Does this prop shape technology exist for drones?

[jakobe75]

 

[The Springs]

Thanks for that very interesting .The prop design seems to be for pusher props which most drones aren't really but I wonder if It would make them much quieter .

 

[GMack]

There is also something called a Blue Edge blade that is a lot quieter. Seems DJI could use them to keep the annoying buzz down that attracts eyes to them.

There is an audio at the bottom of this link that demonstrates the sound difference: Video: A Silent Rotor Blade Paves the Way for Super-Stealth Choppers

 

[jakobe75]

There is also something called a Blue Edge blade that is a lot quieter. Seems DJI could use them to keep the annoying buzz down that attracts eyes to them.

There is an audio at the bottom of this link that demonstrates the sound difference: Video: A Silent Rotor Blade Paves the Way for Super-Stealth Choppers

I read this a few years ago, it's from 2009.

I would expect that this tech has trickeld down to the public sector by now.

 

[jakobe75]

Thanks for that very interesting .The prop design seems to be for pusher props which most drones aren't really but I wonder if It would make them much quieter .

A wing is a wing and a prop is a wing right?

 

[anotherlab]

The Blue Edge rotor blade uses piezo electric motors to "flap" the trailing edge of the blade 15-40 times a second. It lowers the decibel level on descent, ascent and actual flying would still be loud.

It also does nothing for the noise of the phantom's motors.

 

[jordan225171]

This has nothing to do with this post. But can some one tell me how to even post on this app. I know it's a stupid ? But honestly I can't figure it out lol


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[jakobe75]

This has nothing to do with this post. But can some one tell me how to even post on this app. I know it's a stupid ? But honestly I can't figure it out lol

The app is junk and buggy. I use the browser.

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[jordan225171]

Thank you for your help much appreciated


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