1993 Ranger seismic survey

description this 254’ vessel was designed by ulstein international as and was built by ulstein verft as. the ut 743 design was developed in accordance with the demanding requirements for silent operation at high capacity production. the vessel features a compact and efficient layout, providing a comprehensive arrangement of mechanical and electronic seismic outfitting, and a highly flexible, redundant and powerful propulsion and machinery package. the vessel is built to det norske veritas class + a1, ice-c. e0, heldk., and to international rules and regulations as applicable for the subject type of vessel. further the vessel satisfies imo res. a 468 (xii) as a general maximum noise level in laboratories and related areas. special consideration was taken from design stage and throughout the building program in order to minimize hydro-acoustic noise generated by the vessel. all major rotating machinery installations are resiliently mounted, and vibration characteristics of the steel structure and hull is made without interference from machinery and propulsion plant. general information builder: ulstein verft as country built: norway year built: 1993 classification: dnv-gl class notation: 1a1 eo helideck ice (c) main dimensions length over all: 78.0 m length between p.p.: 67.7 m breadth, moulded: 17.0 m depth main deck: 7.6 m design draught: 5.4 m scantling draught: 5.9 m tonnage & capacities gross tonnage (1969): 3,700 ton itc gross tons: 69 regulatory net tonnage: 1,076 ton deadweight: 2,925 ton fuel oil (ex.sys.tks.) approx.: 1,400 m3 wb approx.: 850 m3 fw approx.: 220 m3 cable oil, clean oil: 20 m3 cable oil, dirty oil: 20m3 work deck area: : (8000 sq.ft) 740 m2 recording room area: 200 m2 helideck as 332 super pumpa. caa/dnv accommodation accommodation 56 persons in total, of which: 18 x one-man cabins 18 x two-man cabins 1 x two-bed hospital performance trial speed: 15.6 knots design pull @ 5 kn: 30 tons max. pull @ 5 kn: 50 tons machinery main engines: 2 x bergen diesel, bd 32 m& 3300 bhp each at 750 rpm. propulsion: ulstein propeller: twin screw propulsion: 2 x 1500 agsc controllable pitch propulsion plants, each with: low noise, 4-bladed secwed cp propeller, driven through a reduction gearbox with two-speed pto for shaft generator. bow thruster: ulstein propeller, bow thruster: 150 tv, 590 kw/800 hp, el.driven. rudders: ulstein high lift rudders: 2 off shaft generator: 2 x 2000 kva, 450 v, 60 hz aux.generator: 1 x 1338 kva, 450 v, 60 hz, driven by one caterpiller 3512 ta, diesel engine, rated at 1125 hp at 1800 rpm clean power: 2 x 73,6 kva, 208 v, 60 hz, scfm, 2000 psi, driven by caterpillar 3516 diesel engine. life boats: 2 x 48 persons enclosed. life rafts: as per solas regulations mob boat: 1 x seabear 23, inboard diesel. davit deployed. work boat: 1 x seabear 23, inboard diesel davit deployed. windlass: norwinch type av-33/38-36 k3 ulstein maritime electronics: switch boards. electronic remote control system main propeller (procon) joystick control system (poscon) electronic remote control system bow thruster (sitcon) bridge control consoles engine room console starters (for el.motors) electric test board engine room telegrahp microprocessor based alarm system with dead man system and printers) electronic equipment radar: furuno far-2822/xband, arpa - 120 nm ranger x-band (3 cm), arpa, 72 miles radar: furuno far 2830s, sband arpa-96 nm range innmarsat: jrc jue 45a mkii voice/telex/fax radio: skanti trp 8750 duplex ssb mf/hf, 750 watt. to gmdss requirements radio telex system: thrane & thrane tt3200 sailor rt2047 radiotelphone, simlpex and duplex operation vhf radiotelephone: skanti trp 3000 simplex/semiduplex skanti tr6102 areonautical am/vhf skanti dsc vhf radio, tu 3000/xh 5131 ships navigation: gyrocompass: robertson rgc 11 ecdis: robertson disc navigation system ecdis auto pilot: robertson ap9 mkii autopilot satelite receiver: furuno fsn-50 transit satelite receiver furuno gp500 gps satelite receiver loran c navigator: furuno lc 90 mkii direction finder: furuno fd 527 vhf direction finder jmc mf/hf direction finder, dr-230 echo sounder: furuno fe 680 - range to 2100 meters weather facsimile: furuno fax 208a electronmagnetic log: ben marine inmarsat: thrane & thrane standard c (telex) system tt 3000 c.