Perry Mick wrote:

Paul wrote:

I think you are right Vance. I plotted the max thrust from 150 HP
assuming
100% efficiency and the curves look a little optimistic at the high end.
Perry, what program are you using?

Paul Lamar

It's the Basic program from the Martin Hollman book "Modern Propeller
and
Duct Design".  I've learned how to manipulate the data output from the
program
into new plots not originally included in the original program, but the
routines
that actually calculate the data are unchanged.

--
Perry Mick
perrym@teleport.com
Duckt N7XR
http://www.mickaircraft.com/duckt.htm

OK I will take a look. Vance has criticized this program in the past.
Can you email the ASCII source code?

Paul Lamar
 
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