The new Turbodrive 238 H.C. is now available on the market. The acronym H.C. means "Hydraulic Clutch", the most significant   exclusive feature of this model consisting in a multi disc hydraulic clutch, electrically controlled in order to engage and disengage the jet's impeller with engine idling. Another exclusive feature of all Castoldi units is the integrated gear box which, with its No. 18 available ratios, allows   the   perfect matching   to   the   engine   while   saving cost and weight of a marine transmission. Furthermore, the built-in gear box has the input shaft above the impeller shaft so allowing to install the engine close to the jet (through a special coupling kit available by Castoldi for most of the existing engines), the best solution to save space inside the boat for an easy installation. In the same time, the horizontal low placed impeller shaft permits a straight and flat duct which, lowering the center of thrust, increases manoeuvrability, stability and improves high speed efficiency. Other exclusive features of this drive are:

- The movable debris screen grid which ,operated after having disengaged the jet unit, performs the most efficacious anti clogging operation by rejecting any debris through the two stages opening of the profiled grid bars.

- The Castoldi concept "multi duct" reversing deflector   which develops approx. 70% of the forward bollard thrust.

- The "B.P.R.", an additional   fixed water   intake which   increases   the   thrust   at   low speed without affecting high speed performances. Particularly suited for heavy boats.

- The "T.T.J"., a revolutionary device, which reduces the boat's planning time.

- All oil lubricated bearings.

- The integrated water pick-up for engine cooling.

All   these   features   make   the "Turbodrive 238 - H.C." probably   the   most   complete, lightest and efficient water jet drive of its own class on the market, capable of even matching stern drives for high speed operation but with the greatest manoeuvrability also in single installation, reduced draft allowing shallow waters operations, the maximum active and passive safety and a greatly increased life with few maintenance requirement. "Turbodrive 238 - H.C." weights Kg. 110 only and it   can be matched   to   engines   up to 420 HP. It is ideally   suited to equip fast patrol and   pleasure boats typically in the 6-10 m. and 2-6 tons range in single or twin installation. The "Turbodrive 238 - H.C."   is    supplied    with     an    hydraulic     steering-helm,    an hydraulic, electrically controlled, reversing deflector with its own indicator and the electric control of the hydraulic clutch. All the rams and valves are placed inside the boat supported on the same water jet case for any easy and fast installation and simple maintenance.