Tuesday, August 4, 2015

Re: [Electric Boats] Just a thought

 

That might do it at least try before investing big money. Am in the heart of bass boat country. one 300 HP outboard and then a trolling motor
thanks

On 8/4/2015 9:57 AM, 'Glenn Holland' gholland1@nc.rr.com [electricboats] wrote:
How about something like this?  Get a large used electric trolling motor (bassboat) and do the deal. 
 
 

Sent: Tuesday, August 04, 2015 9:41 AM
Subject: Re: [Electric Boats] Just a thought [2 Attachments]

 

Thanks for the info.  The boat has a bare hull weight in CB version 0f 820 lbs.  The keel version was 960 with a 320 lb keel so I figure the CB version has some ballast.

Since this hull was a keel and doesn't have a CB trunk I have some room to add ballast for stability.

I am at the opposite end of the country. South Central FL and would use it on two lakes Of maybe 5000 acres, that have ramps within a mile of house.

What would be the cost of either of the motors. Got a feeling they are going to be outside my price range since live on a fixed budget (SS)

GPS and computers seem overkill for this usage.

Here is the boat as I have it and as it was new





On 8/4/2015 9:26 AM, mike@electricyachtssocal.com [electricboats] wrote:

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

 


--   Capt.Len Susman Rtd  Trikini Trimarans

--   Capt.Len Susman Rtd  Trikini Trimarans

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