Crew Transfer Vessels

12m Offshore DC/Nearshore CTV

Diverse Marine works with Chartwell Marine to produce pioneering daughter craft that are amongst the greenest in the industry, with inboard propulsion systems fitted with IMO Tier 3 exhaust after-treatment to reduce emissions. The Daughter Craft can serve as a nearshore CTV as well as an offshore daughter craft operating from an SOV/CSOV mothership in conjunction with a single point lift davit system. The design has been extensively tested using CFD model testing and tank testing to develop a highly efficient craft that can perform at a higher level than its peers, providing high levels of passenger comfort during passage with several motion softening features, along with a high bow with low propulsor that ensures class leading access levels.

Deployable to Shallow & Drying Projects 

Diverse Marine was selected to build the first of class vessel from a Chartwell Marine design for Commercial RIB Charters to meet the requirements of their client on the East Coast, UK. The integration of the vessel included a bespoke amphibious system that considered vessel weight, wheel sinkage, traction etc. Propulsion options can include diesel/sterndrive, diesel/waterjet or diesel outboard. 

Storm Class - offshore wind crew transfer vessel

The Diverse Marine Storm Class CTV has been developed using 20 years of experience of such craft in combination with designer, builder, multiple CTV operators, wind farm developers and prime contractors to meet O&M project requirements.

Extensive CFD has been carried out develop the hull form that incorporates an ultra-fine entry for excellent head sea performance and tower access but with high reserves of buoyancy above the main chine to provide for equally good following and stern quarter sea keeping performance.

Typhoon Class - offshore wind crew transfer vessel

The Diverse Marine Typhoon Class CTV has been developed using 20 years of experience of such craft in combination with designer, builder, multiple CTV operators, wind farm developers and prime contractors to meet O&M project requirements.

Extensive CFD has been carried out to develop the hull form that incorporates an ultra-fine entry for excellent head sea performance and tower access but with high reserves of buoyancy above the main chine to provide for equally good following and stern quarter sea-keeping performance.

Brevity Class - offshore wind crew transfer vessel

The Diverse Marine Brevity Class CTV is a pioneering crew transfer vessel design that refines the formula for offshore wind support.

Developed off the back of thirteen years of data and experience in offshore wind vessel design, alongside extensive dialogue and collaboration with CTV operators, wind farm owners and turbine manufacturers, the Diverse Marine Brevity responds directly to the needs of the end user.

Cyclone Class - offshore wind crew transfer vessel

Building on the proven capabilities of the Storm Class, the Cyclone Class will enhance onboard accommodation and welfare facilities, offering a new level of comfort and functionality for offshore operations. With an extended 29-metre hull, the Cyclone Class allows for increased internal volume, accommodating up to 6 cabins and 24 passengers.

Defiant Class - offshore wind crew transfer vessel

The Defiant Class LTSV has been designed to support the 1400 legacy turbines installed nearshore and typically working for ports with logistical challenges restricting the size and in some cases draft of the CTV’s required to support these assets. The Defiant Class provides a new build solution for these projects proving the latest technology, emissions compliance and passenger comforts. The highly efficient craft can perform at a higher level than its peers providing high levels of passenger comfort during passage with several motion softening features along with a high bow with low propulsor that ensures class leading access levels.

24m Chartwell - offshore crew transfer vessel

The Chartwell 24 vessel design has been developed from over ten years of offshore wind vessel design and experience.The vessel can accommodate 24 industrial personnel alongside 4 crew and will deliver the highest standards of safety performance, technical availability and ultimately ‘time on turbine’ for offshore wind technicians.With one of the largest foredecks on the market, enhancing her cargo-carrying capacity, the design has been optimised for safety, with designated walkways, handrails and safety sliding rails positioned for safe, repeatable crew transfer.

24m Chartwell Hybrid - offshore crew transfer vessel

The hybrid CPP version of the successful Chartwell 24 design features conventional Caterpillar diesel engines driving hybrid Servogear gearboxes with a Danfoss e-motor input enabling diesel or electric or electric boost to the shaft lines. In mode this offers silent, zero emissions operation for port operations and loitering coupled with excellent fuel efficiency from the CPP shaft lines and class leading bollard push or ‘push on’ capability.