That is one ugly propeller!!!

LOL.....THIS IS A EARLY APRIL FOOLS SET UP....!!!!

Originally Posted by Ion01

There is increased thrust at full throttle due to increased RPM as you say. However, we do expect there to be actual increase in thrust due to the shape but that is unmeasurable at this small of a scale. Basically, by forcing all the air to flow over the wing and not loose any to the tip there will be an increase at equal rpms but, once again, at this size is not measurable in the real world.

I am not familiar with the characteristics of a 60cc so I cannot comment on the last question.

Thanks for that Ion
It looks like the prop shares similar characteristics with its curved blades and larger overall surface area as a wide bladed conventional prop. I'm surprised it doesnt have the opposite effect on rpm because of this reason and slow the engine speed down instead of increasing it. Like for like in pitch size I mean.

The curved blades look as though they are more efficient at directing airflow behind the prop in a tube like fashion without wasted thrust energy being dissipated outwards beyond the props diameter the closer it gets towards the tips which results in a cone shape pattern on a conventional prop.

The last question was generalized for some form of comparison understanding after reading of the significant rpm increase this one gives over a typical prop shape.
I would be interested in seeing thrust comparisons results using fish scales for two or more types of props even though as pointed out above this is only a guide to how the prop is performing.
A split video of the same model with different prop during pull out from a hover would also be interesting.

irriguy , I'm with you on this .

I think it needs a "P" tip as well , also needs a titanium sleeve on the prop bolt centre hole . .

Could also do with some Gold hard coating on the leading edges .

Nice photos fellers .

Why do you say that? I've seen this configuration on electric fans, it gives a more channeled airflow instead of a spread. Be ideal for greater elevator authority but I'm not sure how it would be on ailerons as the flow would be less over the length of the flying surface.

Gotta say that a 3 blade version would be scary to use with those off set tips it would be like flipping a 4 blade. Not much room to get your fingers out the way.

I just want to try one! Signed up on your website this morning... What price point are you trying to hit with the 23x8?

EF 88" Edge 540 with DLE55 ready for the test!!!

I already have Mej 23x8 and Vess 23A... Can't wait!

I've seen forward swept blades in fans before.

Like this:

Originally Posted by TheTank

I thought the motor was running in the picture and the prop was just distorted from the frame rate of the camera! I guess not!!!

Maybe now the props will look straight when snapping pics with engines running???

Originally Posted by irriguy

LOL.....THIS IS A EARLY APRIL FOOLS SET UP....!!!!

Give it up already on the April fools joke.

Originally Posted by Stu_D

irriguy , I'm with you on this .

I think it needs a "P" tip as well , also needs a titanium sleeve on the prop bolt centre hole . .

Could also do with some Gold hard coating on the leading edges .

Nice photos fellers .

I say go for the 116/120 size engine next. We're the guy's spending the money for the good stuff already. But do a three blade along the same lines of the 23x8. Meaning, it's getting to over rev a bit. 26x12-9 should be about perfect!

Originally Posted by teryn

there will definitely be a reduction in noise. The sweep will reduce power by increasing the drag-divergence mach number of the sections (only if the tip machs are > 0.7) but you'll also get a reduction in thrust and strong torsional bending (at the same RPM). I highly doubt that there is a net aerodynamic benefit to this.

You still work for NASA don't ya

Yea guys, no April fools joke this time. Real deal.
I don't have the time to set up a whole new website,and man a phone to pull off a prank.

like it on the Chip DV!!!!! so how does it fly...........................................real lllyy??

That is thinking out of the "box" great!!! what is the prop noise like?

Good luck and sucess on the development. we need more ideas like this!!!!

Al