The source for international yachting & marine news
GREENLINE 42, the silent cruise
- Ecology: H-Drive 6G patented by Greenline
- Zero noise: 48 hours of onboard service operation
- Hybrid system: Batteries recharged through energy recovery
- Autonomy : 10 solar panels
Greenline Yacht, the Slovenian shipyard recognized as the absolute pioneer of hybrid and ecological leisure navigation, has introduced the new Greenline 42, this model fits into the range between the classic Greenline 40 and the larger 45.
The exclusive H-Drive 6G patented system by Greenline interposes very powerful electric motors between the diesel engine and the propeller. This solution allows for silent maneuvers and speeds of up to 6.5 knots utilizing electric energy. The batteries are recharged through the recovery of energy lost by thermal engines during navigation, ensuring that the batteries are always charged, capable of providing up to 48 hours of onboard service operation without the use of generators or diesel engines.
The model under test is the version with 2 diesel engines Yanmar of 250 HP (latest generation common rail of 2.8 liters) that allow this yacht of 13.50m in length and 4.30m in width to reach a maximum speed of 25 knots, and maintain a cruising speed of 12 to 15 knots with absolutely reduced consumption thanks to the performing hull that characterizes all Greenline models.
Diesel Mode
Onboard, the construction quality of Greenline Yacht is evident, with a spacious and ergonomic dinette featuring a cozy sofa served by a table that can be lowered to create an additional bed, while on the opposite side there is a modular cabinet that integrates a retractable television.
The helm console is slightly raised, allowing for excellent visibility towards the bow and, thanks to large windows on the sides, navigation is greatly facilitated.
Descending three steps leads to the sleeping area, structured with two cabins: the owner’s cabin at the bow, equipped with a versatile double bed that can be converted into two V-shaped beds, and a second cabin on the left with separate single beds. A bathroom fully equipped with every comfort serves the area, while the shipyard offers various living configurations upon request.
Greenline 42, the sea trial
We leave the mooring without issues thanks to the maneuvering propellers, cross the channel to exit into open sea, respecting the speed limits, and appreciate the extreme quietness of the 2 Yanmar engines. Once outside the channel, we were able to test the GREENLINE 42 at various speeds, increasing the power of the engines and reaching a cruising speed of 15 knots, with instruments reading consumption of 26 l/h per engine, absolutely in line with 13-meter vessels equipped with these same engines. At this speed, the hull begins to plane, allowing for smooth and precise maneuverability, the use of flaps allows for a planing attitude even at medium speeds, thanks to the performing hull that Greenline adopts on all models. Having to give way to various water taxis navigating in the Venice lagoon, the extreme maneuverability was very useful and allowed us to navigate in sometimes very tight spaces.
Despite a wave of about 30 centimeters and the turns we made to understand how the hull handled the sea, the navigation was extremely pleasant: the hull design ensured a soft passage over the waves, without compromising speed and stability. The Greenline 42 combines extraordinarily comfortable living space with intuitive and light handling, all while ensuring exceptionally low consumption.
Data recorded during the test
| Engine RPM | Speed | Consumption per single engine |
| 750 | 2.3 Kn | 0.90 Liters |
| 1000 | 3.5 | 1.90 |
| 1500 | 6.1 | 4.70 |
| 1750 | 7.2 | 7.30 |
| 2000 | 8.0 | 10.30 |
| 2250 | 9.2 | 14.70 |
| 2500 | 10.7 | 19.70 |
| 2750 | 13.3 | 23.6 |
| 3000 | 16.0 | 28.5 |
| 3250 | 18.0 | 35.30 |
| 3500 | 20.6 | 43.6 |
| 3750 | 23.7 | 51.7 |
| 3830 max RPM | 24.2 | 52.7 |
GREENLINE 42 – Technical specifications
Overall length: 13.50 m
Maximum beam: 4.30 m
Draft (unloaded): 0.64 m
Displacement (unloaded): 9,354 kg
Fuel capacity: 700 l
Water capacity: 400 l
Layout versions: 3 cabins
Bathrooms: 1 + 1
CE category: B
Design: Marco Casali – Too Design
ENGINES
Diesel engines
• 2 × Yanmar 4LV250 – 250 HP
• Maximum speed: 25 knots
Hybrid option
• 2 × Yanmar 250 HP
• 2 × electric motors/generators (diesel mode) – maximum speed: 6.5 knots
• Up to 6 lithium batteries of 11 kWh
SOLAR SYSTEM
• 10 solar panels
• Total power: 4.5 kW
SYSTEMS
• Greenline App control system with monitoring of energy, tanks, solar system, and vessel position
