One of the ships with the rescue craft - known as ARRCs - in the davits.

Back in 2005 the four BP Jigsaw ships entered service. They were designed by Offshore Ship Designers against a pretty complex specification. They had to combine the capabilities of a platform ship and an ERRV (standby vessel), and in addition the standby capability consisted of two very high specification rescue craft. Initially there were endless problems. The rescue craft themselves suffered from structural problems as did the davits, hardly surprising considering the fact that the things weighed over 30 tonnes. In addition the vessel themselves proved to be difficult to handle and so had to have additional thrusters installed. At the time of writing (2016) the whole thing has been dumped and the ship have become standard - very large - PSVs.

 

TYPE: IMT 992 NAME: CALEDONIAN VANGUARD Photo: Vic Gibson
GENERAL PROPULSION CARGO CAPACITY 
Length OA 93.45m Engines 4 x Cat 6M25 Fuel 1434 m3
Breadth 22m BHP/kW 11200/8240 Pot water 1263 m3
DWT 4380 mt For'd Thrusters 2 x 1100 kW Mud 790 m3 
Deck area 1075 m2 Az Thruster 1 x 880 kW Base oil  
 Berths 46 Aft Aziprops 2 x  Brine  790 m3
Year built 2005 Joystick   Dry bulk   392 m3
Shipyard  Yantai Raffles DPII Converteam C Tank Cleaning  
Previous names  
Comments The ship carried two autonomous rescue vessels and is a 300 survivor standby vessel

 
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