Castoldi Water Jet Drives - Tender / Williams J...

Castoldi Water Jet Drives - Tender / Williams Jettender

Castoldi Water Jet Drives - Tender / Williams Jettender
Castoldi Water Jet Drives - Tender / Williams Jettender

Williams or Castoldi. This is a matter of faith among yacht owners!

We stock spare parts for all Castoldi / Williams jet drives and Tender



Inboard diesel and waterjet driven rigid inflatable boats

As specialists in water jet propulsion systems for over 45 years, Castoldi knows what it takes to design and manufacture the perfect hulls which allow Castoldi waterjet drives full scope for enhancing their great benefits.

In its own boatyard Castoldi carries out full manufacturing of the Jet Tenders, from developing and testing hull forms, to quality control checks during every productive process, all trough the use of state of the art materials

Jet Tenders consist of a range of rigid inflatable boats fitted with diesel engines, waterjet drives and the highest quality equipement available for best performing yacht tender duties.

Features include reduced weight and height (through electrically controlled, retractable helm or console), self-bailing cockpit even at standstill (except JT14 and JT15), a deck configuration walk-through from transom to bow, hulls specially designed for the waterjet drive propulsion, a disconnecting clutch (integrated into the jet unit) for a true boat holding position.

Jet Tenders can all travel, remaining stable and dry, at more than 30 knots in rough offshore waters, as well as in shallow waters. They can land on the beach and cross at speed sand and mud banks.

Jet Tenders do not have any exposed rotating parts or protrusions under the keel and are therefore safe for people in the water or on-board and able to safely cruise at night.

Manoeuvrability is superb. Jet Tenders manoeuvre better and faster than boats with traditional propulsion systems in closed spaces as they can use maximum power (and, therefore, maximum thrust) even at low speeds. They are capable of turning on their own axes and of stopping within a maximum space of 1,5-2 times their own length, to avoid impacts and collisions.




Why Williams

Williams Performance Tenders is the world’s leading jet tender specialist. An extensive model range covering both petrol and diesel engines has been developed by our dedicated team of engineers, boats which are capable of functioning as safe and practical tenders or fast and fun waterski boats all in one package. All our boats are fitted with jet drives – we don’t build any other type of tender, and this unique focus has given Williams the edge when it comes to product design and engineering.
Our purpose built facility in Oxfordshire is staffed by a dedicated team of professionals with a passion for the boats they are building. Each tender undergoes an on-water test procedure prior to dispatch, ensuring that every aspect of its construction is checked and meets the high standard set by Williams.
Williams works with over twenty major shipyards worldwide who specify Williams tenders for fitting aboard their yachts, an endorsement which has been won through consistent performance of product, supply and after sales care. By choosing a Williams tender for your new yacht you can be sure that you are in good company.

We supply all spare parts / accessories for Williams tenders and jet propulsion


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Castoldi waterjet Jet 03

The Castoldi waterjet unit type 03 is the smallest unit of the Castoldi range and is the suitable propulsion unit for small pleasure and work boats, having both semi-planning and planning hulls.
The easiness of installation, the very low maintenance required and the long life are the most important characteristics.
The water jet unit type Jet 03 can be coupled to diesel and petrol engines developing a power from 10 up to 60 HP ( depending on the r.p.m. )
The inspection to check the impeller or to clean the duct is very easy: it's possible to completely open the unit rotating the tail which is hinged to the jet main body.
The unit can be driven either directly by means of a tiller for the control of the steering and reversing deflectors and of an handle for the control of the throttle or by remote controls by means of the purposely developed and pratical Castoldi control systems.
Jet 03 casting is made of super tough light weight special aluminum alloy which is given the most sophisticated anti-corrosion finish possible being hard anodized up to 60 microns and becoming by this way very durable.
The installation of Jet 03 is the simplest one: the unit is mounted completely out of the transom of the boat. This allows the quickest installation ( only one hole through the transom ) gives the minimum in board room requirement and the option by easily adjusting the jet mounting, to vary and optimize the boat trim.

3,320.00 € *
In stock