The amount of pull needed to cause a piece of sheet metal to tear at the points at which it is held together with rivets. The flat surface on the inside of the rim of an aircraft wheel on which the bead of the tire seats.īearing strength (sheet metal characteristic). The high-strength carbon-steel wire bundles that give an aircraft tire its strength and stiffness where it mounts on the wheel.īead seat area. Varying a small flow of electrons moving into or out of the base controls a much larger flow of electrons between the emitter and the collector.īead (tire component). The electrode of a bipolar transistor between the emitter and the collector. This window is sometimes called the “Kollsman” window.īase. A small window in the dial of a sensitive altimeter in which the pilot sets the barometric pressure level from which the altitude shown on the altimeter is measured. The act of rotating an aircraft about its longitudinal axis.īarometric scale.
Nitrocellulose dissolved in amyl acetate, so named because it smells like bananas.īank (verb). A linear hydraulic or pneumatic actuator that has the same area on each side of the piston.īanana oil.
The tab is automatically actuated in such a way it moves in the direction opposite to the direction the control surface on which it is mounted moves.īalanced actuator. An adjustable tab mounted on the trailing edge of a control surface to produce a force that aids the pilot in moving the surface. The balance panel divides a chamber ahead of the aileron in such a way that when the aileron is deflected downward, for example, air flowing over its top surface produces a low pressure that acts on the balance panel and causes it to apply an upward force to the aileron leading edge.īalance tab. A flat panel hinged to the leading edge of some ailerons that produces a force which assists the pilot in holding the ailerons deflected. The balance cable pulls the other aileron up.īalance panel. When the control wheel is rotated, a cable from the cockpit pulls one aileron down and relaxes the cable going to the other aileron. A cable in the aileron system of an airplane that connects to one side of each aileron. The backup ring is on the side of the seal away from the pressure, and it prevents the pressure extruding the seal between the piston and the cylinder wall.īalance cable. A flat leather or Teflon ring installed in the groove in which an O-ring or T-seal is placed. A floating plate on which the wheel cylinder and the brake shoes attach on an energizing-type brake.īackup ring. Welding in which the torch is pointed away from the direction the weld is progressing.īackplate (brake component). When flying a back-course approach, the aircraft approaches the instrument runway from the end on which the localizer antennas are installed.īackhand welding. The reciprocal of the localizer course for an ILS (Instrument Landing System).
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