The hub is custom made. I reverse-engineered a Soloprop hub and sized it down to 1/8-scale.
I remember that now! You had a bunch made up and were selling them.... I still don't have a Corsair, so I still can't justify buying such an expensive part for a plane I don't even have. LOL! I'm working on a Mustang with a 90SP engine still... if I ever get it done, then I'll be looking to do a Corsair.
The Soloprop hub maker is a fool for not doing what you did, there's a huge market there with the H9 Corsairs!
Regards!
- Michael