A range of specialist boat designs


A passion for creating boats

A varied range of boat designs from a wooden steam launch to a range of high speed assault craft for commercial & military operations

Rotork Mark 4

Development of existing model range, including Combat Support Boat 408 for US Army

Rotork Mark 5

Complete new design, which went on to win a Design Council Award & the Prince Philip Designers Prize, both in 1979, please note..


A wooden, coal fired, steam boat designed for Dr Alex Moulton using the Moulton steam plant

RTK Mark 5 VIP

Custom, one off craft

Floating Cockpit

Prototype cockpit for high speed deep V

Floating Deck

Prototype deck for Pacific 22

A range of boat designs for both business & pleasure uses

From 6 to 60 knots


  • Rotork Mark 5 base design
  • Custom aluminium superstructure
  • Special acoustic engine enclosures

Rotork Sea Truck Mark 5

  • Prize winning design of modular workboat
  • Shallow draft & high speed
  • Versions at 12 and 9 metres long

The marine work has been a minor part of the 125 Capoco design projects, but has covered a wide range of technology including propeller design

Alan Ponsford

Design Director

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