Just be blown away by the engineering that went into this. I get there’s something out there that’s cheaper that does the same, but they put in the work and designed something new and quite impressive. More than I can say I’ve done
Doesnt have Voith the same principle as Bowthrusters for years? Or is there a differnece im not able to spot. Also some questions, is there an efficiency benfit or what are the pros to a conventional propeller?
The trolling motor on my boat could do the same thing and has been able to for YEARS. My Dad and his co-worker made trolling motors using windshield motors back in the late 60's.
Pretty cool invention and certainly works but in very few practical applications. That would never work for a planing hull. I have seen this type of propulsion on large vessels like tugs and ships but in much more of a larger package so there is a use for it. Just not much in the recreational market. Maybe for sailboats if they can thin out the ring.
Excellent! Now, can you miniaturize that tech and make a spinning lens cover for GoPro's of other cameras? I don't know if you know what I mean but it would be nice to have a spinning lens cover for cameras with a rim driven electric motor to fling water off for clear shots in wet conditions. Also, there was a fellow from Florida, I think, who developed a similar type of motor called the RipJet and apparently was driven by a belt above the water and kicked butt! Info no longer available...was it way ahead of its time? Quashed? Who knows? Cheers, John ;)
Physics cannot be fooled. Large projection resistance and large seal area (friction) do the trick ... I only agree that the hydrodynamic problem of vibrations has been solved.
We're already working on using highly focused magnetic fields for submarine propulsion. Scaled down versions are already being field tested at Quantico on boats as large as 8 meters.
You can just tell that this whole electric gig is just taking off. With these more elaborate designs it's only a matter of time before most diesels will be either replaced totally for dinghy's and sailboats or at a minimum hybrid designs for cruisers.
@@heyitsmejm4792 Especially with wildlife like large marine mammals and sharks and swimmers. .. ive known some horrors with careless and accidental open prop boats.
what is efficency compared with normal propeler. I mean the stator in center and rotor with blade out side. This is reversed blade inside(rotor) and stator outside. I think have to run at highr RPM but if the efficency is good that is important.
The housing causes a lot of drag in the water. I’m left thinking a more traditional configuration with the electric motor on top (high and dry) is better to more efficiently achieve higher speeds. There are robust variable pitch solutions already developed in a more traditional prop configuration. This might be good for a shore dinghy. The props also don’t seem to be very durable. I’d bet this configuration is susceptible to fouling and damage to the prop (and articulating mechanism) due to debris in the water. It all seems very fragile? Maybe further development might mitigate these concerns.
Interesting.. would stream staighteners be beneficial for increased efficiency of laminar flow? Obviously, you have worked out your maximum venturi effect. Have you fully explored your propeller tips efficiencies throughout the speed range. Looks like you have a winner. Keep up the good work. One more question: durability of the props? Life expectancy in varying water conditions in "real life" ...silty, muddy, weedy, salt, fresh, brackish?
A simple protective ring around a prop of a standard trolling motor will add the only benefit(debatable) this has to already mass produced Trolling motors available
A 10hp outboard on that size of boat would be 3 to 4 Times faster would go all day on 5gal or less & someone such as myself would probably use less than 10 - 20 gal a season.
first things I thought when I started watching!! submerged wood, rope, thick mono or braid, dense weeds, fish, turtles, the thing looks like a $900.00 repair just waiting to happen
Hello DiyNuke, the 1st model (6kWx48V) is available on pre-sale operation up to the end of the year. For this operation, there is a special discount of 25% on the price for the RIM6 Pack (incl controller and throttle handle, but battery excl.), which lowers the price from 6000 to 4500€ vat excl. If you are interested, please leave a message on www.hy-generation.com/contactez-nous
@@DiyNuke Surely, as soon as we have the occasion we'll perform some comparative testings. What is sure : The RIM6 is made for displacement boats : it pushes hard, but will certainly not bring you to 15knots. It should show better perf at lower speed, and not so well at high speeds.
is the only advantage over a conventional propeller on say a Torqeedo just that the prop guard is built in? is there a static thrust advantage per KW power? you can buy a prop guard for Torqeedo motors
Thank you for your supporting comment. We are eager to work for bigger boats. For now, we are discussing around 100 kW max but big needs for fundings. ;-)
Dear Steve, thanks for your comment, sorry for the late answer. If you wish you can mail us throught the website, we well answer asap. www.hy-generation.com/contactez-nous
Just looked it up, $6,990 charger for 8HP equiv, battery and controller then another $780 euro for charger. The equiv 8HP gas setup is $2,400 USD….ah cool technology but no thanks
So.. what is the purpose of this? It's 3x the size of what a prop would be on a trolling motor. It doesn't have the hp to be as fast as an outboard. So what is this for again?
Maybe it was just the audio quality, but really sounded like a lot of excessive cavitation. Seems like SUPER inefficient prop design and drive system. Could be wrong though, its definately different
Hello, thanks for the comment. the 1st model is available on pre-sale operation up to the end of the year. For this operation, there is a special discount of 25% on the price for the RIM6 Pack (incl controller and throttle handle, but battery excl.), which lowers the price from 6000 to 4500€ vat excl. If you are interested, please leave a message on www.hy-generation.com/contactez-nous
Thank you for your message. The 1st model is available on pre-sale operation up to the end of the year. For this operation, there is a special discount of 25% on the price for the RIM6 Pack (incl controller and throttle handle, but battery excl.), which lowers the price from 6000 to 4500€ vat excl. Our working environment is essentially industrial, which is hard to match with our start-up state. We want to make it a tool for environnemental transition. If you are interested, please leave a message on www.hy-generation.com/contactez-nous
It would help if there is no music in some of your clip because although you claim silent...... people still want to hear what it actually sounds like?
aviation already use similar. The fan blades that cover the whole intake push pure air past the turbine and creates more thrust added to the jet itself, although it used the engine to turn the fan
Hello Andy, Sorry to read this. We did try to reply your request, on mails of the 27 of April & 3rd of may, on 2 different mail boxes. Could be that we ended in spam box?
Dear M. De Marc, sorry for this late answer. We are completing information as we go. Still on a start-up mode, hard to keep up on all subjects. We will communicate on trials done as we get them.
IN CASE OF BIG PIECES OF TREES GOING THROUGH THE MOTOR, IT WOULD BE STUCKED OR WOULD BREAKE THE MOTOR. NICE PROJECT, BRILIANT, BUT IT IS NOT FOR ALL KIND OF PLACES.
We have enough plastic floating around in our waters, don't need these plastic replaceable blades contributing to the pollution. They will break when they impact something so it's not a matter of if they become pollution but when. Hopefully you can find an ecologically friendly replacement for those blades
Dear Brett, thanks for your message. They could break but the polymer link + centrifugal force is playing for us so it remains in place until you remove it (carful to carbon splinters though). We do not expect this to happen often : no planned obsolescence with us. After this, we will invetigate more sustainable materials (flax fiber) but still a problem with polymer matrix...
The problem with all these electronic motors is salt water. Even the best setups I have seen end up getting corrosion in the connectors, causing failure and cabling to corrode from the inside out.
Hello ! Agreed, this is why we removed all subsea connections. Power cables are connected inside the watertight controller located onboard (through cable glands)