April 1998 Issue
Your article about three-blade props caught my eye right off. I have owned three Cessna 180s and have about 2500 hours in them. On the 1974 model I currently own (picture enclosed), I have recently done certain modifications including a three-blade prop that increased the speed in a significant way.
First, it has been my experience that most Cessna 180s are good for about 150 MPH at cruise and it doesn’t make much difference up to about 7000 feet. Above that altitude, they lose speed and show reduced indicated air speed.
Indicated air speed on a standard 180 will be in the low 140 MPH. Above 6000 feet, this will fall to about 135 MPH at 9000 feet. You c...
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