Axle.
Wing span.
A system in which the pitch increases or "expands" towards the tips of the propeller.
F
FABRIC, WING. (Fr. Entoilage.)
The cloth used for covering the wing and control surface structures.
Wood coverings used to streamline steel struts or other structural members.
Sheet steel caps used for the ends of the interplane Struts.
A fixed vertical stabilizing surface used for damping out horizontal vibration and oscillations.
The ratio of the maximum length to the width of a streamline body.