The future of Propellers ???

[scottar]

Something new.
http://www.sharrowengineering.com/re...j9ps4egDzvSZGE

[gazza2006au]

Seen this on fb today the image on their looked photo shopped i thought it actually was a joke

[myusernam]

Is it a Japanese invention for shallow water?

[The Mad Cat]

Is it a Japanese invention for shallow water?

That's funny.

TMC

[Ah Me Ting]

Looks interesting. Info on that website, if correct, suggests a lot of testing and data to support claims of efficiency improvement.

Wonder how long until they are available in Australia?

[Chimo]

More to the point, how much and can the prop guys fix them when you kiss a rock?

[Andy56]

Interesting for sure. Lets see appropriate reviews before saying yae nor nae. We are a skeptical bunch for sure, but then havent we seen it all before, hahahahaha.
9-15% improvement is a massive call. If its too good to be true............

[MikeyS]

Link to their Australian patent application HERE . Just because it's in a patent, doesn't necessarily mean it works. But the interesting word in the claims is "lift". Screw type propellers don't provide lift.

I wouldn't rule out the possibilities. And if you think there's nothing new under the sun, have a look at the SailGP vidoes. Who would have thought that 10 years ago. Key word again is LIFT.

Will be interesting to watch.

[tunaticer]

Probably working on 9-15% less blade area to give the performance benefit.
Will they be 15% more expensive??
I'd reckon more.

[scottar]

Guess we will have to wait and see when people start spending their hard earned and real world figures start hitting the streets. There is specific mention of a propeller design in regards the efficiency gain - "the industry standard Wageningen B series design". I did a quick google search and as a layman understood about sweet F- all of the first couple of sites I looked at. Not all propellers are created equal now so whether or not there will be a rather large "individual results may vary" hidden in very fine print will remain to be seen. At a guess though it will be there somewhere. Good to see someone thinking outside the box though.

[TREVELLY]

Expect the racing guys to use them first if they are good.
Especially in US where they put a heap of HP on the back of a long glass console boat

[catshark]

interesting idea , reinventing the wheel. yeah naaaaa i use something like that at home to whisk eggs, lots of bubbles..

[Lovey80]

I would have thought that either props with variable pitch designs, or automatic gearboxes that increase RPM at the prop would enhance boating performance well before static prop designs would.