RE: Explain prop sizes to me please
Hi Tony-
The second number in a propeller specification is its pitch, which is related to blade angle. To quote [link=http://avstop.com/AC/FlightTraingHandbook/BasicPropellerPrinciples.html]an informative web site[/link]: "The pitch in inches is the distance which the propeller would screw through the air in one revolution if there were no slippage."
- Jeff