The XPM78 hull length is 23.8 m, and 5.13 m wide, plus 1.3 m draft with an air draft of 6.4 m / 21’.



The net alloy weight estimate is 16 tonnes, compared to 8.2 tonnes for the LRC65. The displacement will be 41 tonnes (half tanks).
The water tanks hold 7,000 liters (1,850 gals), and the fuel tanks hold 14,000 liters (3,700 gals).

Sailing at 9 knots, the projected range is 7,000+ nm (20% reserve). Her top speed is 15 knots.
XPM78-02 is built to the MCA category 0 Code of Practice (MGN 280 <24 m, unrestricted service, CE).

The max angle of positive stability is 180 degrees.

The XPM78 structure is immensely strong. She is stiffened with a 25 mm aluminum keel bar running from bow to transom.

The hull bottom panels are 15, and 12 mm thick, and the hull above the waterline is 10 and 6 mm thick.

Most of the hull below the waterline comprises integrated fuel and water tankage with three watertight compartments making for a double bottom.
Substantial grounding plates to each shaft skeg.

The design holds ten aluminum deck hatches with 16 mm laminated glass and two access hatches for the forepeak and engine room.

The XPM78-02 layout shows a master cabin with an ensuite bathroom in the foreship.


The guest cabins downstairs either comprise twins or a double bed. They also have ensuite bathrooms, or they share a bathroom in another layout.


The engine room/tech space is quite extensive. Access to this space is from the cockpit.

Standard house 3-cabin single engine

The twin-engine XPM78 uses two 4045 AFM85 John Deere M1 continuous rated 120 kW @ 2,300 rpm and 5050 twin disc reduction gearboxes with a ratio of 2.5:1 and a Brunton auto prop propellor diameter of 750 mm.

The XPM78-02 will get two 30 kW @ 1,000 rpm Praxis high voltage DC motors, generating 96 kW charge power at 2,300 rpm.

The independently operating hydraulic twin rudder systems are from Wills Ridley needed for the dynamic positioning (DP) function.

The bow thruster is from SidePower, rated 12 kW, and proportionally controlled.

The engine room houses two Praxis 120 kW LiPO battery banks with high-power liquid-cooled Praxis inverters.

The engine room has a SeaFire automated fire suppression with Praxis detection and SW Fire suppression.

The solar panel sizes are dimensioned to the deck space available, which adds up to a yield of 8 kWh with Victron MPPT controllers to feed the solar power to the auxiliary battery bank for the hotel loads.


XPM78-02 gets two DMS zero-speed, foldable stabilizing rotors. Active fin or Seakeeper or Quick gyro stabilization can be fitted as well.

All systems, including the navigational systems and machinery such as the Furuno radar, GPS, and compass, can be controlled and monitored using the Praxis integrated glass bridge setup with DP-ability.

The potable water equipment comprises a Delfin water maker, a Kabola heater, and a Webasto calorifier.
The HVAC system is from Webasto, containing a chiller and air handlers.

The helm station and flybridge use SHOX multi-adjust and shock-mitigating chairs.


The tender lift crane is a lightweight carbon marine crane.