Incat Crowther

Incat Crowther is an Australian Company, headquartered in Belrose, a suburb of Sydney specializing in Marine engineering design. Incat Crowther has offices in Lafayette, Louisiana, United States and Winchester, UK.

Incat Crowther
Proprietary limited company
HeadquartersSydney, New South Wales
ProductsShip Design - monohull, catamaran and trimaran

The company has a diverse product portfolio of designs for monohull, catamaran and trimaran vessels with a composite, aluminium and steel construction for a range of sectors, including commercial, recreational, military and passenger.


The company was created from a merger of Incat Designs - Sydney and Crowther Designs in 2005.[2]

Crowther Design founder Lock Crowther had a history in catamaran, trimaran and commercial vessel design.

Incat Designs (Sydney, formed 1988) founder Philip Hercus[3] (1992 AGM Michell medal recipient from the Institution of Engineers, Australia) had a history in passenger vessel catamaran design.

In 1977[4]), he formed a partnership, namely International Catamaran Pty Ltd designing and building catamarans in Tasmania. This combination made significant advances in fast powered catamaran technology culminating in the wave piercing catamarans.

Early in 1988, the shipyard partnership was mutually terminated and a design-only company, International Catamaran Designs Pty Ltd (Incat Designs - Sydney) was formed as part of the Hercus Marine Group. The other partner Robert Clifford then commenced designing and building under a new company, Incat Tasmania Pty Ltd.

Philip Hercus and Robert Clifford received the Order of Australia (AO[5]) in 1995 for service to the shipbuilding industry.

Both merging companies have had long partnerships with the following shipyards: Gladding-Hearn Shipbuilding, Richardson Devine Marine, Nichols Bros, Gulfcraft, Cheoy Lee Shipyards, Aluminium Marine, Kvichak Marine and NQEA Australia.

Later partnerships have emerged with: Arpoador Engenharia, Astilleros Armon, ETP Engenharia Ltda., Incat, PT Caputra Mitra Sejati Shipyard, Veecraft Marine

Worldwide, over 550 vessels built to Incat Crowther designs have been delivered.[6]


Incat Crowther designed vessels operate in the following countries:

  Australia   Azerbaijan   Angola   Brazil   Brunei   Cocos Islands   China   Honduras   Hong Kong   Indonesia   Japan   Mexico   New Zealand   Nigeria   Philippines   Russia   Seychelles   Singapore   Tanzania   Thailand   United Kingdom   USA


A world waterskiing record of 114 Skiers by the Horsehead Water Ski Club on 28 March 2010 was set utilizing the vessel Eagle.[7]

This record was again broken utilizing the Eagle on 27 January 2012[8] with 145 skiers making the nautical mile journey. [9]


  1. ^ "INCAT CROWTHER PTY LIMITED ACN 104 658 791". ASIC. Retrieved 12 July 2015.
  2. ^ "Incat Designs (Sydney) and Crowther Designs merge". Retrieved 12 July 2015.
  3. ^ "1992 AGM Michell Medal - Philip Hercus". Engineers Australia. Retrieved 12 July 2015.
  4. ^ "History". Incat. Archived from the original on 5 October 2013. Retrieved 12 July 2015.
  5. ^ "It's an Honour". Australian Government. Retrieved 12 July 2015.
  6. ^ "Incat Crowther marks 500-vessel milestone". Marine Log. 26 October 2017. Retrieved 18 November 2017.
  7. ^ "Our Boat". Retrieved 6 July 2015.
  8. ^ [dead link]"World Water Ski Record". World Heritage Cruises. Archived from the original on 5 July 2015. Retrieved 6 July 2015.
  9. ^ "Classic Cheoy Lee". Retrieved 18 September 2020.

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