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Sweet Molly

Looking ahead to our latest collaboration in Venice with the team from Classic Boats Venice and their beautiful boat from 1938,  ‘Sweet Molly’ we sat down with our own ‘Managing Partner’ Andreas Münster, to talk about this,  as well as the NBA. Well at least we tried to talk about the NBA regardless Andreas details Amperetta’s unique hybrid drive being used with Classic Boats Venice. See our interview below.


WHY AMPERETTA?

Amperetta means hybrid. Amperetta hybrid-drive (AHD) is not a side product of a company making god-knows-what, not a product stitched together from random parts. We live and breathe hybrid! Other than other systems, AHD is not just a part of a hybrid kit, which leaves vital system areas to be taken care of by the yard, but a comprehensive, fully integrated solution utilizing highest grade German automotive components – made to perform and last.


HOW ECO EFFICIENT IS THE HYBRID DRIVE?

In electric mode AHD is a zero-emission, nearly zero noise drive with an efficiency >90%. Electric propulsion is the best option at low speed, AHD is the best system out there – all is said. Even when the donor engine is engaged, surplus energy produced is harvested and stored in AHDs battery system for use with electric propulsion (or hotel services), thus, increasing the overall efficiency even when combustion engine is engaged. At higher speeds electric drive is not optimal, because weight/size of battery increases dramatically, cancelling out advantages of electric propulsion, so combustion engine (still) offers best option.


HOW LONG CAN YOU DRIVE IN ELECTRIC IN BOTH MODELS OF THE DRIVE?

Electric range is limited by capacity of battery cruising speed and shape/weight of vessel. Capacity of battery system can be tailored for application. Rule of thumb for 10m boat: Basic kit (10kWh) allows for roughly 3 hours of electric autonomy at 4kn. In Hybrid mode electric range benefits from recuperation whilst cruising with combustion engine engaged. Surplus electric power is harvested and stored for periods with electric propulsion engaged. A typical day-trip cycle can easily include twice the electric range offered by the nominal capacity of battery system or more, depending on travelling profile…


WHICH ENGINES CAN THE DRIVE WORK WITH?

Currently Volvo Penta D3/D4/D6 series are supported, with two other major engine suppliers in the pipeline for 2021


WHY IS THE ENGINE SO SILENT?

No extra gearbox, no belts or other additional components that cause noise (and reduce efficiency). Electric engine turns (only) at speed of shaft, not faster. High voltage permanent magnet electric engine allows for more powerful compact design – again no additional components needed when hooking up to gearbox/screw, which potentially cause noise. Additionally, electric engine is mounted in a sealed housing, reducing noise emission even further…


WHERE IS THE ENGINE BEING USED NOW?

Mostly recreational vessels, mono and dual hulls. Given the reliability and live cycle specs of components, work boats with high running hours are a natural fit.


DO YOU THINK THAT THIS DRIVE IS EASY TO OPERATE?

The easiest yet. Choose your drive mode from AHD helm-display and take off. During cruise no additional controls need to be used, the original throttle of the donor engine will do. Depending on drive mode, AHD will only harvest surplus energy (combustion mode), drive the vessel silently using the electric engine (electric mode) or choose the best propulsion option depending on power requirements/state of charge (hybrid mode).


WHAT MAKES THIS DRIVE DIFFERENT FROM OTHER HYBRID DRIVES?

Higher, fully digital integration level with donor-engine for seamless and easy operation. Easy operation for skipper. Compactness of hybrid module – more compact overall drivetrain – more space available to passengers. Turnkey-solution with all components from one source. Automotive components optimized for high reliability and compact design. Easy scalability of battery capacity to adjust for different applications.


 IF YOU ARE DRIVING ALONE WHAT DOES YOUR 10-SONG MIX PLAYLIST SONG SOUND LIKE?

ABBA – The day before you came

Leonard Cohen – Anthem

Pharrell Williams – Happy

Kings Singers – I’m yours / or maybe somewhat more upbeat: Pentatonix – Daft Punk

Alice Merton – No roots

Joe Cocker – Summer in The City

John Lennon - Imagine

The Beatles – Here comes the sun

Neil Diamond – Forever in Blue Jeans

ABBA – Move on


LAST, 2 DEBATES THET HAVE BEEN KILLING US, COKE VS PEPSI? AND WHO IS THE GOAT OF THE NBA?

I am a Pepsi man, sorry Coke fans around the world…NBA – I don’t play badminton.

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