Lynn Rival - Mechanical and electrical systems

Rival 38A, designed by Peter Brett

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Electrical - batteries and charging

All wiring in generously sized tinned boat cable (2012)

Batteries: Domestic bank - 2 nos. Lifeline GPL31 105Ah (2012) [room for one more] Starter - 1 No AD Plus 575.18 95Ah (2014) 2 nos. isolation switches and fuses
Alternators: 2 nos. engine mounted 60A (1 Lucas, 1 Valeo, both 2012), each with Sterling advanced regulator with temperature sensors.
Shore power: Sterling ProDigital 40 Amp 4 stage switch mode charger/ power pack (2005)
Solar: 2 nos. Solar Innova SI-ESF-M125 series 100W panels with Victron Blue Solar MPPT 75/15 controller (all 2016)
Wind: Rutland 613 turbine with Rutland HRDX pwm controller (2007)
Monitoring and bank control: NASA BM1 and Merlin Smartgauge/Smartbank (2012)

Electrical - shorepower

Connection: Marinco 250V 16A deck inlet (2012)
Isolation: Consumer unit with both poles switched, galvanic isolator
Distribution: 2 nos. switched socket outlets (UK 13A), polarity indication

Electrical - lighting and small power

All wiring in Ancor tinned boat cable (2012)

Navigation lights: Aquasignal LED tri/anchor, port, starboard and stern lights Aquasignal incandescent steaming light
Internal: LED lights throughout, including separate red lamps in heads, galley and nav statiom (two circuits) DC sockets in saloon, nav station and aft cabin (two circuits)
External: Hella LED deck floodlight Two waterproof sockets in cockpit for lights/small power.

Plumbing - fresh water

Water heater: 15 litre calorifier (2003), with immersion heater, plumbed into engine fresh water cooling system.
Pressurised: Parmax 4 pump and accumulators under sink Hot and cold to galley and aft head, cold only to for'ard head Drinking water via Nature-Pure sub-micron filter to separate tap at galley
Hand: Whale hand pump at galley
Desalinator: Katadyn PowerSurvivor 40E (2007), plumbed in to galley inlet and outlet

Plumbing - salt water

Hand: Whale hand pump at galley
Washdown: Parmax 3 pump in for'ard head. Hose outlet in anchor well

Plumbing - drainage

Deck: 2 scuppers each side, built into hull, discharge below waterline
Cockpit: 2 drains discharge to seacocks below aft cabin berths
Shower bilges: 2 nos. Rule 360 electric pumps
Main bilge: Jabsco 50880 electric pump Henderson V hand pump
Emergency: Rule 2000 electric pump (2000gph nominal)
Sewerage: In each head a Lavac/Henderson V pump discharges into a plastic holding tank at high level under deck. Discharge from tanks via seacocks by gravity


Installation: Gas locker contains two Camping Gaz cylinders with manual changeover valve and marine regulator (2012). (Locker will take two Calor 4.6kg or 5kg cylinders from many countries) Rigid pipe to galley area, tap and flex hose to cooker
Cooker: Plastimo Neptune 2500 with two burner hob, oven and grill (2007)


System: Isotherm 3200 ASU SP system - self-pumping water cooled with automatic speed up (2002)

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