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Old 10-16-2014, 04:09 PM   #1
Mooseflyer
 
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Default Chauviere Metal Prop

I know this might be "blasphemy" to many, but my French brother-in-law gave me his father's metal two-blade Chauviere prop. I really would like to learn more about it but have exhausted my search on the internet and library. Could anyone be so kind as to point me in a new direction?

If there happens to be someone smart on these:

It has a 1920 stamp on the hub so I assume that's when it was made.
Serial #: S 258 N 150 9
It's approx 76" in diameter.

Thanks for any help and sorry to "pollute" the wooden prop forum!

Mike
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Last edited by Mooseflyer; 10-16-2014 at 05:23 PM.
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Old 10-23-2014, 06:54 PM   #2
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No love for the metal prop?
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Old 10-23-2014, 09:27 PM   #3
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Nice looking piece, but I don't think it's for a certified aircraft.
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Old 10-24-2014, 06:53 AM   #4
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Why do you think that?
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Old 10-24-2014, 07:28 AM   #5
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The hub is not typical of any certificated aircraft installation that I've seen, certainly not in the era usually associated with Chauviere wooden propellers (i.e. WW1 era). I've seen that kind of hub on some windmill propellers, but never on an aircraft. I don't know much about the history of Chauviere after WW1, but maybe pmdec will chime in at some point if he has any information.

It's also hard to tell from the picture, but it looks as if it is a very coarse pitch, which would also be a little unusual for a typical aircraft application.
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Old 10-24-2014, 10:43 AM   #6
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Maybe the hub looks goofy because the mounting hardware is still in it. It was purchased after WWII from a French military surplus auction.
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Old 10-24-2014, 10:57 AM   #7
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Well, even the hardware looks "goofy" compared to typical aircraft hubs, which are generally secured by 8 (sometimes 6, sometimes 10 . . .) radially arranged bolts around the hub itself.

The high pitch and two bolts suggest a low speed application of some kind to me.
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Old 10-24-2014, 12:38 PM   #8
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You make good points. Maybe it was a low horsepower prop? Thank you for taking the time to help. Have a great weekend!
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Old 10-24-2014, 03:44 PM   #9
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Hi,
Very interesting thing, indeed!
Could you post large pics of all the markings? Also of the decals (some small details may give a datation). Or sent send the pics by mail to pmdecombeix at yahoo dot com (written like this to evade robots...)?
Regards,
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Old 10-24-2014, 05:29 PM   #10
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Notice also that it's a left hand thread. Not sure if that means anything in this particular situation. Hopefully with a few pictures Pierre-Michel will know something about it.

I must say, it's an elegant and graceful looking "thing".
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