In reply to a message from JBrady5282@aol.com sent Sun 16 Nov 2014:
So if the uneven blade spacing came in about 1936, Heynes
may have had access to this 1935 paper.
or this 1895 paper.
http://www.icevirtuallibrary.com/content/article/10.1680/imotp.1896.19666
In those days it would have been a lot of empirical data, no
computer simulations back then.
Heynes may have convinced Lyons that this would make his
cars quieter than the Standards from which company he was
buying engines.–
XK120 FHC, Mark V saloon, XJ12L Series II, S-Type 3.0
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