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BCTQ is at the forefront of design and development of software solutions specifically for the maritime sector. Our Specialist Software Solutions team has created a series of packages including:


BCTQ has developed a computational fluid dynamics package called BASIN for the analysis of generalised hydrodynamics problems. BASIN utilises a fully non-linear time-domain boundary element approach to calculate the motions & loads for one or more vessels. The method can be applied to a wide variety of problems, including:

  • Non-linear seakeeping in regular or irregular seas with or without forward speed
  • Wave resistance in flat water
  • Added resistance and added loading in waves
  • Interaction between multiple vessels


BCTQ writes, markets, supports and operates the industry leading manoeuvring simulator MATHMAN, which is used for the simulation of ship manoeuvring and track reconstruction. It is also used as a computerised towing tank for port and channel design studies and for collision and grounding risk studies.

The MATHMAN manoeuvring simulation package has been developed by BCTQ with particular emphasis on its use as a tool to assist in the investigation and reconstruction of collisions and groundings. MATHMAN allows consistent, comprehensive and accurate reconstruction of vessel tracks, including all external forces, such as wind and current, as well as an accurate representation of control input, such as engine and rudder orders. In addition to track reconstruction, the program also enables checking of the consistency of evidence, e.g. between a course recorder trace and log book, as well as the possibility of investigating potential avoidance manoeuvres and other "what if" scenarios. Expert evidence based on MATHMAN has been presented on numerous occasions.

BCTQ has worked with GRC Ltd to integrate MATHMAN as a design tool into GRC’s PARAMARINE naval architectural design package, which is used by the UK Ministry of Defence (MOD), amongst others. BCTQ has also developed TRIMAN, which is used by the MOD to predict manoeuvring characteristics for the MOD’s 'TRITON’ trimaran frigate project.


HYDAS - a fully integrated software suite for the analysis of intact and damage stability (including progressive flooding) longitudinal strength, motions and grounding which interfaces with other design and analysis tools. Probabilistic Damage Stability calculations can be undertaken for passenger and cargo ships and yachts using our
in-house HYDAS suite or NAPA.

Other specialist software systems include:

LOADCALC - a simple to use shipboard loading and stability system.

SALVCALC - a self contained PC loading and stability system, with the ability to analyse damage and grounding forces, suitable for ISM applications and with the ability to analyse grounding forces suitable for ISM applications.

EQUIMOOR - for static and dynamic analysis of ship mooring systems.

We also a have a number of proprietary codes, including:

ANSYS - a general purpose code for carrying out Finite Element Analysis investigations into the static, dynamic and non-linear behaviour of structures.

OSCAR and SCORES 2 - for investigating ship and offshore structure motions and hydrodynamic loadings.

3-D STUDIO - for the development of 3D computer animations, including realistic light and sound. This may be interfaced with MATHMAN to provide 'the view from the bridge’ or other animated reconstructions.

CRYSTAL BALL - for probabilistic analysis, using the Monte Carlo simulation method.

MATHCAD - a general symbolic solver permitting on screen manipulation of mathematical equations.

CAD - various CAD software packages are supported including NAPA, Rhino, Microstation and Autocad.

NAPA - for the analysis of intact and damage stability.

Probabilistic Damage Stability calculations can be undertaken for passenger and cargo ships and yachts using our
in-house HYDAS suite or NAPA.

22 May 2024     20:53



COVID-19 Update 27/03/2019

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COVID-19 Update

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Proud to have been involved with Red Funnel

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Range of Projects

Air Cushioned Barge - NCOC

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M.Y. Talitha G

Classic gentlemen’s yacht built in 1929
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T.S.M.V. Balmoral

Built in 1949 by J.I. Thornycroft & Company in Southampton, Balmoral is listed as part of the National Heritage Fleet
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P.S. Waverley

Built in 1946, Waverley is listed as part of the National Heritage Fleet
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T.S.S. Queen Mary

BCTQ advised the owner of this former Clyde triple screw turbine steamer
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S.S. Yavari

BCTQ provided the services of a naval architect/surveyor
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H.M.S. Warrior

BCTQ attended on board Oil Fuel Hulk C77 lying afloat at Pembroke Dock
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S.S. Great Britain

BCTQ conducted a full structural survey of this iron vessel
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55m ice-class expedition yacht built by Pendennis Shipyard
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71m diesel electric motor yacht
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78m Abeking and Rasmussen built motor yacht.
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115m Lurssen built motor yacht for worldwide cruising.
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119m innovative private motor yacht built at HDW Shipyard and suitable for world wide cruising.
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115m Explorer Yacht built by lloydwerft in Germany.
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162m Blohm & Voss built motor yacht with diesel electric propulsion and currently the world’s largest vessel intended for private use.
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Torpoint Ferries

Three 73m double ended Ro-Ro ferries providing a “floating bridge” service between Torpoint and Plymouth.
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Terra Marique

80m Multi-Purpose Diesel Electric Semi Submersible Pontoon buily by Damen Shipyard.
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Red Osprey / Red Falcon / Red Eagle

94m RoRo Ferry Fleet for Red Funnel in Southampton.
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39m Rapid Intervention Vessel, for response to any incident in the English Channel, built at the Remontowa Shipyard in Poland.
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Stavros S Niarchos and Prince William

Two 59m brigs designed for the Sail Training Association.
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Scillonian IV

79m RoRo Cargo & Passenger ferry.
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84m Multi Function Diesel Electric Buoy Handling Tender for Trinity House.
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James Clark Ross

99m Diesel-electric Antarctic Research Vessel, designed to operate in temperatures as low as minus 40°C.
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