Ask any superyacht Captain what he looks for in an outboard motor and you can be sure that in his list of “top 5 must haves” the words diesel and torque will get a mention.
Constantly looking for innovative ideas, EAMS the French based supplier of tenders and jet skis has begun to market such a device from Yanmar
The first outboard, Dtorque Turbo Diesel sets a new benchmark in diesel engineering, especially for outboard motors.
It is:
- The first Turbo Diesel Outboard with dual crankshaft
- Solas (MOB) certified
- Durable and reliable
- Low noise and vibration free
It offers;
- High Torque at low RPM
- Fuel economy and range
Its 800crn3 twin-cylinder aluminium power head delivers a lusty 50hp at the propeller shaft. But what’s more remarkable is its torque output: Peaking at 111Nm at 2,500rpm, that’s more than the best-performing 70hp fuel injected four-stroke gasoline outboards on the market today.
This gives the Dtorque exceptional lugging ability as well as the ability to get onto the plane quickly, and both with modest fuel consumption (10 to 12 litres per hour).
The innovation is its dual counter-rotating crankshaft design: By generating opposite forces, the two shafts cancel out most of the vibrations around the steering axis that would otherwise make such a small and powerful twin-cylinder diesel outboard hard to handle.
The compact, remarkably smooth and quiet Dtorque 111 is designed to revolutionise the Superyacht tender market where its expected lifespan of well over 10,000 hours at least doubles that of any comparable outboard gasoline engine.
To create the Dtorque 111 the German developer and manufacturer Neander deconstructed conventional small-diesel engineering to first principles. The result is a two-cylinder common-rail turbo charged diesel engine, using a unique system of dual counter-rotating crankshafts in an aluminum block, which dramatically reduces the vibration levels that a conventional small two-cylinder diesel engine would normally generate. This technology with a patented ‘Spaceball’ design not only achieves less vibration but also less noise, lighter boat handling and less stress on the engine.