There are some features, however, which may be safely adopted in propeller selection.
The total weight of the monoplane with engine and propeller is 352 pounds.
Much of the efficiency of the motor is due to the form and gearing of the propeller.
The "thrust" of the propeller is also extraordinary, being between 250 and 260 pounds.
The propeller has four blades which are but little wider than a lath.
The propeller and propeller strut will be noticed in this illustration.
This done, the propeller is soldered to the propeller-shaft.
If a propeller acts in the same way as a screw, then it too must have a pitch.
The propeller is a three-blade affair with a diameter of 21/4 inches.
The end of the propeller also revolves adjacent to the bearing in the skeg.