I'd be worried about taking a 6'6" pram out into 20 - 30kt wind with any motor. Wouldn't take much fetch to develop serious waves with than much wind.
Torqeedo's website says a 2 hp gas outboard can exert about 40# static thrust.
----- Original Message -----
From: Rob Johnson
To: electricboats@
Sent: Saturday, September 05, 2009 10:30 PM
Subject: Re: [Electric Boats] electric drive for a pram tender
Dennis , I'm worried about the stronger winds , how would the electric drive go pushing in to 20-30 knot winds ?.
I would imagine it would need all of the push it could muster , but is the prop , for example , appropriate ?.
Regards Rob J.
--- On Sun, 6/9/09, dennis wolfe <dwolfe@dropsheet.
From: dennis wolfe <dwolfe@dropsheet.
Subject: Re: [Electric Boats] electric drive for a pram tender
To: electricboats@
Received: Sunday, 6 September, 2009, 12:15 PM
Lets say 3 mph drawing 20 amps at 12v and one gp 24 battery weighing about as much as a medium size dog (56 lbs). You could easily run for 2 hours, that's 6 miles or 12 round trips to your boat.
The battery and 30 lb thrust trolling motor will be less than half the cost of the smallest outboard engine.
----- Original Message -----
From: Rob Johnson
To: electricboats@
Sent: Saturday, September 05, 2009 5:18 PM
Subject: Re: [Electric Boats] electric drive for a pram tender
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