Minn Kota motor are made for trolling while fishing not for continuous use.
Larry Brown equates 18lb thrust with each HP. I do think you are right, one
horse has more power than 18lbs... Nevertheless, I have used my model 65T with
35lb thrust for 3 yrs in salt/brackish water. I am going to try it on the 20'
powerboat this week. Will let you all know how it works out. Theres a 1-2mph
current in my canals as tide flows out.
BTW: Minn kota rates them by boat weigh. A 52lb thrust (if I recall
correctly) is good for trolling a 2500# boat.
Best
SF
In a message dated 98-09-12 16:34:56 EDT, you write:
<< Subj: Re: Electric motor
Date: 98-09-12 16:34:56 EDT
From: hlg@pacbell.net (Gordon)
To: wwpotter@tscnet.com
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West Wight Potter Website at URL
http://www.lesbois.com/wwpotter/
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SolarFry wrote;
>I currently use a Nissan "Orphan" 8hp to get my P19 in and out of the
inlet...
>I am seriously considering a Minn Kota Endura 52 lb [ 3.5hp ] thrust ($189
at
>Wmart) electric motor to propel my P19 around canals. IMHO: if my 3.3HP
>Mariner can push the P19 in the canals and lakes then a 52lb thrust electric
>can do same.... The 3.5 is INCAPABLE of going out inlet to ocean against
>current and wind... I am trying to sell the 95' 3.3HP Mariner for 400
bucks..
_________________________________________________________
I don't think the 52-lb-thrust motor will be equivalent to a 3.5-hp
outboard. I don't have specs on the Endura, but a 55-lb-thrust Minn-Kota
uses 55 A at 12 V, which is 660 W, which is less than 1 hp input. You can't
get more power out than you're putting in. One hp = 746 watts, according to
my references. Am I missing something?
I just found the following in my archives relative to a 52-lb-thrust motor:
"I am using an electric motor with 52# thrust on my Capri 14.2. In most
conditions, this has been adequate for myself and one crew (total ~450#). In
heavy conditions, I have had difficulty pointing directly upwind, getting
blown to either side. It is slow going but I have always made it to my
desired destination. "
The Capri should be easier to drive than a P19. Maybe use two trolling
motors?
Minn-Kota sells a Neptune 96, which is a pair of 48-lb-thrust Neptune 48s
with a single controller. It uses 56 A at 24 V, which is about the same
power requirement as my RT-72/S, which I compute at approx. 1.5 hp, but it
might be more efficient with its two propellers. That might be a good
choice for a P19 or Joel Holberg's Catalina 22. It's not specifically a
saltwater motor like the Minn-Kota Riptide or the MotorGuide Great White
series, so might not be suited for saltwater use unless carefully
maintained.
There are also 2.2 hp (24 V) and 3.5 hp (36 V) electric outboards that use
an aircooled electric motor and a regular outboard drive. They are made by
Ray Electric <http://www.rayeo.com/ >, but I think they are quite
expensive. .
Harry Gordon
P14 #234, Manatee
Mountain View, CA >>