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Old 02-24-2011, 05:48 PM   #3
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Dear Dave,

Thank you so much for the reply.
I've just done the math and it does point to the Curtiss OX5 measurements except for the center bore, if I'm doing it right, which comes out to 2" not to 2.690". Is the center bore measured on the outside? If yes then it's 2".

So, from all the other numbers given below it seems like it's the OX5 - what do you think? What can you recommend I do to be 100% certain? (I wouldn't want to disassamble the hub if you think that might ruin something or make it less valuable historically....??)
As you can see the finish is completely sun burned...

Thank you very much for your help!!!

- hub thickness: 4"
- hub dia.: 6"
- bolt size: .375
- bolt circle: 5.250

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