Hi Al I do happen to know a little about the 175 If you will excuse me

for

butting in . It was a fine engine the problem arose out of misuse.

pilots would

not throttle the engine up to it's operating rpm they were used to 2300

2400

rpm and I believe it ran about 3200rpm I'm not sure but the engine was

quiet

and vibrationless.
                                                         ebriggs

-Dean wrote:

The Cessna Employees Flying Club had a 1960 or 1961 Model 175 that I flew
several times.  Yes, the redline was 3200 RPM which gave 2400 prop RPM.  The
last model year was 1963 and Cessna called it the Powermatic 172.  The tach
showed prop RPM instead of engine RPM. Unfortunately, the years of pilot
misuse had destroyed its reputation by then.

Dean Van Winkle
RV-9A/13B NA

The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2003 All world wide rights reserved.