By the early 1990s there was some incentive for the development of purpose built standby vessels, or as they were to be known ERRVs, due to the recommendations subsequent to the Piper Alpha disaster, and the almost universal criticism of the Silver Pit. As a result Amerada Hess, then operators of the Scott Field contracted with a shipowner to build and manage this vessel. Another, the trafalgar Guardian was built for Enterprise and operated by Tidewater. In their day they were an innovation.

TYPE: Seaguar		NAME: VOS GUARDIAN		PHOTO: Vic Gibson
GENERAL		PROPULSION		RESCUE EQUIP
Length OA	55.0 m	Engines	2 x Cat 3508TA	Survivors Capacity	300
Breadth	12.7 m	BHP/kW	1920/1410	FRC 1	15 man Norsafe
DWT	1036 t	For'd Thrusters	1 x 600 bhp	FRC 2	-
Deck area	-	Az Thrusters	-	Daughter Craft 1	MP 1000
		Az Prop	1	Daughter Craft 2	-
Year built	1994	Joystick	-	Dacon Scoop	Yes
Shipyard	Yorkshire Drydock	DP	-	Sealift	-
Previous names	Scott Guardian
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