From what I've seen, Torqeedo claims that:
The Cruise 2.0 is equivalent to a 5hp motor, and
The Cruise 4.0 is equivalent to a 10hp motor.
From my experience trying them both on a Catalina 22, and a Catalina 30, that seemed to be in a reasonable ball park.
The Cruise4.0 on the Catalina 30 could push it (forward) with fair results up to 4mph in calm water (this is a LOT of boat to push with only 10hp mounted as an outboard on the stern!). Unfortunately, an outboard mounted on the stern of a large, fat sailboat isn't going to perform well backing up with any kind of significant cross wind at the dock.
The Cruise2.0 pushed my C-22 at about 4.5mph max.
The Cruise4.0 would max out around 6.4mph.
I have recently tried mounting the 4.0 on a 13' wooden power boat. It also maxed out around 6.5mph, which (while disappointing) is fairly consistent with hull speed for that boat.
I haven't seen Torqeedo make any max speed claims. Their claims of HP might be a little over-stated, but my experience is that it's no grossly so.
It would be fun to see what an 86# Newport Vessel trolling motor could do. My skepticism is that I doubt you'd get anywhere near 13mph on anything but an ultralight, specially designed platform.
What is the max theoretical speed of a 13" pitch prop?
I guess that depends on the RPM of the motor?
Anyone have any idea what max RPM of a trolling motor is? Maybe 1500RPM?
With a pitch of 13", and a max of 1500 RPM, that would give a max theoretical speed of 18.5mph (someone check my math, please?).
Does that seem about right?
From: "mkriley48@yahoo.com [electricboats]" <electricboats@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Thursday, December 1, 2016 8:47 AM
Subject: [Electric Boats] Re: Newport Vessel trolling motors spec sheet
would it be possible to borrow a 2.5 gas outboard and conduct the same test to see how much BS is in torqeedo advertising?
I suspect the truth has been stretched.
mike
I suspect the truth has been stretched.
mike
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Posted by: oak <oak_box@yahoo.com>
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