"Dan Luke" wrote in message
...

"Matt Barrow" wrote:


How did you find the 3 bladed prop to perform. Many in the Mooney
community seem to believe the 3 blade prop reduces cruise speed by
about 5 knots.

Supposedly a myth.
Members of Cardinal Flyers have reported cruise speed losses after
conversion to 3-blades. Some have reported ROC improvements and less
noise. The consensus runs against the conversion being worth it.

Not only (far) less noise, but significantly decreased vibration due to
different airflow pulses
against the airframe.

It is also suggested that the miniscule speed loss (1-2%) can be adjusted
out by running higher RPM's that a two blade prop would turn into noise and
vibration.