Sailing Yacht SEA BUNNY


Radios, satellite equipment, navigation and instrumentation

Sea Bunny carries SSB and VHF radios, Inmarsat C and full navigational instrumentation.

Instrumentation & navigation equipment (main systems)


B & G Hydra wind speed, wind direction(updated 2001, 2010)
Furuno GP32 GPS 2003
Raymarine DSM30 with tridata transducer for depth (fishfinder), speed/log and water temperature 2012.
Raymarine 18" digital radome 2011
Raymarine AIS650 Class B AIS transceiver (2016) Silent mode activated from switch or chart plotter 2011
Raymarine E120W chart plotter 2011 with Navionics Gold Asia, Africa and S America charts
Raymarine Evolution autopilot with P70 control head and EV1 sensor (also provides fast heading data to chartplotter). Linear drive unit to steering quadrant independently of steering cables 2014

Main Systems integration


GPS, B&G interfaced to E120W via Actisense NMEA multiplexer
GPS linked to Yeoman plotter and to VHF DSC via NMEA
Radome and DSM30 linked to E120W via Raymarine Seatalk HS multiplexer and network
Autohelm and AIS linked to and controlled from E120W via Seatalk  NG bus

Conventional systems


Suunto D-135 steerring conmpass in pedestal replaced 2012 (may be the last produced)
Kestral hand-held wind indicator
Charts for ocean passages and most landfalls and coastal passages (mostly UKHO)
Plotting instruments
Sextant, current nautical almanac and NP401 sight reduction tables

Backup systems


Magellan 320 handheld GPS 2001
Autohelm 100 tiller pilot as spare (drives via Aries vane gear)
2 iPads with built-in GPS and with Navionics charting application forAsia/Africa and South America/Caribbean
PCs with charting applications
Autohelm 300 with 6000+ control head retained as spare (drive unit 2001, serviced 2012) with linked switches.



Icom IC-MC501 EURO (2001) marine band VHF transceiver with cockpit speaker and Icom DS-100 DSC controller linked to GPS
iCom waterproof hand held VHF transceiver (2012)
Icom IC-M710 marine SSB MF/HF transceiver(2001) with cockpit speaker and fax demodulator
Thrane & Thrane TT-3022D Inmarsat-C transceiver (2001) with integral GPS
Iridium GO (2015 replaced 2016) satellite system giving slow-speed email, weather and voice  capability
Furuno Navtex receiver (2001) - (Not much use in S Pacific or Australia- no broadcasts!)
Weather fax software on PC, sourced from SSB using fax demodulator, or by email via Iridium GO.
Predictwind weather routing software

Computers and television


3 laptop computers, linked by wireless and/or cabled network

Media centre

HD digital TV, also used as computer monitor

Internet access when available in port through WiFi or 3G/GPRS mobile networks

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Updated on passage Cape Town to St Helena 27 March 2016

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