Very good to have 3 ways of propulsion - wind, oar and motor. I like your positivity. The sentence heared most often is: "That is a good thing". Yes it is indeed :) Thank you for your videos!
G,day Yrvind, looks like you're about to claim one of those RUclips button thingy , commemoration celebration, 25 thousand. Excellent, Yrvind. All the best regards from here on the West Coast side of Australia 🌏🇦🇺🙏🖖🤟🐨👽😎
...good idea about separating the control module. You could then attach the prop to the boomkin and just lower as needed ..no need for lifting and moving engine around.
Take this trolling motor to the next level. Instead of mounting it on the stern, use the Yrvind innovation process and cut a hole in the hull of the boat at the stern end, remove the control module at the top of the tube, slide the tube through the hull, fiberglass it in as a permanently mounted trolling motor. There would be no need to keep taking it out, mounting it, taking it off and storing it. A lot less work. The vertical tube could be shortened as needed and the top assembly which is the controls, could be on a longer cable which would allow you to move where you want to be inside the boat (looking out the portlights) or standing in deck hatch while pulling into a harbor. This will give you more inside space for other things. Does this unit have a remote control? Just a thought
That looks very similar to the Minn Kota 50lb trolling motor I got many years ago to use on my Neptune 16 sailboat. Does this one have a "digital maximizer" speed control feature? I think that feature is a pulse width modulation (PWM) motor speed controller that helps a lot with efficiency at lower speeds. My motor had some other type of speed selection built in. I can't find my spreadsheets, but the lower speeds were way less electrically efficient (I vaguely remember something like half as efficient). I use an external PWM controller (between the battery and the motor) with mine. There are also probably also some decent efficiency gains to be had with a different propellor, but it's been too long since I looked at that for me to remember any helpful details for you.
The thing that eats you up with these systems is effiency losses. They stack up quickly. If you've got 400 watts effective of panels, that's about 1/2 hp input, or 4 hours charging for 1 hour of 2hp motor. 80% efficiency for charging and 80% for discharge and some motor loss will halve the energy conversion again, so you are at 8hours charging for 1 hour at 2 hp. This also puts a significant requirement on battery storage. For continuous real time use, you need to get 1500 watts (after losses) to get 2 HP, so you probably need 3000 watts. I use 2HP because that's a guess of the usable horsepower you would need for the vessel. Just kicking around some numbers. I'd like to have the option if I were you. I'd keep the motor under cover like you plan to do. Thanks for the update. Just checked - that motor has a maximum current draw of 50 Amps. So 600 Watts. Maybe 500-1000 watts of panels would work fine.
@SvenYrvindExlex indeed, for good conditions, you will be able to make a couple of knots for small power. Over a long period, this can make a big difference. I am glad you have the motor. Trial trips will tell a lot. Best to you and your project.
I think it is possible to generate electricity with it as well... especially in the high wind areas you likely encounter.... but takes some work, hydrofans and Kort nozzles, etc.. not simple but certainly possible.
This motor has 55 lbs thrust.. Lets say in Madeira they towed you at 3 knots. 3 knots = 1.54m/s. 175W/1.54m/s = 114N. 1lb thrust = 4.45N. So that would have been 25.6 lb-force they were towing you under 3 knot assumption. Take my logic with a grain of salt. Sort of amazing- another miracle of the square cube law.
Someone please donate a Torqeedo or E-propulsion outboard, with a few more horsepower, and supplemental batteries. I would if I was rich. I have a 55 lb thrust Minnkota on my sailboat. It's an 1100 lb disp., 18 ft. boat, we sail on lakes (so far) and this motor is just barely powerful enough to negotiate breeezy docking or moderate waves and currents. Of course, the battery weighs more than the motor. So far so good, but I wish I could afford a Torqeedo or E-propulsion (and batteries) with more power.
@@SvenYrvindExlex Surely there's a bit more powerful electric motor that would run on your lead acid AGM batteries? Now you've got me thinking along those lines regarding lithium! I understand, though, a bird in hand is valuable to the experienced voyager.
Jeg prøvede at forhale min Bandholm 27 med sådan en motor samme og jeg behøvede ej have motorbriller på 0,4 knob men håber din båd er letter min Bandholm 27 3000kg😊
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
Very good to have 3 ways of propulsion - wind, oar and motor. I like your positivity. The sentence heared most often is:
"That is a good thing". Yes it is indeed :) Thank you for your videos!
G,day Yrvind, looks like you're about to claim one of those RUclips button thingy , commemoration celebration, 25 thousand. Excellent, Yrvind. All the best regards from here on the West Coast side of Australia 🌏🇦🇺🙏🖖🤟🐨👽😎
And from the northern part of the east coast of Australia too, he really has an international following 👍
Some of those electric trolling motors are freshwater only, glad to see you got the salt water rated one 👍
This is Wonderful! ❤❤❤
Nice MinnKota from Minnesota
Good man Jan Comstedt 👏👌👍. Please show Sven how he can strip it down to fit his boat better.
Or maybe just take a few cm off the shaft pipe - not hard given Yrvin's shop snd skills.
It fits well enough. It is a tight fit and that is good. I do not want it to rattle around.
That will be a big help it will work great on a boat that size
55 lbs thrust is almost useless in difficult conditions.
Fantastisk, Sven! Nå ble jeg glad :) Gratulerer!
...good idea about separating the control module. You could then attach
the prop to the boomkin and just lower as needed ..no need for lifting and moving engine around.
It is just 10 kilos. I can handle that.
Take this trolling motor to the next level. Instead of mounting it on the stern, use the Yrvind innovation process and cut a hole in the hull of the boat at the stern end, remove the control module at the top of the tube, slide the tube through the hull, fiberglass it in as a permanently mounted trolling motor. There would be no need to keep taking it out, mounting it, taking it off and storing it. A lot less work. The vertical tube could be shortened as needed and the top assembly which is the controls, could be on a longer cable which would allow you to move where you want to be inside the boat (looking out the portlights) or standing in deck hatch while pulling into a harbor. This will give you more inside space for other things. Does this unit have a remote control? Just a thought
I am happy with this arrangement
That looks very similar to the Minn Kota 50lb trolling motor I got many years ago to use on my Neptune 16 sailboat. Does this one have a "digital maximizer" speed control feature? I think that feature is a pulse width modulation (PWM) motor speed controller that helps a lot with efficiency at lower speeds. My motor had some other type of speed selection built in. I can't find my spreadsheets, but the lower speeds were way less electrically efficient (I vaguely remember something like half as efficient). I use an external PWM controller (between the battery and the motor) with mine.
There are also probably also some decent efficiency gains to be had with a different propellor, but it's been too long since I looked at that for me to remember any helpful details for you.
Jan the man!
The thing that eats you up with these systems is effiency losses. They stack up quickly. If you've got 400 watts effective of panels, that's about 1/2 hp input, or 4 hours charging for 1 hour of 2hp motor. 80% efficiency for charging and 80% for discharge and some motor loss will halve the energy conversion again, so you are at 8hours charging for 1 hour at 2 hp. This also puts a significant requirement on battery storage. For continuous real time use, you need to get 1500 watts (after losses) to get 2 HP, so you probably need 3000 watts. I use 2HP because that's a guess of the usable horsepower you would need for the vessel. Just kicking around some numbers. I'd like to have the option if I were you. I'd keep the motor under cover like you plan to do. Thanks for the update.
Just checked - that motor has a maximum current draw of 50 Amps. So 600 Watts. Maybe 500-1000 watts of panels would work fine.
I do not need 2 hp, I think 0.2 hp be fine in calm water propelling the boat faster than the oar
@SvenYrvindExlex indeed, for good conditions, you will be able to make a couple of knots for small power. Over a long period, this can make a big difference. I am glad you have the motor. Trial trips will tell a lot. Best to you and your project.
I think You can also shorten the tube of the motor.
I think it is possible to generate electricity with it as well... especially in the high wind areas you likely encounter.... but takes some work, hydrofans and Kort nozzles, etc.. not simple but certainly possible.
👍
This motor has 55 lbs thrust.. Lets say in Madeira they towed you at 3 knots. 3 knots = 1.54m/s. 175W/1.54m/s = 114N. 1lb thrust = 4.45N. So that would have been 25.6 lb-force they were towing you under 3 knot assumption. Take my logic with a grain of salt. Sort of amazing- another miracle of the square cube law.
Shaft can be shortened easy i think.
It fits and that is good enough.
Someone please donate a Torqeedo or E-propulsion outboard, with a few more horsepower, and supplemental batteries. I would if I was rich. I have a 55 lb thrust Minnkota on my sailboat. It's an 1100 lb disp., 18 ft. boat, we sail on lakes (so far) and this motor is just barely powerful enough to negotiate breeezy docking or moderate waves and currents. Of course, the battery weighs more than the motor. So far so good, but I wish I could afford a Torqeedo or E-propulsion (and batteries) with more power.
I am not having lithium on the boat, I fire would kill me.
@@SvenYrvindExlex Surely there's a bit more powerful electric motor that would run on your lead acid AGM batteries? Now you've got me thinking along those lines regarding lithium! I understand, though, a bird in hand is valuable to the experienced voyager.
Jeg prøvede at forhale min Bandholm 27 med sådan en motor samme og jeg behøvede ej have motorbriller på 0,4 knob men håber din båd er letter min Bandholm 27 3000kg😊
My boat be about 1000 kilos
😊ok det er jo bedere 2000kg mindre 😂
Only 2 wires running through the pvc shaft. If you search on youtube you learn
how to shorten it.
It fits so I do not need to shorten it.