Continuing the discussion from DIY components from MHZ:
Hi Amberjet, but Mhz sells this impeller https://www.mhz-watercraft.com/shop/en/jets/636/spare-impeller-jet-58-58mm-diameter-spare-part?c=110, Virus produces this impeller https://www.youtube.com/watch?v=25ZmHNp7-I0&t=8s 1 and VeFoil tests this impeller https://www.youtube.com/watch?v=k_q6uXC3lyk&t=50s. All these impellers are very similar. Why are you preparing the impeller according to Archymed’s bolt?
WNT agrees. All the screws you replaced are similar. My screw is very different from them. In my opinion, Archimedes’ screw is optimal in my project. Tests will show who is right.
Lampuga, LiftFoil, and others have forced water cooling. I eliminated forced cooling. Time will tell who is right.
LiftFoil, Virus and others have a planetary gear. I eliminated the planetary gear. Time will tell who is right.
Hi, but Mhz, VeFoil and Virus do not use the gearbox for the jet propulsion. They use direct drive, eg Mhz here https://www.mhz-watercraft.com/media/image/90/8e/f5/[email protected] 1 Believe me Archimed’s screw is obsolete, only used such as a pump or a water turbine. Therefore your test jet propulsion with Archymed screw will not succeed. You just lose money, time and success. The e-foil speed with Archimed screw will always be low, inefficient.
Virus uses a planetary gear
And this is a modified Archimedes screw.
MHZ uses a powerful motor (22kW). Large diameter = high torque and does not have to have a planetary gear.
LiftFoil, Fliteboard and others use planetary gearboxes
Mhz has a very powerful engine because e-surf needs high performance. E-foil needs a weaker motor because the battery has less capacity and the e-foil has less resistance over the water.
The Virus uses two drive systems, one drive with a conventional propeller gearbox, a second drive without a gearbox.
VeFoil does not really use the transmission for the latest prototype drive. Please carefully review all his videos. I also think that VeFoil is the only designer in the world who is developing the VeFoil drive prototype in the right way. However, his impeller (https://www.youtube.com/watch?v=k_q6uXC3lyk) will need to be optimized a bit.
But your impeller can not be optimized, a high quality impeller can not be made of plastic and printed on a 3D printer, and it can not be Archyméd’s screw or its modification.
I’m sorry WNT but I and continuing for several days will be tests.
For testing, a screw from a 3D printer is excellent.
I have been researching and developing Propellers for many years when you were not yet in the world. I recently printed a highly efficient propeller on a 3D printer and high quality plastic. But unfortunately, the test could not be done because the blades bend under the pressure of the water. The leading edges and drain edges must be special in shape but the 3D printer can not print. The impeller must therefore be made of high quality aluminum (titanium, steel, etc.). Trust me finally, please, please.
WNT why should I trust you as soon as you criticize and do not offer anything in return. Show us what you can do master. Suggest a water jet propeller project without a planetary gear. If you have been doing so for so many years, propose a drive that is better than mine. Better than Virus. Better than LiftFoil. Better than FliteBoard.
Show us the best drive. Show me how it’s done.
Are these screws according to your WNT design ???