Capt. Len,
Thought I would answer you note in the user forum.
This is the data on the boat:
Hull Type: Centerboard Dinghy
Rig Type: Fractional Sloop
LOA: 18.00' / 5.49m
LWL: 17.00' / 5.18m
Beam: 6.25' / 1.91m
Disp. 1050 lbs./ 476 kgs.
This is a speed and power table that I modified for your light displacement:
Speed & Power
Kts Amps Watts
1.9 4 192
2.9 6 288
3.9 10 480
4.9 20 960 you will reach hull speed at about 1200 watts
6.2 40 1920 You would see adequate reserve power with a 2kW motor
Hull speed 5.52
I would recommend up to a 2.5hp outboard as being very adequate. In the electric world I see two choices for you:
Torqeedo Travel 1003 adjustable shaft tiller is a robust, efficient electric outboard with built in Lithium battery pack. The 1003 has a high efficiency battery capacity, and an on-board-computer (including GPS and real-time range calculation). Torqeedo rates it as a 3 HP output but in a sailboat plying open ocean or lake, I would think it is more like a 1.5hp.
Torqeedo's Cruise 2.0 long shaft remote control motor a robust, efficient electric outboard with a 24v battery pack in the boat. The Cruise 2.0 has an on-board-computer (including GPS and real-time range calculation). Torqeedo rates it as a 5 HP output but in a sailboat plying open ocean or lake, I would think it is more like a 3hp. Traditional batteries or Lithium batteries can be used on this motor so that you can position the batteries to the best effect in the boat.
Both Torqeedo outboard us a very efficient slow propeller that may have some deformity in a negative sea state but would likely be adequate for your light boat.
Mike sv Fluke
Electric Yacht Southern California / Pacific
Posted by: mike@electricyachtssocal.com
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