Tim Powell reviews highly innovative etched spinning propellers from Propblur.

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Thanks!

I agree that this is a terrific idea, and looks pretty good.

However, I think that in real life, spinning props do not look that way. A photograph of a spinning prop where the camera shutter 'freezes' the propeller blades, does look like this.

PropBlur is pretty close to perfect but not quite.

My biggest beef with it is that each "blade" is pretty much identical. I feel that there should be some more randomness to the shapes, especially in the case of a multi-engined aircraft. The curves at the tips are also a bit too pronounced; they should be flatter, and the blade shafts a bit wider farther down.

Still, it looks far more dynamic than bare hubs

Maybe the can do a series of different types?

How the blades appear on a photo depends on the shutter speed.

High speeds will freeze the blades so it will look a slightly blurry normal prop, lower speeds will give the tip blurring look like we see on this example with the blurring reducing logarithmically towards the hub on quite low shutter speeds you'll get the blades looking bent as the faster moving tip takes longer to reflect enough light for the exposure.