As a vendor we have converted about 30 Catalina's with good success. They are the most converted boats due to their popularity, motor advantages, and cost. This is what I see with your boat and applying modest range and speeds needs:
This is the data on the boat:
Hull Type: Fin w/spade rudder
Rig Type: Masthead Sloop
LOA: 29.92' / 9.12m
LWL: 25.00' / 7.62m
Beam: 10.83' / 3.30m
Displacement: 10200 lbs./ 4627 kgs.
Ballast: 4250 lbs. / 1928 kgs.
Observations:
A 48v 10.0kW motor is very adequate for the boat. The system will push your boat with authority. With a 14.4kW battery bank you will see a 22NM range at 4kts (larger will give you greater range). We also recommend venting the compact motor compartment as their is some heat build up in that small compartment.
A common way to Charge batteries and extend range is to use a suitcase generator and to augment the batterycharging. Solar is appropriate to maintain the 48v battery pack and to top off the charge. The larger the battery pack the larger the solar array would be required. Fortunately the Catalina 30 has room for a sizable array above the cockpit.
10.0kW Speed & Power
Kts Amps Watts
2.5 10 480
3.2 20 960
4.0 40 1920
5.1 80 3840
5.5 100 4800
5.8 120 5760
6.4 160 7680
6.9 190 9120
Hull speed 6.70
Mike
Electric Yachts of Southern California
Posted by: mike@electricyachtssocal.com
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