SMIT Angola Testing Fi-Fi Equipment in Capetown, South Africa
RAmpage Class
Offshore Support Tugs
The RAmpage Class of Offshore Support Tug designs were developed by Robert Allan Ltd. to address a perceived gap
in the market for high-performance towing and anchor-handling tugs for critical offshore terminal and oil-field support
duties. Filling a gap between a full Offshore Supply Vessel and a harbour/coastal tug, in the size range from 45 to 65
metres, RAmpage Class tugs are designed to be hard-working and reliable, able to maintain station in extreme ocean
conditions, with enhanced manoeuvring and sea-keeping capabilities. With compact dimensions and high power, they
are capable of performing the types of duties expected of vessels at both extremes of the spectrum used in this service,
namely everything from ship-handling to ocean towing and bulk cargo supply, but with an emphasis on anchor-handling
and terminal support/towing and cargo transfer duties.
The RAmpage Class tugs are classified initially according to their length, then by the type of propeller system; eg.“Z”
(for Z-drive) - for those situations where manoeuvring and positioning control is of paramount importance as in DP
operations, or “T” (for Twin-screw) - typically with nozzles and with lateral thrusters, offered for more conventional
applications, especially where maximum Bollard Pull (BP) is required, and long-distance towing is more likely. And finally
by the type of powering system, either; “–M” for Diesel-Mechanical, or “–E” for Diesel-Electric propulsion.
Hence a typical vessel designation would be RAmpage 5000 Z-M for a diesel mechanical z-drive version.
www.ral.ca
AOS Power
RAmpage 4500
Offshore Support Tugs
Dimensions
Length, overall
Beam, moulded
Depth moulded (hull)
Design draft, to USK
Loadline draft
- 45.00 m
- 15.00 m
- 6.75 m
- 4.60 m
- 5.55 m
Performance
Bollard Pull, ahead
- 70 tonnes at 100% MCR
Capacities
Fuel oil
Potable water
Lube oil
Hydraulic oil
Foam
Deck cargo
Maximum DWT
- 525 m³
- 115 m³
- 14 m³
3 m³
- 20 m³
- 160 tonnes
- 1000 tonnes
Accommodation
Single cabins
Double cabins
Quad cabins
Total complement
-5
-4
-3
- 25 persons
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Bourbon Rhode operating off West Africa
RAmpage 5000
Offshore Support Tugs
Dimensions
Length, overall
Beam, moulded
Depth, moulded
Draft, maximum
Performance
Bollard pull, ahead
Bollard pull, astern
Free running speed,
ahead
- 49.50 m
- 15.00 m
- 6.75 m
- 6.40 m
- 100 tonnes
- 85 tonnes
- 13.5 knots
Accommodation
Single cabins
Double cabins
Total complement
-7
-7
- 21 persons
Capacities
Fuel oil
Fresh water
Foam
Dispersant
Deck cargo
- 550 m³
- 75 m³
- 25 m³
- 25 m³
- 200 tonnes
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RAmpage Technical Specifications
Deck Machinery
Ground tackle
- per Class requirements
Capstan winch
- hydraulic, 10 tonnes at 10 m/min.
Hawser winch
- hydraulic, two independent drums, 600 m of 64 mm wire each, 250 tonne static brake, 35 tonne line pull, line speed 0-45 m/min., two cable lifters, two warping heads
Towing winch
- hydraulic, two independent drums in waterfall configuration, 1,000 m of 64 mm wire each, 350 tonne static brake, 70 tonne line pull, line speed 0-50 m/min., two rig chain cable lifters
Tugger winch
- hydraulic, 200 m of 22 mm wire, 10 tonne line pull, line speed 0-20 m/min., 15 tonne
brake
Pennant reel
- hydraulic, 200 m of 64 mm wire
Tow pins/shark’s jaw
- electro-hydraulic, one set of each 350 tonne rating
Stern roller
- 4.5 m long, 2.2 m barrel, tapered ends
Tow hook
- 120 tonne SWL radial arm type
Deck crane
- electro-hydraulic, extending boom type, 10 tonne at 12 m reach
Domestic Systems
Heating and air conditioning
- in accordance with ISO 7547-1985 (E) Air-conditioning and ventilation of accom
modation spaces onboard ships-design conditions and basis of calculations
Machinery
Main engines
Z-drives
Bow thruster
Generators
Fuel system
Ballast system
Dispersant system
- 2 x 2,970 kW, Deutz, MaK or Wärtsilä medium speed diesel engines
- controllable pitch, Schottel SRP 3030 or LIPS CS300
- 450 kW CPP electric motor driven
- 3 x 500 kW, plus 1 x 125 kW emergency/harbour genset
- 100 m³/hour cargo transfer pump, 15 m³/hour ship’s fuel transfer pump, 5 m³/hour fuel oil purifier
- 100 m³/hour pump
- 6 m³/hour pump with 2 x 6 m spray booms
Navigation Aids
Magnetic compass
Autopilot
Depth sounder
Radar
GMDSS
chart plotter, radar, DGPS
Signalling equipment
Communication equipment
- binnacle style
- Furuno Autonav or equal, integrated with Z-drive controls
- Furuno FE-700 or equal
- Furuno FR-1510 Mk. 3 or equal, 2 m antenna
- Zone 3 system (100 miles offshore), Furuno Navnet system or equal complete with
- air operated whistle and bell per COLREGS, EPIRB
- intercom system, sound powered telephone (wheelhouse to engine room)
- 2 x VHF radio telephones, Furuno FM-8500 or equal
- 2 x portable VHF’s, Furuno IC-GM 1300 or equal
- 1 x SSB radio, Furuno FS-1562-15 or equal
Seaways 20 on Trials off Singapore (2011)
RAmpage 5500
Offshore Support Tugs
Dimensions
Length, overall
Beam, maximum
Depth, moulded
Draft, loadline
- 55.00 m
- 15.00 m
- 7.33 m
- 5.80 m
Performance
Bollard pull, ahead
- 100 tonnes
Capacities
Fuel oil
Potable water
Drill water
Recovered oil
Lube oil
Foam
Disperasnt
- 580 m³
- 117 m³
- 553 m³
- 250 m³
- 10 m³
- 30 m³
- 30 m³
Deck cargo
DTW
- 200 tonnes
- 1100 tonnes
Accommodation
Single cabins
Double cabins
Four person cabins
Total complement
-4
-9
-2
- 30 persons
www.ral.ca