Wooden Propeller ID

Reddington · Apr 3, 2025

You have helped me out before and was wondering if you could help again. I am being offered a wooden propeller from the Netherlands. It is 170cm tall. The owners say there is only one marking on the base. Attached are the pictures. It is wider than what I normally see (but they didn't give me the width). Any help would be greatly appreciated!

Wurger · Apr 3, 2025

The prop blade looks like the one used for the later Fw 190D propeller Junkers VS 9.

the pic source: the net.

Reddington · Apr 3, 2025

Thank you for this! It does look very similar. I appreciate the help

Engineman · Apr 3, 2025

Hi,
More specifically, your blade looks to possibly be a a Junkers blade, 9-27012 C-1 with a 3.5m dia that was used on the Fw 190 D-13. That is the type pictured above in #2 by Wurger.
You can see that this has a propshaft cannon and the hub to allow this was the Junkers VS 9 type.
There were quite a few similar late war wooden blades, but your picture has very accurate features of the 9-27012 C-1, from the photo. It is possible that there are more numbers on the assembly and the base of the blade.
The more common Fw 190 D-9 blades were the different 9-27011 versions that were used with the Junkers VS 111 Hub that had no provision for the propshaft cannon.

Cheers

Eng

Reddington · Apr 3, 2025

This is why I love this forum. You guys are geniuses! Thank you so much for the help!

grueni62 · Apr 11, 2025

Engineman said:
…You can see that this has a propshaft cannon and the hub to allow this was the Junkers VS 9 type….

Sorry for "butting in", but I'm curious,
are you saying that there was a cannon firing through the radial engine ? Or is it just using a hub that would allow to install a canon with another kind of engine.

Wurger · Apr 11, 2025

grueni62 said:
Sorry for "butting in", but I'm curious,
are you saying that there was a cannon firing through the radial engine ? Or is it just using a hub that would allow to install a canon with another kind of engine.

Actually not a question to me but I hope , E Engineman doesn't bear a grudge against me if I reply

Contrary to the Fw 190A series, the Fw 190D variants weren't powered by the radial engine but by the inline engine Jumo 213 series. The part that looks like the covering of the radial engine is in fact, the fairing of the cooling radioator that was mounted at the front of the Jumo 213 engine. While the D-9 and D-11 variants weren't armed with a cannon firing through the propeller shaft , the D-10, D-12 and D-13 had them there. The difference is that the D-10 and D-12 variants had the 30mm Mk 108 cannon installed while the D-13 had the 20mm MG 151/20 one there.

Engineman · Apr 13, 2025

grueni62 said:
Sorry for "butting in", but I'm curious,
are you saying that there was a cannon firing through the radial engine ? Or is it just using a hub that would allow to install a canon with another kind of engine.

Hi,

As Wurger correctly says, the Long-Nosed Fw 190-D types have various versions of the inline V-12 JUMO 213 engine. Some JUMO 213 engines were able to have an
engine mounted cannon that fired through the propeller, and some could not.

Eng

Wooden Propeller ID

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