A good response. I will only add that the pitch varies from hub to tip so that each blade element will be operating at the same angle of attack when the propeller is moving forward. Each blade station will have a different pitch. The propeller "pitch" is specified at a particular distance from the hub (such as 75%). While the distance for specifying is pretty standard, the actual "twist" of the prop from hub to tip may vary between manufacturers. That is one reason that propellers from different manufacturers with the same diameter and pitch specified may perform differently.