Only thing I found on the net was
http://time-proxy.yaga.com/time/arch...883607,00.html
.. Says, "Another odd prop was offered by Maynard-DiCesare, with the two
blades offset at the hub to give greater bite."
--
Gene Seibel
Tales of Flight - http://pad39a.com/gene/tales.html
Because I fly, I envy no one.