Abstract: A method and apparatus is disclosed for connecting a drive axle to a propeller. A drive member is configured to mount on a drive axle, a tubular member is coupled to the propeller, and a resilient members is configured to be positioned between the drive member and the tubular member. The drive member has an axis and includes a plurality of radially outwardly extending ribs. The tubular member is coupled to the propeller and has an axis and a plurality of radially inwardly extending ribs. The resilient members has an axis and is configured to be positioned between the outwardly extending ribs and the inwardly extending ribs. Furthermore, the resilient members is mounted coaxially with the drive member and the tubular member.

Abstract: A method and apparatus is disclosed for connecting a drive axle to a propeller. A drive member is configured to mount on a drive axle, a tubular member is coupled to the propeller, and a resilient member is configured to be positioned between the drive member and the tubular member. The drive member has an axis and includes a plurality of radially outwardly extending tabs. The tubular member is coupled to the propeller and has an axis and a plurality of radially inwardly extending tabs. The resilient member has an axis and is configured to be positioned between the outwardly extending tabs and the inwardly extending tabs. Furthermore, the resilient member is mounted coaxially with the drive member and the tubular member.

Abstract: An apparatus and method involves the use of a gauge to measure the pitch and rake of a blade on a propeller. The gauge has a rotational sensor that determines relative rotation of a measurer. The measurer includes a pitch sensor and a rake sensor. The rotational sensor communicates with a display, which provides an output representative of pitch or rake of the blade based on signals received from the rotational sensor.