Wow! What a great project. Very nice job converting the ICE outboard to electric. It looks a lot like the stealth high power electric outboard I purchased. They are built very similar with a water cooled 75 hp motor & control. Thanks for sharing
I thought the four-blade racing prop might be a bit aggressive, the three blade gives you the "jump to lightspeed" we all know and love. Awesome project and must be a blast to drive.
Without the Dilithium Crystals you're toast anyway. You have the magnafluxer of course? What I love about this guy is that the next step might be an elevator or excavator or whatever, and he just builds that too. It's brains that will make America great again, if they're allowed to play, and they want to play, in a lopsided game.
But 240v for a sport boat application should be an option, but not the standard. Unless someone want to use their dryer cord to charge their boat..not real practical, unless you can pull into a Tesla station and charge there. But then the Catastrophic converter might blow. She'd just be getting way too too much Captain..
Absolutely wonderful. I am very impressed with what you have achieved. The quality and workmanship is by far the best i have scene. Well done. I am a boat dealer in Australia, interestingly i specialize in RIB's, but i would love to pick your brain at some point regarding the lessons you learned to get to this point. I am Building a 22 foot long boat style skiff, this engine is exactly what Ive dreamed about powering it with. Also incorporating a full solar roof to charge and offer some shade from the Aussie heat. I was also thinking about a small honda genset, for the longer weekends away. Great job once again.
blackdiamondmarine Thanks for the comments! Feel free to give me a call or email sometime. 3038849847 Info@netpositive.co I am still learning and would love to chat with you as well.
Sure, throw a couple solar panels on the bimini to re-charge. Should only take about 3 years to get enough charge to get you around the lake again. This is not a trolling motor using a couple of 20 amp hour wheelchair batts. Seriously. That motor is sucking more juice than your entire block under acceleration and fast cruise.
@@JPZANE NO. Its battery powered, he recharges the batteries with solar thats a difference. If you are able due to solar panels ON your boat, to run the electric Motor with solar power, than you can say its solar powered-
I did an electric outboard, but the gas powered lowered gear is very inefficient, high friction, takes a lot of energy to just spin it, which makes little difference in a wasted energy gas powered boat. A better approach is to put the motor in the water for cooling and direct drive the prop.
I havn't seen much video's regarding the electric type or convertion to electric power vids and I must say this is the best vid I have ever seen and the best thing is I speed. I think by minimising some of the weight on te boat will rocket you speed and bring down your power consumtion and lengthen you time on the water. I think there is a hell of a future for you in this industry and best of luck forward. Maybe I will come apon a product of your design that I will enjoy using.
How the DC voltage from battery powered the AC 3-ph motor? What the devices (controller and etc?) used ? What component should we consider for all system or could you give the reference so i can learn about the system?
How big battery pack you have in kw/h? so the motor is 15kw and how much volts? mount a very low solar roof , that you can retract when you exit the boat
A.E.E.N 5th Hi. It's got 38.5 kWh of battery at 170V. The controller draws 500 amps so that is 85,000 Watts maximum. In reality, full power will drop as there isn't enough cooling in the motor and VFD to avoid overheating. I'm building a solar Bimini top like the on on the tractor in my other video. It'll be 600 Watts. Thanks for watching!
Could you post a parts list including detailed gauges and capacities of what you used. I want to make a dual prop inboard 24' that recharges using wind turbines.
I think you've created something many would purchase. I don't care what others say, electric is the future. boats have long been polluters and there's a big need for a boat like this. they have multi million dollar electric yachts. a ski boat slash tender is an awesome idea
Yea, It's definitely not a Mastercraft or Wakesetter but the performance is better than one! R.I.B.'s are a nice versatile design. Thanks for watching!
interesting project. I really like the idea of a weekender sailboat that I can lose the diesel inboard and replace it with an electric. Is it realistic to put a battery bank in the same space as a fuel tank?
Yes, it's roughly the same volume though the batteries will weigh more than an equal volume of fuel. I put 40,000 watt hours of battery in the same area as 21 gal of gas. Also, you can't just refill the batteries as there is no supercharging at the lake (yet) You will need to size your battery pack appropriately. Very easy if you are only looking for 5-10 mph. It gets exponentially harder the faster you go.
Seems to me the oil leaked oil when positioned in a way it not made to be placed, not to also mention it adds weight on top with the cooling system needing to be installed to cool the hot oil.
He needs a Square Wave welding machine for aluminum welding. Older high frequency machines make it very difficult to make good looking inside corner welds even for a welder with experience.
I couldn't listen to most of the audio so you may have answered this. How many runs can you do on one charge? I know Correct Craft could only do 6 minutes no wake to the course followed by three runs and then another six minute no wake speed back to the dock.
What is the battery endurance you achieved for towing a skier as you demonstrated? Or putting around the lake with two adults and a child onboard? Can you put it in practical terms, not just amp hours.
Well if you want to get technical/literal, are you powered by food, or by fat, or by the chemical process your body uses to get the energy?...you know what they meant... Technically pretty much all our energy comes from the sun. You say it's battery powered, but batteries don't generate power, they store it chemically, so technically you're wrong. It's electrically powered...Lol
I've had a motorboat most of my adult life and they've all been outboards that would be something really cool not to hear the engine running I was happy when I bought the forestroke it was a lot quieter But this is a whole new level of quiet.
It's a Curtis 1239E Motor controller. It's really slick, it even has connections for all kinds of safety interlocks etc. I bought mine from thunderstruck-EV.com. They're available in different voltage and current configurations this one can take up to 170 V and 500 A
Did you do an endurance test, to see how far you could go on a single charge? How much did the batteries weigh? Fully loaded, my boat carries 58gal of fuel, and has a 200hp engine. So I carry 353lbs of fuel. I can cruise at 20 knots for almost 9hrs at 2800rpm. My boat weighs about 4500lbs fully loaded.
hi love your work! i wish you would join forces with a outboard manufacturer to create this one in a series to be sold. As well as a battery package and diagrams to adapt to people who already own solar panels at home. Create "removable"batter sets so one is charging while the other is been used. Can u share actual run time with your setting? thanks
Hi! My next project will be a houseboat with 30,000 watts of solar and twin 250hp electric inboards. 5 days to fully recharge will give me the ability to go anywhere on lake Powell and never stop for gas again! I like the idea of a pontoon boat! Lots of flat space for solar and large flat batteries. I'd use a full, in-tact Tesla car battery pack. 85 to 100 kWh. Waterproof and ready to go. Jack Rickard at EVTV.me makes controllers for them.
Greetings from New York City: Hi guy. I"m pretty amazed about the dingy that you engineered via electric power....... my question is: can you do it by removing both Volvo-Penta engines on a lagoon catamaran 44? Please respond. thanks......... Jay
Sure, there are electric motors up to 700 horsepower available in a kit. You'd have to replace the engine with the electric motor and you could keep the whole outdrive. I would recommend using a full Tesla battery skateboard from a wrecked car. It's waterproof. I can idle for 100 hours, something like a 200 mile range at slow speeds. Links below: www.evdrive.com/products/evd-motor-controller/ evtv.me
at one point he mentions a 40KWH battery pack, and later says 70KW consumption at 85% throttle. which means around a half hour at 85% throttle, by my math.
Great job. But I’ve used 15 hp on boats that big and haul but with 4 adults at 18 mph. But I’m fishing. So if you fish and not ski ? You could do it with less batteries solar no Tesla batteries. And standard golf cart motor Right ? Plus you can bring home supper. 18 is plenty fast.
Yes, it takes exponentially more power to go fast. I am thinking about a houseboat next which would be ALL solar electric. It's quite easy to get 15 mph. Once you need to get on plane, you need 10 times the power. This boat can "idle" at 5 mph for 100 hours on a single charge. If you wanted a low speed, you could do it MUCH cheaper! Example: 5 mph only takes a couple hundred watts. Full speed is 85,000 Watts. It takes about 40,000 Watts to go 35mph. 30,000 watts to do 27 mph. Thanks for watching!
Net Positive LLC So you can run 15 mph for 20 hours usage ? Actually a ten hour battery would be good Big slow quiet fishing boat works unless you in a tournament. Thanks !
Curtis Controller? WOW what strings did you have to pull to get the programing hardware / software? Or did you just pay someone to program it? I've tried working with a Curtis distributor for my DIY project and didn't have really good results. They want me to put a ton of money down upfront for programing equip.
So how much did it cost for the motor set up and electronics minus the boat ,and what would be the best way if a guy was going to use this on salt water due to corrosion ?
Dave Scheer I think I have seven or $8000 into the motor which isn’t bad considering it’s peak power of 105 hp with as much torque at idle as a 300 horse outboard. The battery is another seven or 8000, so comparable to a gas set up though I never pay for gas again.
Drunken Hamster Hi, it can run about 30 hours at "idle" speed or 30-45 minutes at full power. We get about 4 hours of waterskiing time. Best efficiency is the same as a gas boat...around 25 mph. I could add batteries if I need more run time but I don't usually use more than half capacity. Thanks for watching! More to come...
useful info, but maybe something you could've shared in the vid.... some don't like having to troll thru comments to get this kind of important detail.
Question, I noticed you did direct drive coupling of the shafts (no extra gears) and used a upgraded 15hp golfcart motor BUT, How did you determain the size of the electric motor to use with the size of outboard gearbox? example: if I use a 250hp outboard for the project how would I estimate the correct electric motor
Thanks for watching! Excellent question. There are a lot of variables. I used a lower unit from a 40-50-60 horsepower. I used an electric motor whose horsepower depends on the voltage. My original batteries were (3) 48 V modules in series for (144v) This would yield a peak of about 80 hp and a continuous rating of about 50 hp. The same electric motor running 170V (my current configuration), is about 105 peak hp. So, I'm way overpowered for the lower unit which is why I had a hard time finding the right prop. For max power and speed, I had to get a 24" pitch, on a 3" hub. Basically, I look at the power curve for the motor at the voltage I want, see where peak HP comes in and do the math for what pitch prop I need. Multiply prop pitch times motor rpm, divided by gear ratio, in my case 2:1. The resulting number will give your speed in inches per minute. Easy math will convert to miles per hour. This is your theoretical max speed assuming you have enough HP. Actual will be slightly less due to prop slip. I can use a 15" pitch prop for MASSIVE hole shot and still do 45 mph due to the wider RPM range of the electric motor. (0-8,000 RPM) If I were to do it over again, I'd use a larger outboard. They make water cooled electric motors up to 760 HP that weigh only 200 pounds!
so just a rough estimate is 170v-144v=26V and 80hp-105hp = 25hp so a good rough estimate would be 1.04v per additional HP. so for the 250hp in my question I'd need about 321Volts , thanks watercooled would be great but not saltwater maybe a oil or fresh water and small motorcycle radiator would work. On your prop you mite try a four blade pusher prop instead of that racing cleaver prop. A regular four blade pusher the blade ears will look the same as your three blade you will get good hole shot but top end will have lots of push at lower rpm (less voltage means longer battery life) Thanks for the reply great video
Pretty much Your math is just about right on. The most direct way is to just multiply Volts times Amps which give you Watts, then divide by 746 (the number of watts per horsepower.) My controller puts out 515 amps max so 515x170 is 87,550 Watts, divided by 746 is 117HP. This is absolute peak and does not take into account efficiency loss of about 5%. It is also only at full battery charge, this will drop perhaps another 5% with voltage sag. So figure 90% = 105HP If you want 250 hp, that's 186,500 watts. If you use a 500 Amp controller, you'll need 373Volts. You can get controllers at a lot of different voltages and current ratings. See: www.evdrive.com They have controller from 250-1000 amps with voltages from 130-700 volts. Their motors go up to 760HP! Good luck!
Neat concept and application but I am curious about the plain boat for use with a conventional motor. Where can I get information on the rigid inflatable ? Thanks and best wishes on your projects ! - Don
shank that bass Curtis controller be best and lipo/battery pack be best, depends on your power to $ range, 3x12v sealed lead acids could be used for testing and then work out ya budget for new/modern cells
makomarkos Hi! Thunderstruck motors and HPEVS.com. They can configure a motor and controller for all kinds of applications and have the expertise to help you with whatever your project is. I'm thinking about making a 72 inch snowblower attachment for the zero turn mower!
Hey that would be cool! I want to get some aerial video. Would probably have to be off season as they don't allow drones in the park but if it weren't busy, I think they'd overlook us.
They don't look pretty but they have plenty of penetration that's all that matters you, Poser! Bet you never welded anything in your life, other than jumper cables on your neighbours truck hood on accident ya kook!
Hi, thanks for watching. No, I'm just a guy in his garage. I post these videos in the hopes that someone with resources will get in the game. I've sent this to Evinrude and Merc. It's been 3 years and still nothing...
You should never run an outboard that doesn't have the lower end in the water. The water provides cooling for the lower end gear set. VERY hard on the bearings and seals.
I love this idea I'm glad it worked out great but a typical gas and does not idle at 1000 rpms and idles at about 5 to 600 RPMs anything higher than that will cause damage to the forward and reverse selector also you need to switch over to a hydraulic trim this will help you plane easier and then you can change the pitch on the engine itself the cruise better at speed
Jamie Nichols Wow! Good eye! Yes they are. He was the only one I could find with props in this size with that steep of a pitch. (24") I suppose there are not many 60 hp motors doing 50+ miles an hour
Jamie Nichols Sort of, the motor can go up to 8,000 rpm but peak hp is at 4,700 rpm and my lower unit is a 2:1 gear ratio so that made it a bit harder to get a prop. Next time I'd look for a 90 hp with a lower gear ratio.
Yeah, they’re really made for massive boats. Torqeedo makes a nice product but WAY expensive. knowing what I do now, I’d buy a full intact battery from a wrecked Tesla model three, 75 kWh and use a bigger flat bottom boat and not worry about the weight so much and then just put in a 200 or 300 hp electric motor.
How did you know you were going 53MPH? Also you would be better off running a Merc Trophy 4 prop on that boat, maybe even a Merc Bravo 1. That cleaver is made to lift the stern of high performance hulls that have natural bow lift. It's not really made for the kind of boat you have.
Wow awesome, how long will it run at half throttle and full power on a single charge? And how many miles will it go at half throttle and full throttle?
Great job! I have a little less ambitious idea to convert a smaller outboard with a golf cart motor, for a 14 foot sailboat. Would you have a suggestion about a simple motor/battery combo? Thanks!
Wow! What a great project. Very nice job converting the ICE outboard to electric. It looks a lot like the stealth high power electric outboard I purchased. They are built very similar with a water cooled 75 hp motor & control. Thanks for sharing
I thought the four-blade racing prop might be a bit aggressive, the three blade gives you the "jump to lightspeed" we all know and love.
Awesome project and must be a blast to drive.
Question, if you square the hydrodynamic load of the coils and invert the prop blades in degrees you'll realize I have no idea what I'm talking about.
Without the Dilithium Crystals you're toast anyway. You have the magnafluxer of course?
What I love about this guy is that the next step might be an elevator or excavator or whatever, and he just builds that too. It's brains that will make America great again, if they're allowed to play, and they want to play, in a lopsided game.
Chris Freely - Oh man... SO funny I nearly choked on my coffee!
but with out knowing you have come up with the answer
But 240v for a sport boat application should be an option, but not the standard. Unless someone want to use their dryer cord to charge their boat..not real practical, unless you can pull into a Tesla station and charge there. But then the Catastrophic converter might blow. She'd just be getting way too too much Captain..
Ken Lopossa what's wrong with using standard 240V outlets? You can plug it in in every room.
That is awesome!!! How much running time do you get on a charge?
For a home fabrication you did an excellent job! Congrats and best of luck on future projects...
Hi. Just found this channel your my new hero. New to solar. Play with etoys. . You don't mess around. Thanks for your efforts great info!!
Absolutely wonderful.
I am very impressed with what you have achieved. The quality and workmanship is by far the best i have scene. Well done.
I am a boat dealer in Australia, interestingly i specialize in RIB's, but i would love to pick your brain at some point regarding the lessons you learned to get to this point.
I am Building a 22 foot long boat style skiff, this engine is exactly what Ive dreamed about powering it with. Also incorporating a full solar roof to charge and offer some shade from the Aussie heat. I was also thinking about a small honda genset, for the longer weekends away.
Great job once again.
blackdiamondmarine
Thanks for the comments! Feel free to give me a call or email sometime.
3038849847
Info@netpositive.co
I am still learning and would love to chat with you as well.
Did you have your eyes closed when he showed the aluminium motor mount.. !!! (Sorry I am a welder by trade) haha :-)
Sure, throw a couple solar panels on the bimini to re-charge. Should only take about 3 years to get enough charge to get you around the lake again. This is not a trolling motor using a couple of 20 amp hour wheelchair batts. Seriously. That motor is sucking more juice than your entire block under acceleration and fast cruise.
I'm missing the solar part
He charges the boat battery with his solar array on his house. Thereby, it is a solar powered boat.
@@JPZANE NO. Its battery powered, he recharges the batteries with solar thats a difference. If you are able due to solar panels ON your boat, to run the electric Motor with solar power, than you can say its solar powered-
I did an electric outboard, but the gas powered lowered gear is very inefficient, high friction, takes a lot of energy to just spin it,
which makes little difference in a wasted energy gas powered boat. A better approach is to put the motor in the water for cooling and direct drive the prop.
yep, convert a shaft drive.
I love how you manage the video clips. Every time I want to fast forward the video you beat me to it.
Are you able to trim the motor? It can help with the the plane as well
If you can put some electric trim you could adjust while underway and could help out
I havn't seen much video's regarding the electric type or convertion to electric power vids and I must say this is the best vid I have ever seen and the best thing is I speed. I think by minimising some of the weight on te boat will rocket you speed and bring down your power consumtion and lengthen you time on the water. I think there is a hell of a future for you in this industry and best of luck forward. Maybe I will come apon a product of your design that I will enjoy using.
How the DC voltage from battery powered the AC 3-ph motor? What the devices (controller and etc?) used ? What component should we consider for all system or could you give the reference so i can learn about the system?
How big battery pack you have in kw/h? so the motor is 15kw and how much volts? mount a very low solar roof , that you can retract when you exit the boat
A.E.E.N 5th
Hi. It's got 38.5 kWh of battery at 170V. The controller draws 500 amps so that is 85,000 Watts maximum. In reality, full power will drop as there isn't enough cooling in the motor and VFD to avoid overheating.
I'm building a solar Bimini top like the on on the tractor in my other video. It'll be 600 Watts.
Thanks for watching!
Could you post a parts list including detailed gauges and capacities of what you used. I want to make a dual prop inboard 24' that recharges using wind turbines.
I need one can you help me and how much do I have to pay?
Can you put the electric motor and controller in a yamaha jet ski hull?
Amazing to see this, loving this project!
I think you've created something many would purchase. I don't care what others say, electric is the future. boats have long been polluters and there's a big need for a boat like this. they have multi million dollar electric yachts. a ski boat slash tender is an awesome idea
you should use synthetic oils in the lower unit and Greece if you're not already help get rid of drag
Can you throttle down to say 3-5 mph for fishing purposes? A problem with large engines requiring a second much smaller 'kicker' outboard.
how did you mechanically fix the lower gear unit?
weld the clutch dog together.
How many tesla modules and what's your runtime at cruising speed?
That's not a water ski boat. That's a RIB, intended for being a tender to a larger boat
Yea, It's definitely not a Mastercraft or Wakesetter but the performance is better than one! R.I.B.'s are a nice versatile design. Thanks for watching!
U don't have to KISS his ASS Dr. Net
HKM _ It is also solar charged not solar powered!
HKM _ It's a water ski boat when it is pulling a water skier. It's a fishing boat when people are fishing from it. It's a boat.
Well said.
Wow!!! Very Very impressive....Awesome craftsmanship...
interesting project. I really like the idea of a weekender sailboat that I can lose the diesel inboard and replace it with an electric. Is it realistic to put a battery bank in the same space as a fuel tank?
Yes, it's roughly the same volume though the batteries will weigh more than an equal volume of fuel. I put 40,000 watt hours of battery in the same area as 21 gal of gas. Also, you can't just refill the batteries as there is no supercharging at the lake (yet) You will need to size your battery pack appropriately. Very easy if you are only looking for 5-10 mph. It gets exponentially harder the faster you go.
Wow, very cool. Great job. Why wasn't the oil cooled motor not good at the end?
Seems to me the oil leaked oil when positioned in a way it not made to be placed, not to also mention it adds weight on top with the cooling system needing to be installed to cool the hot oil.
Pretty cool project. Either get some more practice at welding or bring it in to a professional. The welds on that mount looked scary.
He needs a Square Wave welding machine for aluminum welding. Older high frequency machines make it very difficult to make good looking inside corner welds even for a welder with experience.
BEEN thinking about this for our speed boat you have done it thank you
I couldn't listen to most of the audio so you may have answered this. How many runs can you do on one charge? I know Correct Craft could only do 6 minutes no wake to the course followed by three runs and then another six minute no wake speed back to the dock.
Great job, this is the future, from an old water skier.
What is the battery endurance you achieved for towing a skier as you demonstrated? Or putting around the lake with two adults and a child onboard? Can you put it in practical terms, not just amp hours.
I am almost impressed. I was smiling the hold time. Boat if you convert a large vessel, let me know. I would love to see that video test.
Without the outboard running you could still literally talk to the skier that would be cool. Can't say I've ever been able to do that.
To increase more current in the batteries does it has to be in parallel or series?
RoPower parallel
ITS NOT SOLAR POWERED !!!!!!!!!!!!!!!!!!!!!!!!
Its battery powered. Solar recharges the cells.
He has at least a 50,000 watt battery cell. It would take forever for a pair of 250 watt panels to charge that thing.
If you had a day of wind around 45mph and a turbine you could charge that battery up within a few hours and then go out and try to fight the wind.
Dan Henderson I have a question how does the water and electrics work ? Is it not a problem when it gets wet ?
Well if you want to get technical/literal, are you powered by food, or by fat, or by the chemical process your body uses to get the energy?...you know what they meant... Technically pretty much all our energy comes from the sun. You say it's battery powered, but batteries don't generate power, they store it chemically, so technically you're wrong. It's electrically powered...Lol
@@rsafishingnoob6337 you mean you've never had battery powered toys that you put in the water?
to bad that never went production. what would cost to buy like that?
So at 75kW of power usage, how long does your battery bank last?
Pop's Shack longer then it's taken to get ure question answered
Pop's Shack i think he somewhere states that he has a 40 kWh battery, so you can calculate it.
60 min*(40kwh/75kw)=32min
I ski at 30-33 mph. Wonder what consumption is at that speed.
@@TedKidd Probably half. So you've got about an hour of skiing 😁
@@AgentSmith911 with water skiing you only moving about half the time. there is a lot of faffing around as well.
Great job guys, all electric is the future.
I've done this on mine,works like a dream.
I've had a motorboat most of my adult life and they've all been outboards that would be something really cool not to hear the engine running I was happy when I bought the forestroke it was a lot quieter But this is a whole new level of quiet.
It's a Curtis 1239E Motor controller. It's really slick, it even has connections for all kinds of safety interlocks etc. I bought mine from thunderstruck-EV.com. They're available in different voltage and current configurations this one can take up to 170 V and 500 A
Them 4 stroke outboards are getting fast now
Did you do an endurance test, to see how far you could go on a single charge? How much did the batteries weigh? Fully loaded, my boat carries 58gal of fuel, and has a 200hp engine. So I carry 353lbs of fuel. I can cruise at 20 knots for almost 9hrs at 2800rpm. My boat weighs about 4500lbs fully loaded.
So is a standard engine dinosaur powered?
OMG. Fantastic work. Well done 👍 so jealous. I love the sound from electric motors
You need to get a patent on that.!!! Very nice work.!
hi love your work! i wish you would join forces with a outboard manufacturer to create this one in a series to be sold. As well as a battery package and diagrams to adapt to people who already own solar panels at home. Create "removable"batter sets so one is charging while the other is been used. Can u share actual run time with your setting? thanks
Any chance of an update? It would be greatly appreciated. I'd like to recreate this motor for pontoon/ med speed use with a canopy of solar panels.
Hi! My next project will be a houseboat with 30,000 watts of solar and twin 250hp electric inboards. 5 days to fully recharge will give me the ability to go anywhere on lake Powell and never stop for gas again! I like the idea of a pontoon boat! Lots of flat space for solar and large flat batteries. I'd use a full, in-tact Tesla car battery pack. 85 to 100 kWh. Waterproof and ready to go. Jack Rickard at EVTV.me makes controllers for them.
Greetings from New York City: Hi guy. I"m pretty amazed about the dingy that you engineered via electric power....... my question is: can you do it by removing both Volvo-Penta engines on a lagoon catamaran 44? Please respond. thanks......... Jay
Sure, there are electric motors up to 700 horsepower available in a kit. You'd have to replace the engine with the electric motor and you could keep the whole outdrive. I would recommend using a full Tesla battery skateboard from a wrecked car. It's waterproof. I can idle for 100 hours, something like a 200 mile range at slow speeds. Links below:
www.evdrive.com/products/evd-motor-controller/
evtv.me
What is the range on it? Did you calculate that out?
Thats what I would like to know as well. If you can only water ski for 5 minutes, that would kind of make it a bit useless...
Lucianrider they said they get about 4 hours of water skiing in a comment below.
Price Burnett no way he's getting 4 hours of skiing off that unit. Probably less than an hour.
4 hours to charge off 240, do the math. I think he mentions consumption at wot. (I literally don't have my glasses with me right now)
at one point he mentions a 40KWH battery pack, and later says 70KW consumption at 85% throttle. which means around a half hour at 85% throttle, by my math.
Great job. But I’ve used 15 hp on boats that big and haul but with 4 adults at 18 mph. But I’m fishing. So if you fish and not ski ? You could do it with less batteries solar no Tesla batteries. And standard golf cart motor Right ? Plus you can bring home supper. 18 is plenty fast.
Yes, it takes exponentially more power to go fast. I am thinking about a houseboat next which would be ALL solar electric. It's quite easy to get 15 mph. Once you need to get on plane, you need 10 times the power. This boat can "idle" at 5 mph for 100 hours on a single charge. If you wanted a low speed, you could do it MUCH cheaper! Example: 5 mph only takes a couple hundred watts. Full speed is 85,000 Watts. It takes about 40,000 Watts to go 35mph. 30,000 watts to do 27 mph. Thanks for watching!
Net Positive LLC So you can run 15 mph for 20 hours usage ? Actually a ten hour battery would be good Big slow quiet fishing boat works unless you in a tournament. Thanks !
Loads of information: terrific results, well impressed. Good luck with all your future endeavors!
How many hours could you ski
Were you really going that fast out at Chatfield?
What controler did you buy? Can you post full parts list?
Curtis Controller? WOW what strings did you have to pull to get the programing hardware / software? Or did you just pay someone to program it? I've tried working with a Curtis distributor for my DIY project and didn't have really good results. They want me to put a ton of money down upfront for programing equip.
Info on the golf cart motor?
4.5 hours to recharge, how many hours of use for water skiing? OR is is just minutes?
How long will it the battery’s last at full power and how did you get the Tesla battery’s
How many hours of operation do you get out of this at top speeds
you mean minutes right :)
Where did you get tesla battery pack?
Offset the motor on the lower unit make the prop shaft turn two or 3 to one to the electric motor more speed see what happens
So how much did it cost for the motor set up and electronics minus the boat ,and what would be the best way if a guy was going to use this on salt water due to corrosion ?
Dave Scheer I think I have seven or $8000 into the motor which isn’t bad considering it’s peak power of 105 hp with as much torque at idle as a 300 horse outboard. The battery is another seven or 8000, so comparable to a gas set up though I never pay for gas again.
So sophisticated to be in water
Excellent work! Love it
What's the most efficient cruise speed, and what's the range at said cruise speed?
Drunken Hamster
Hi, it can run about 30 hours at "idle" speed or 30-45 minutes at full power. We get about 4 hours of waterskiing time. Best efficiency is the same as a gas boat...around 25 mph. I could add batteries if I need more run time but I don't usually use more than half capacity.
Thanks for watching! More to come...
useful info, but maybe something you could've shared in the vid.... some don't like having to troll thru comments to get this kind of important detail.
Question, I noticed you did direct drive coupling of the shafts (no extra gears) and used a upgraded 15hp golfcart motor BUT, How did you determain the size of the electric motor to use with the size of outboard gearbox? example: if I use a 250hp outboard for the project how would I estimate the correct electric motor
Thanks for watching! Excellent question. There are a lot of variables. I used a lower unit from a 40-50-60 horsepower. I used an electric motor whose horsepower depends on the voltage. My original batteries were (3) 48 V modules in series for (144v) This would yield a peak of about 80 hp and a continuous rating of about 50 hp. The same electric motor running 170V (my current configuration), is about 105 peak hp. So, I'm way overpowered for the lower unit which is why I had a hard time finding the right prop. For max power and speed, I had to get a 24" pitch, on a 3" hub. Basically, I look at the power curve for the motor at the voltage I want, see where peak HP comes in and do the math for what pitch prop I need. Multiply prop pitch times motor rpm, divided by gear ratio, in my case 2:1. The resulting number will give your speed in inches per minute. Easy math will convert to miles per hour. This is your theoretical max speed assuming you have enough HP. Actual will be slightly less due to prop slip.
I can use a 15" pitch prop for MASSIVE hole shot and still do 45 mph due to the wider RPM range of the electric motor. (0-8,000 RPM)
If I were to do it over again, I'd use a larger outboard. They make water cooled electric motors up to 760 HP that weigh only 200 pounds!
so just a rough estimate is 170v-144v=26V and 80hp-105hp = 25hp so a good rough estimate would be 1.04v per additional HP. so for the 250hp in my question I'd need about 321Volts , thanks watercooled would be great but not saltwater maybe a oil or fresh water and small motorcycle radiator would work. On your prop you mite try a four blade pusher prop instead of that racing cleaver prop. A regular four blade pusher the blade ears will look the same as your three blade you will get good hole shot but top end will have lots of push at lower rpm (less voltage means longer battery life) Thanks for the reply great video
Pretty much Your math is just about right on. The most direct way is to just multiply Volts times Amps which give you Watts, then divide by 746 (the number of watts per horsepower.) My controller puts out 515 amps max so 515x170 is 87,550 Watts, divided by 746 is 117HP. This is absolute peak and does not take into account efficiency loss of about 5%. It is also only at full battery charge, this will drop perhaps another 5% with voltage sag. So figure 90% = 105HP
If you want 250 hp, that's 186,500 watts. If you use a 500 Amp controller, you'll need 373Volts. You can get controllers at a lot of different voltages and current ratings. See: www.evdrive.com They have controller from 250-1000 amps with voltages from 130-700 volts. Their motors go up to 760HP!
Good luck!
Why not rig a solar panel to the boat that why it will charge when on the water?
53 mph ....but for how long? Minutes, then need a tow?
Your results are amazing.
Neat concept and application but I am curious about the plain boat for use with a conventional motor. Where can I get information on the rigid inflatable ? Thanks and best wishes on your projects ! - Don
i have a seadoo hull and a fork lift motor i want to use to run it.. what would you recomend for power and control?.. i believe its a 36 volt motor..
shank that bass Curtis controller be best and lipo/battery pack be best, depends on your power to $ range, 3x12v sealed lead acids could be used for testing and then work out ya budget for new/modern cells
Nice video. What are the names of the companies in California you sent the electric motor to for modifications? Thanks
makomarkos
Hi! Thunderstruck motors and HPEVS.com. They can configure a motor and controller for all kinds of applications and have the expertise to help you with whatever your project is. I'm thinking about making a 72 inch snowblower attachment for the zero turn mower!
What are the specs of the motor?
Cherry Creek Resovoir!? I go by dam rd every day! We should link up so I can film you with my drone
Hey that would be cool! I want to get some aerial video. Would probably have to be off season as they don't allow drones in the park but if it weren't busy, I think they'd overlook us.
Net Positive LLC end of season is near. Let me know if you would like to meet up and have some fun filming! Live right around the corner
Inspirational video
oh my god!!! those welds!!!
i can't....
They don't look pretty but they have plenty of penetration that's all that matters you, Poser! Bet you never welded anything in your life, other than jumper cables on your neighbours truck hood on accident ya kook!
Are you producing these for sale? I ask because your channel has LLC in the title. Thanks! :)
Hi, thanks for watching. No, I'm just a guy in his garage. I post these videos in the hopes that someone with resources will get in the game. I've sent this to Evinrude and Merc. It's been 3 years and still nothing...
@@jltempes So are you looking for someone to buy your design, or just hoping someone will see this and make their own, leaving you out of the loop?
What would be approximate the whole cost of the electric system?
74000 watts at 85% power...... how long do the batteries last at that rate???
What are the characteristics (brand, model, power) of the electric motor and how did you select them?
Awsome! How long will the charge last?
You should never run an outboard that doesn't have the lower end in the water. The water provides cooling for the lower end gear set. VERY hard on the bearings and seals.
I love this idea I'm glad it worked out great but a typical gas and does not idle at 1000 rpms and idles at about 5 to 600 RPMs anything higher than that will cause damage to the forward and reverse selector also you need to switch over to a hydraulic trim this will help you plane easier and then you can change the pitch on the engine itself the cruise better at speed
Great video. Nice work.
Where did you get the RIB
buenas tardes, me gustaria saber si ustedes venden el sistema completo y como se llama su empresa
What did you use tha convert the battery D.C. to 3 phase synchronis
THAT, is just AWESOME.
are those ron hill props?
Jamie Nichols
Wow! Good eye! Yes they are. He was the only one I could find with props in this size with that steep of a pitch. (24") I suppose there are not many 60 hp motors doing 50+ miles an hour
Net Positive LLC Your electric motor must be turning low rpm's?
Jamie Nichols
Sort of, the motor can go up to 8,000 rpm but peak hp is at 4,700 rpm and my lower unit is a 2:1 gear ratio so that made it a bit harder to get a prop. Next time I'd look for a 90 hp with a lower gear ratio.
I see company’s like elcore building and selling electric out boards but non of them can reach over 15 miles per hour.
Yeah, they’re really made for massive boats. Torqeedo makes a nice product but WAY expensive. knowing what I do now, I’d buy a full intact battery from a wrecked Tesla model three, 75 kWh and use a bigger flat bottom boat and not worry about the weight so much and then just put in a 200 or 300 hp electric motor.
How did you know you were going 53MPH?
Also you would be better off running a Merc Trophy 4 prop on that boat, maybe even a Merc Bravo 1.
That cleaver is made to lift the stern of high performance hulls that have natural bow lift. It's not really made for the kind of boat you have.
Power trim is essential .
How much did the conversion cost?
Wow awesome, how long will it run at half throttle and full power on a single charge? And how many miles will it go at half throttle and full throttle?
Great job! I have a little less ambitious idea to convert a smaller outboard with a golf cart motor, for a 14 foot sailboat. Would you have a suggestion about a simple motor/battery combo? Thanks!
Very nice love to see something outside the box 😎
Was the lake at cherry creek park?
Hello how are you? How much does the whole set of cables and the motor
wondering why the 40hp. gas outboard with an 80 hp. electric moto?
The gears will not last long.