Folks,

I never got a chance to meet Paul in person, but I met him on a conference
call in regards to an application of his prop design.

I truly enjoyed speaking with him. I was forwarded an email that Paul  had
passed on 10/9/2011, he had Lung Cancer.

His son Jeff will try to continue his legacy in the propeller arena. If you
are unaware, the technology is being applied in the UAV arena with a
"Variprop" hub.

Go here :
http://www.nwuav.com/nwuav-press-releases/propeller-design-manufacturing.html

Best Regards,
Anthony J. Liberatore

Sorry to hear,.Paul was a true pioneer in aircraft propeller theory and application.
At least he has left us with a new approach to the science.
RIP
Dave Young