Why This Propeller will Change Transportation Forever

In this video, we're going to take a look at the toroidal propeller – a future transportation innovation that will change the way we use ships and airplanes.

The toroidal propeller is a new type of propeller that uses a twisting motion instead of the traditional circular motion. This propeller is much more efficient and is predicted to revolutionize the way we use ships and airplanes in the future. Watch this video to learn more about this exciting new development and how it could change transportation forever!

#propeller
#boat
#beyondfacts

[kurtiswilkes]

A waterjet is not an engine. It has an impeller which is turned by an external power source such as an engine...

[UltimaRSfan]

".... could drastically reduce shipping costs..."

Politicians everywhere: not if we have anything to say about it

[wasupfool]

The bubbles shown in the video are from the exhaust of the engine. Outboard motors exhaust through the hub of the propeller

[flacjacket]

The sharrow props are not 3D printed, they are CNC'd from billets.

[tonysu]

Some of these technologies have been around for more than a couple decades (like pump jets for submarines) and some are fairly current topics (like toroidal propellers and coaxial flow). Despite the hype around toroidal propellers, they might not meet the hype. If tip vortices is the issue, it's probably a lot cheaper and easier to manufacture ducting around a standard propeller than using a toroidal shape. But, there might be some benefits from a toroidal shape that's not talked about much like possible resistance to snagging. Winged sails are a fairly common idea that has been around for as long as there have been sailing ships. There seems to be a lot of research into electrical propulsion, the new Chinese Fujian aircraft carrier is supposed to be powered by some new invention but in general I don't know that there has been much published on advances in technology by anybody.

[MikeKojoteStone]

Here's why I'm excited about that toroidal propeller. I don't own a boat, yacht or container ship, so I couldn't care less for the maritime efficiency. I also don't have any drones and I actually don't even know, if I like the idea of them being more silent. BUT ... I own a gaming computer and those propellers have the same performance jump if used for cooling fans. I also own a fan. Actually, I own 3 large fans for the summer, because Europe has no AC culture. More efficient and more silent FANS are what I want to see. Today, preferably. But I'll take tomorrow as well. Next week is already making me unhappy. Next months would make me cry. So ... can we make these things very popular real quick, pretty please?

[vladimirzagoruy]

I remember tests of aircraft wings of the same type. Tests have shown no advantages. In this case, some of blade surface don't work too. But I suppose that these new blades are more strong; so they may be made more thin and thus producing less drag.

[yelyab]

More efficient than a pump is what they state. A pump is 20 to 30 percent less efficient less efficient than a normal propeller. These propellers have a massage amount of surface area which creates friction which might reduce cavitation but increases drag which reduces speed for a fixed input of energy . It’s been around for about 5 years. Nobody has picked it up. The manufacturing process is not that complicated. Does not relay on computer printing. It can use same process use to cast many complex engine parts using the “ lost wax process”. They use foam which gets cooked out by heat and the mold is filled with molten metal. It’s a very interesting process invented centuries ago by artists.

[abababa]

If the propeller ist 105% more efficient, then how come the fuel saving is only 20%? Could someone explain this? 100% more efficient means twice as good, which in turn means 50% less fuel. so, what's wrong with my maths?

[robfreeman]

I've known about the Sharrow prop for years. Never have I heard it referred to as a "toroidal propeller". This really isn't a "future" propeller, it's here and it's been here. You can get one for your 21 foot bowrider if you want and they do make a difference. They just cost $10-15k due to being custom made for each specific engine and gear drive. A lot of unavoidably complicated math and machine work goes into that. Won't be cheap to get one any time in the near future.

[albatross]

I came just to note that the thumbnail says 105% efficiency. That is not possible. 105% MORE efficient than another type is possible, but you can never achieve 105% overall efficiency.

[freddy]

It would be interesting to know, how far the developement of the toroidal propellers for big ocean ships are and what kind of results they got.

[XPlanes-uhww]

This Propeller can really change transportation- I am sure that the question of the production will be solved with new 3D-Printing technologies in future.

[johnbarker]

Love the potential of the toroidal propeller. There are skeptics on this thread, but IMO they're overlooking something. If propeller ducting would produce the same results, why isn't it already being done?

[ScarabChris]

These propellers do increase efficiency, at least on small recreational boats (up to 50' so far) but the cost is not practical for the recreational boater. For example a 30 foot boat with twin 300 HP ourboards, traditional propellers cost $500-$600 each. This prop for the same engines are over $5, 000 each.

[old_guard]

Appreciate this grab-bag overview of recent developments in propulsion engineering. Advances in electric motor/generator technology, probably developed primarily for automotive use, getting translated over to the marine world.

[humorinpolitics]

The money that could be saved in shipping fuel costs will NEVER get passed on to the consumers. It will ALL be kept by the corporations.

[Hermit-Mech]

Considering most container ships use adjustable pitch propellers to change speed I doubt these props will ever be put into use in that application ... because it would require a fundamental redesign of the powertrain unless its a diesel electric and at that scale its insanely expensive

[lizardhart]

I just saw a video in the past 1 or 2 weeks about the Toroidal Propeller and it is being made with a CNC machine I don't remember the name of the company that is producing these propellers now but they are in Michigan as well as the guy that created and holds the patents for the Toroidal Propeller propeller is from and lives in Michigan

The price should come down dramatically because using the CNC process they can machine one propeller in about 8 hours per CNC machine and the other companies that are or were producing them took about 40 hours to make each Toroidal Propeller

[cyrillawless]

With all the fuel savings bought in for ships since the 80s you should arrive in port with more fuel in the tanks than you left with.