels and delivered by Abels in 1990 for work in the Bristol Channel. The follow-on ships constructed were the Sea Vigil based on the South Coast, Coastal Guardian for the Mersey and Water Guardian, based on the North East Coast, but spending some time in the Bristol Channel while Plymouth University chartered the Vigilance. Ranging from 42 to 71gt and in length, they are ships operated by the Agency's National Marine Service. Their complement includes scientists and each are fitted for survey activities such as taking seabed samples, trawling and water sampling as methods to monitor the area's coastline, including use of Meteorological sea surface temperature equipment on a tow fish when required. Vessels built by Abels Shipbuilders Vessels built by Abels Shipbuilders in Bristol include: Maria McLoughlin (1981). steel tug. Sarah McLoughlin (1981). steel tug. Island Princess (1985). 60 seat passenger ferry. (1987). 104gt Ro-Ro vehicle and passenger ferry. Surta (1988). steam passenger vessel. Vigilance (1989). 42gt environmental survey vessel. Maid of the Forth (1989). 70gt 225-seat passenger ferry. Maid of the Islands (1989). 130-seat passenger ferry. Sea Vigil (1991). 55gt survey vessel. Avon Monarch (1991). 75-seat passenger vessel. Maid of the Lakeland’s (1991). 130-seat passenger ferry Coastal Guardian (1992). 74gt survey vessel. Water Guardian (1992). 51gt survey vessel. Sir William Pulteney (1993). 85-seat passenger ferry. Impulse (1994). 52gt steel pusher tug. Georgina (1995). motor boat. The Georgian (1995). motor boat. Lenie (1997). 121gt multi-purpose tug. PAD.42 to PAD.51 (1999). , aluminium-hulled Nigerian police launches. Maid of Poole (1999). 195-seat Passenger Ferry. Spirit of Gosport (2001). 300gt passenger ferry. Beauchamp (2001). floating classroom vessel. Spirit of Portsmouth