On 1 Aug 2005 15:48:13 -0700, "argon39" wrote:


Putting a CS prop on a fixed-gear bird will not get you any
appreciable speed.

The only thing it buys you is takeoff/climb performance, and unlikely
to have increased your legal gross weight any.

I never said that the prop did either of these things. What did change
things was putting a 180hp O-360 in the place of a 150hp O-320. The
extra 19hp at 65% power does in fact make it go faster. And the new
legal gross weight per the STC is now 2500.


I fly a CAP C172P that has also been upgraded with the O-360 180HP
engine. But ours stuck with a fixed-pitch prop. On our 172, it
brought our gross up to 2550. I wonder why the difference???


Chuck
PA28-180