TANKOA S501 - 50-meter series



This dream yacht has two souls. Choose between traditional and hybrid propulsion systems. Two unique specifications. Both fuel efficient and near silent. Cruise in tranquility. The timeless design is sleek and ingenious. The horizon is a luxury that the S501 gifts again and again. Glass bulwarks and fold-out balconies maximise the many uninterrupted views of water and landscape. The generous relaxation areas are wide open spaces that invite you to spread out, to roam, to share. Or relish your privacy. 

Handcrafted to the owner’s specifications, she is the most beautiful craft, a wonder of comfort and modern elegance, and just under 500 gross tons thanks to the aluminium hull.


Her superior engineering and hull design makes her the most efficient yacht on the market with lowest consumption you ever heard of.

The Hybrid Propulsion

In Diesel Electric Mode (DEM), two variable-speed generators feed the electric motors. With the main engines off, the S501 can achieve speeds up to 10.5 knots and fuel consumption of 12 litres per nautical mile. DEM saves fuel and limits noise. 

In Hybrid mode, one of the two main engine shafts generates the electrical power to run the second motor for propulsion and hotel needs. At 12 knots the yacht has a cruising range of 4000 nautical miles. In this mode the two diesel generators are turned off during navigation and the running hours per engine and per generator are dramatically reduced. 

In Booster Mode, both main engines and generators supply power to the two electric motors and feed the hotel loads. The yacht finds a top speed of 18 knots with no strain on the engines.

The Traditional Propulsion

The S501 is engineered for low consumption, long-range cruising and outstanding speed performance. The displacement hull features planing characteristics. With its optimised engine, this is a yacht that really moves. 

The S501 sails at a maximum speed of 18 knots using both main diesel engines for propulsion and one diesel generator to feed the hotel loads.

Main Technical Specs 

Length overall 49,99 mt (164 ft)
Beam 9,40 mt (30,80 ft)
Draft full loaded 2,40 mt (7,90 ft)
GRT < 500 GT
Displacement Max 391 tons
Classification Lloyds + MCA
Hull and superstructure in light alloy 5083

* complete data are available into the brochure

General Arrangement