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Old 05-11-2007, 04:43 PM   #1
catawbabob
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Default 10' wooden prop

Inquiry: I have a wood propeller given to my Grandfather by Glenn Curtiss (as the story goes) when he befriended him while staying at
my Great-grandmother's boarding house in Buffalo NY, in the early
1900's. It is made out of what appears to be laminated walnut or mahogany. It is 10' long and 7-1/4" thick at the hub.
The hub has a diameter of 20" at the back, tapering to 11" in the front.
There is a 3" hole in the center, and 8 bolt holes spaced on a 4" radius from the center. There are no decals or makers marks that I can see.
The left-right references are made as though sitting in the cockpit. The numbers on the left are "2 " with "12862" underneath, or towards the center. The numbers on the right are "1" with "25374" underneath it, and "JX511" underneath them . There isn't now, and doesn't look like there ever was, anything on the leading edges. I was told that it was probably used on a Curtiss OX-5 engine. Does anybody have anymore information on this prop and/or an idea of the value of this?
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Old 05-12-2007, 08:14 AM   #2
Dave
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Default

Check the hub dimensions and refer to the linked chart to see if you can identify the engine usage. I'll see if I can find any reference to those numbers, although I don't think I can.

Value is dependent on so many variables that it's almost impossible to guess with just that information. A picture would help.
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Old 05-12-2007, 08:35 AM   #3
catawbabob
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Default 10' prop

How do I post a picture?
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Old 05-12-2007, 12:31 PM   #4
Dave
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Default Re: 10' prop

Quote:
Originally Posted by catawbabob
How do I post a picture?
Here's an explanation of how to do it for free.
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Old 05-14-2007, 07:10 AM   #5
Propellerjan
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Default Liberty 12

It look more like an liberty 12 engine to me/ Jan

ENGINE HP RPM HUB THICKNESS HUB (METAL) DIAMETER CENTER BORE BOLT SIZE BOLT CIRCLE

BMW 185 1600 5,8125 7,5000 3,1563 0,5000 6,3125

Clerget 110 1250 6,0000 7,4800 2,7560 0,3940 5,9050

Clerget 130 1250 6,0000 7,4800 2,7560 0,3940 5,9050

Curtiss OX5 90 1400 4,0000 6,0000 2,6900 0,3750 5,2500

Gnome 100 1200 6,0000 7,4800 2,7560 0,3940 5,9050

Gnome 160 1400 6,0000 7,4800 2,7560 0,3940 5,9050

Hall-Scott A7A 100 1300 4,2500 7,0000 2,7500 0,4375 6,0000

Wright A 150 1450 7,0000 7,8750 3,1460 0,4700 6,6930

LeRhone 80 1250 4,2500 5,9050 2,3620 0,3940 4,7240

LeRhone 110 1250 5,2500 7,5000 2,7560 0,4330 5,9050

Liberty 12 400 1700 7,2500 10,0000 3,1250 0,5000 8,0000

Liberty 8 290 1700 6,5000 10,5000 3,0625 0,5000 8,0000

Hispano-Suiza 180 1600 6,0000 7,0938 2,7560 0,4330 5,9050
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