Identification help needed

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Erocki300

Recruit
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0
Aug 27, 2020
I picked this up locally but having a hard time getting a story on it. I believe it is called a Bendix/Skunk Works Drone 72" but that's about all I can find out it. Anyone out there that has some insight would be appreciated. It has small damage on one side but still an interesting piece.
 

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Does the bore of the hub have splines? Is the bore tapered? Straight? Diameter of the bore?
 
Does the bore of the hub have splines? Is the bore tapered? Straight? Diameter of the bore?
Does the bore of the hub have splines? Is the bore tapered? Straight? Diameter of the bore?
Thank you for replying Tom. To start, I am not familiar with propellers in any way as I am just a opportunist collector and I thought this was unique and gorgeous. So I am at quickly educating myself and getting intrigued that there is very limited information out there on this prop. I might be starting to get the aviation attraction. So with that being said, I took picture of what I would assume you are asking about. If not, please don't hesitate to call me out on it.

Inner is 1 7/8" Dia and outer recess is 4 1/4"

Erik
 

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This is a really cool piece. Good for you. I see your inquiry on the EAA forums, so I don't have much to add. Bendix Drone, Beech Drone & Camfield Blades Send Monte Chase an email at that site, see what he knows.

It appears the propeller assembly attached to a flat flange with 8 bolts, not a typical propeller shaft. It appears the hub has pivot right through the middle that allows the prop to pivot (rock) on the that yoke. Almost like a helicopter. Perhaps it is for vertical drone of some sort?
 
Great find and in good condition.

The 6 bolt and 2 stud mounting is common on low horsepower older engines and many modern engines. It goes back at least as far as the Continental C-90 from the 1950s and maybe even earlier. This photo is of a modern Continental with the six bolt flange.
1598590052557.png


Please let us know what the eventual results of your search are.
 
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