Hopefully, this isn't 'old news'.
I recently received a link via another forum to digital copies of Norris' propeller and theory of flight books. The person sharing the link has said that Mr. Norris' family does wish that the books be made available to all that are interested.
Jack Norris books
Charlie
I recently received a link via another forum to digital copies of Norris' propeller and theory of flight books. The person sharing the link has said that Mr. Norris' family does wish that the books be made available to all that are interested.
Jack Norris books
Charlie