Sailing Yacht SEA BUNNY

Mechanical and Electrical

Sea Bunny's systems

Sea Bunny has a Volvo Penta main engine, generator, inverter, 2 wind generators,2 solar panels & watermaker supporting us



VOLVO PENTA MD22P 57hp (2001), MS25-A reduction gearbox with 8 degree down-angle (2006), shaft drive replaced with a similar ZF-Hurth ZF25MA in November 2008.

Major service, new starter motor 2013



Brunton Autoprop H6 self pitching rebladed 2006 on fitting the new gearbox.

Fixed blade propeller carried as spare



Three independent 12v battery banks. One battery of 90 A-Hrs (2014) dedicated to engine start and charged by an engine driven 60 A alternator. One bank of 570 A-Hrs (2015) Trojan gel batteries dedicated to domestic services charged by a Balmar 160A engine driven alternator (2010) through Balmar intelligent regulator, by inverter/charger and/or wind and solar generators. Third battery (2009) for generator starting, charged by auxiliary circuit on generator.

Linklite battery monitor 2011.



Victron 2000VA/80A, 2012, for for charging domestic battery and supplying 240V AC from battery when generator or shorepower are not available. 30A AC pass-through.

Shore power


220/240 V shore power circuit with galvanic isolation, earth leakage and overload protection.



Paguro 4000, 4 kVA powered by a Farymann single-cylinder Diesel engine 2013

 Mounted in a sound-reducing enclosure in the engine compartment.

Alternative (green) power

2 x Silentwind (2012 & 2015) wind generators.
2 x 135W Kyocera solar panels 2009. Additional 40 W solar panel 2001.
Tristar TS-MPPT-30 controller for solar panels

Cabin lighting


Main lighting by Alpenglow fluorescent lights, 2 intensity

LED reading lights all cabins

Various additional fluorescent and LED lights  

Operational lights


LED anchor light at masthead

Tricolour light

Steaming light

Side lights on pulpit

Stern light on gantry

LED cockpit light

LED boarding  light on gantry

Deck flood light

Compass and instrument lghting

Water heating


Engine calorifier replaced 2009. 220v immersion heater replaced 2015

Temperature control


Mikunu warm air system ducted to cabins and heads. Ducting renewed 2014.

8000 BTU/hr built-in air conditioner to main cabin 2009



Spectra DC system 60l/hr 2001.

Clark pump factory refurbished, new membrane & feed head pump 2016

Fresh water


Hot and cold pressurised water system (pump new 2006) to galley, heads and bathing shower.

Grey water pumps to forward heads and aftheads/galley 2015

Sea water


Pressurised sea water system piped to anchor locker for anchor and deck washdown.

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Updated from St George's, Bermuda 10 May 2017

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