Can anyone tell me what the fins are about on the spinner?

Capt. Vick said:

Really? Hmmm... I thought it was for julienne potatoes.

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Thumpalumpacus said:

It's a 1200-hp orange juicer.

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Snautzer01 said:

Texan way to get some orange juice i am sure.

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Wurger said:

It controls prop pitch.

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Also please check on these links.

German Variable‐Pitch Propeller Mechanisms: A Report on the Characteristic Features of the V.D.M., Junkers and Argus Types | Emerald Insight

German Variable‐Pitch Propeller Mechanisms: A Report on the Characteristic Features of the V.D.M., Junkers and Argus Types - Author: S. Grott

www.emerald.com

Fw-189 Prop Spinner Question

What purpose does the finned prop spinner in this picture serve?

ww2aircraft.net

Spinners

The spinners on some Arado aircraft, e.g., the AR 96 and the AR 396, had some kind of expanding, flower-like front end. Does anyone know what these are or what their function was?

ww2aircraft.net

German Finned Spinners; Circa WWII

I wonder what the purpose of these fins was on spinners in WWII? I know the spinners free-wheeled on bearings. I am thinking, with my mild background in aerodynamics, that it makes the air flare out over the spinner and wash into the prop blades, away from the core area of the center of the...

www.fsdeveloper.com

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SaparotRob said:

These guys are so good, if you ask a question about current Russian aircraft, you'll be conscripted into the VKS.

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