New saildrive prop
GORI Propeller has introduced its three-blade folding propeller designed to suit the ZF SD15 saildrive. Key features of the propeller include a low drag, the same pitch in forward and reverse as the blades pivot 180 degrees and the same pitch
in forward and reverse for improved stopping. The propeller sizes range from 22 inches to 26 inches in diameter, available in the standard version with overdrive, and the single pitch version.
“We have seen an increase in customers choosing saildrive units over the traditional shaft drives,” said Lars Østergaard, senior vice president sales for GORI Propeller. “We have now evolved our popular three-blade propeller so those with a saildrive unit can reap the benefits.”
NEW PRODUCTS New battery-powered air con
A revolution in marine air conditioning has begun with the launch of battery-powered units that can run from direct current (DC) alone. A boat’s batteries provide DC energy to a variety of onboard devices like lights and electronics. Typically, however, high power appliances like air conditioners often still require alternating current from shore power, or the constant use of a generator.
The battery charger uses either shore power whilst at dock or engine power through an alternator whilst at sea. Li-ion batteries provide high density storage of this energy which is then used to power the 12V air conditioning unit. The system is especially well suited to smaller boats, both power and sail, which don’t already have a generator.
A new fuel sender adaptor from Oceanic Systems
The 3130 Adaptor aids boat builders who want to avoid multiple senders in each fuel tank. The 3130 NMEA2000 Fuel Sender to Resistive Output Adaptor by Oceanic Systems, accurately shows fuel levels on Volvo and other MFD’s from a single sender.
Oceanic Systems said that the adaptor connects from the NMEA2000 network to the resistive input connection on the engine ECU. The fuel levels show identically on both displays without needing a second resistive fuel sender in the tank.
The company designed the adaptor at the request of a number of boat builders who wanted to avoid multiple senders in each fuel tank and make a vessel’s fuel system more reliable at a lower cost.
Mabru’s 12V heat pump range comprises three models with cooling capacities ranging from 3,500 btu to 12,500 btu. Each has a 70/30 CuNi condenser and can run for up to four hours on a single 28 LBS, MPS 31 series lithium battery.
Balmar unveils new Alternator Protection Module
DC charging solutions specialist Balmar has designed a new low-cost, high-value Alternator Protection Module, offering surge protection. Balmar APM devices can be used to protect all alternator brands, excelling in both short duration and longer duration spikes where other products fail, the company claims.
Mounted on the rear of any alternator, the Balmar APM is designed to absorb voltage and current spikes that commonly occur in many onboard electrical distribution systems from intermittent connections, disconnects and over-voltage events.
Lithium battery adoption has introduced a new problem if a battery disconnects due to an internal fault or issue. A battery-initiated disconnect during charging can induce a voltage surge which will damage the alternator’s rectifier diodes or internal regulator and render the unit inoperable.
The Report • September 2022 • Issue 101 | 125
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