Does Paul Lipps design blades for C/S props as well.  I would be

interested

in speaking with him about some for the SeaWind. I will design the

electric

control system and hub.


Doug Fir

Hi, Doug!
I design blades for all applications, aerodynamics, that is, but not
the structure. To do a credible job, I need to know the plane's
installed hp and the plane's span, area, and equivalent parasite drag
area. I can design tests to determine the latter.

Paul Lipps
ELIPPSE Design LLC
818 Park Way
Arroyo Grande, CA 93420
elippse@sbcglobal.net <mailto:elippse@sbcglobal.net>

Paul

Thanks, I'll try to get all of the data to you at once.  Two easy questions.
It appeared your props are roughly 9% more efficient than the same size
comparable Hartswell.  Is that a fair estimate?

Second, what type of material are the props on your Lancair constructed
from.

Thanks


Doug Fir




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