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CTruk SWATH20

Small Waterplane Area Twin Hull

Designed as a comfortable and cost-effective means of transferring technicians to offshore wind farms, the SWATH20 limits motions to around a quarter of those of a conventional catamaran. With a dynamic ride control system to further reduce roll and pitch, wave height limits for smooth passenger transfer are radically increased. Low motions ensure the very best transfer height capability and CTruk’s interchangeable pod system makes the platform easily customisable for multiple applications and changing commercial demands.

Main Particulars


  • Length overall: 20m
  • Beam overall: 7.5m
  • Draft: 1.3m
  • Displacement: 34 tonnes
  • Hull material: Infused composite
  • Forward deck space: Up to 34m2
  • Aft deck space: Up to 10m2
  • Cruising/top speed: 20/24 knots

Main Features


  • Moveable wheelhouse
  • Multiple deck combination
  • Outside remote helm position
  • Single-handed MOB recovery system
  • CTruk flexible deck pod system (patented)
  • Volkorf bow (patent-applied)

Main Equipment


  • 2 x Cummins QSM11 marine engines
  • 
2 x Rolls-Royce Kamewa waterjets
  • 
Simrad electronics

  • Dynamic ride control system

  • Cummins Onan 9.5kW generator 
  • 
4,000 litre fuel capacity
  • 
500 litre fresh water capacity
  • 
Inverter/charger 3kVA

Classification Options


  • Structure to BV: | ✠ HULL Wind Farms Service Ship - S1 Sea Area 3
  • Full class to BV: | ✠ HULL • MACH Wind Farms Service Ship-S1 Area 3
  • 
MCA SCV Category 2