Flying permit or license.
Small adjustable flaps used in increasing the head resistance during a landing, thus decreasing the speed.
The angle at which the lift of a wing section reaches a maximum.
The static force due to a difference in density. The difference in density between the gas in a balloon envelope and the outside air determines the sustaining or buoyant force of a balloon.
A slow fairly stable aeroplane used in training schools.
C
CABLE. (Fr. Cable.)
A wire rope built up of a number of small strands.
A flying attitude in which the angle of incidence is larger than normal with the tail well down.
The convexity, or rise of a lifting surface, measured from the chord of the curve. It is usually given as the ratio of the maximum height of the curve to the length of the chord. Top camber refers to the upper surface, and bottom camber to the lower surface.